Onto Innovation Inc

NYSE:ONTO

Earnings Call Transcript 2021-Q4

[Operator]

Good day, ladies and gentlemen, and welcome to the Onto Innovation Fourth Quarter Earnings Release Conference Call. Today's conference is being recorded.

At this time, I'd like to turn the conference over to Mike Sheaffer, Investor Relations. Please go ahead.

[Michael Sheaffer, IR]

Thank you, Keith, and good afternoon, everyone. Onto Innovation issued its 2021 fourth quarter and full year financial results this afternoon shortly after the market closed. If you have not received a copy of the release, please refer to the company's website where a copy of the release is posted. Joining us on the call today are Michael Plisinski, Chief Executive Officer; and Steven Roth, Chief Financial Officer.

As always, I need to remind you of the safe harbor regulations. Any matters today that are not historical facts, especially comments regarding the company's future plans, products, objectives, forecasts and expected performance consist of forward-looking statements within the meaning of the Private Securities Litigation Reform Act.

These estimates, whether expressed or implied are based currently on information and the company's best judgment at this time. Within these is a wide range of assumptions that the company believes to be reasonable. However, it must be recognized that these statements are subject to a range of uncertainties that can cause actual results to vary materially. Thus, the company cautions that these statements are no guarantees of future performance.

Risk factors that may impact Onto Innovation's results are currently described in Onto Innovation's Form 10-K report for the year ended December 2020 as well as other quarterly filings with the SEC. Onto Innovation does not update forward-looking statements and expressly disclaims any obligation to do so.

Today's discussion of our financial results will be presented on a non-GAAP financial basis unless otherwise specified. As a reminder, a detailed reconciliation between GAAP and non-GAAP results can be found in today's earnings release.

I will now go ahead and turn the call over to Mike Plisinski. Mike?

[Michael Plisinski, CEO]

Thanks, Mike. Good afternoon and a happy new year to everyone. We're pleased to start the year off by reporting fourth quarter revenue exceeded the high end of our guidance, growing 12% over the third quarter and resulting in our equipment business growing nearly 50% for the year. This was our fifth straight quarter of revenue growth, and it was our eighth consecutive quarter of increasing operating margins. The Onto team has done a great job unlocking operational synergies even in this environment of rapid expansion and disruptions from the pandemic and global supply chains.

Despite these ongoing challenges, we expect to maintain our growth momentum into the new year with projections for first quarter revenue, up slightly at the low end and up approximately 7% at the high end of our guidance range.

But before looking to 2022, let's begin with a few highlights from the fourth quarter, starting with the advanced packaging and specialty device markets, which grew by a very healthy 21% over the prior quarter.

Revenue from compound semiconductor and RF manufacturers increased by 140% in the quarter and represented roughly 40% of total revenue from our specialty and packaging customers in the quarter. Our powerful combination of process control technology and process analysis software is delivering higher levels of productivity to our customers and contributed to this strong demand. As an example, a recent customer leveraged our integrated solutions to increase factory output by an estimated 10%. We see similar opportunities to increase productivity for our advanced packaging customers, especially in heterogeneous packaging.

For example, by integrating our complementary inspection, lithography and software technologies into a solution we call StepFAST, we simultaneously improved productivity and yield. In the fourth quarter, we delivered our third StepFAST solution to a leading supplier of panel level fan-out technology used for packaging, high-performance 5G devices.

We expect to uncover additional opportunities to provide productivity solutions to our JetStep X500 customers as we begin to deliver against our 100 million of backlog. In parallel to heterogeneous packaging, we see a universal acceleration of interconnect strengths creating demand for more precise metrology and higher resolution inspection systems. The Dragonfly platform meets these new industry demands by providing accurate 3D metrology, Clearfind reliability and submicron inspection resolution in a single system.

In addition, we leverage our software to automate the analysis of these data streams to provide not just critical data but critical decisions. As a result, revenue for our Dragonfly platform increased 67% over the prior year.

Turning to our advanced nodes customers. Revenue from this market increased 6%, resulting in another quarterly record. Our Atlas platform is proving to be a powerful base for optical metrology. It can be configured to measure everything from the most advanced 3D transistor structures down to common planar films.

We see increasing capital intensity for the Atlas platform, especially in advanced logic, where we provide measurement sensitivity required for complex transistor structures such as advanced FinFET and gate all around at speeds orders of magnitude faster than X-ray systems. In fact, 60% of our advanced logic revenue in the quarter was to support metrology for the 3-nanometer node.

Metrology for DRAM memory represented the strongest growth in the quarter with revenue from several large capacity expansions in Asia. The combination of our Atlas platform and AI to frac software delivers improvements in sensitivity and modeling times by, again, aggregating data from multiple sources. We've shown this hybrid metrology solution provides a fivefold increase in sensitivity for our integrated metrology platform, resulting in a 74% increase in integrated metrology revenue for the advanced nodes in 2021. With several memory customers forecasting additional expansions in 2022, we're optimistic that this growth will continue into the new year.

Before we discuss our outlook for 2022, I will turn the call over to Steve to review our financial highlights for the quarter. Steve?

[Steven Roth, CFO]

Thanks, Mike, and good afternoon, everyone. I will start by providing some details on our Q4 results and then follow with our guidance for the first quarter of 2022. As Mike mentioned, we had another record revenue quarter. In fact, we had several company financial records this quarter. Our fourth quarter revenue was $226 million, above the high end of guidance, up 12% over the last quarter and up 45% over the same period last year.

The revenue growth was broad-based with metrology, inspection and software all experiencing record revenue in the quarter. Breaking down the revenue by market. 48% of the sales were in our specialty devices and advanced packaging markets, which continued to strength from the previous quarter and increased 21%. That increase was driven by RF, MEMS and power customers as well as growth from the OSATs.

The advanced node markets represented 33% of sales with strong memory sales being partially offset by weaker logic foundry sales in the quarter. Finally, software and services increased slightly and represented 19% of revenue.

We continue to maintain strong gross margins at 55% in both the third and fourth quarters. Higher revenues, including stronger software sales were offset by supply chain and logistic cost increases in the quarter. We continue to work on product margin improvement programs and supply sourcing programs to mitigate the impact from the supply chain on our gross margin.

The fourth quarter operating expenses was $54.9 million, an increase of $3.3 million from $51.6 million in the third quarter. The increase is primarily due to onboarding of new headcount to support the growth we're experiencing and variable compensation plan adjustments.

We continued our quarterly operating margin improvements each quarter since the merger with a record fourth quarter operating margin of 31% and well within our published long-term operating model on a quarterly run rate basis. We also published a new long-term operating model just after the quarter closed with revenue targets of $1 billion to $1.4 billion, operating margins of 31% to 36% in those revenue ranges and earnings power north of $8 per share at the high end of that model.

Net income increased in the fourth quarter and was $61.2 million or $1.23 per share and above the high end of guidance. In the third quarter, we reported net income of $48.7 million or $0.98 per share.

Moving to the balance sheet. We ended the quarter with a cash position of $511 million, up $50 million from Q3. Our free cash flow for Q4 was $51 million or 23% of revenue. And for the year, we generated $163 million of free cash flow. Accounts receivables decreased to $177 million in the quarter, and our days sales outstanding declined to 72 days. Our inventory increased to $243 million in the quarter on higher planned sales for 2022, and continued acceleration of inventory deliveries as a hedge against our supply chain -- against supply chain disruptions.

Now turning to the first quarter guidance. We currently expect revenue to increase from the fourth quarter and be in the range of $226 million to $240 million. As noted last quarter, we currently have several of our new lithography systems, which have shipped or are shipping in Q1, with the revenue being deferred awaiting acceptance from the customer. It is currently unclear whether those systems will be accepted by the end of the quarter and recognized as revenue. The high end of our revenue guidance anticipates inclusion of those lithography systems.

Earnings per share in the revenue range are expected to be between $1.13 and $1.20 per diluted share and are partially affected by a reset of our effective tax rate for 2022. We also expect our gross margins to be between 53.5% and 55.5%. As we previously discussed, our new lithography systems will put some pressure on our gross margins during 2022 due to manufacturing inefficiencies as we ramp our production throughout the year.

For operating expenses, we are aggressively hiring to support our growth and typically have higher operating expenses in the first quarter as payroll taxes and other compensation plans reset. Therefore, we're currently anticipating our operating expenses will increase in the first quarter and be in the range of $55.5 million to $57.5 million.

And with that, I'll turn the call back to Mike for additional insight into Q1 and the remainder of 2022. Mike?

[Michael Plisinski, CEO]

Thank you, Steve. Looking broadly at the industry, we see a growing number of end markets being enabled by advances in semiconductor technology for wireless communication, high-performance compute, power devices and sensing. These new end markets are simultaneously increasing the need for additional chip capacity as well as advances in manufacturing process technology to make future devices faster, smaller and greener.

At Onto Innovation, we are collaborating closely with leaders across the semiconductor value chain to deliver the manufacturing solutions needed to accelerate their road maps and fulfill expanding end market demand. These partnerships strengthen our ability to serve core markets while also opening the door to new markets. We estimate an increase of $650 million in new addressable markets spanning substrate, device and packaging. This should provide additional tailwinds independent of projected industry growth over the next several years.

Zooming into the first quarter guidance Steve just outlined, we project revenue from memory customers in both DRAM and NAND will increase by over 50% in the quarter. As we mentioned earlier, our integrated suite of metrology is providing important value to our customers. As an example, we're contributing to yield improvement at one of our largest 3D NAND customers by aggregating Atlas OCD with integrated and films metrology data. This aggregation is providing a more complete view of deposition, etch and CMP process steps, again, it's speed suited for high-volume production.

For the year, we see NAND continuing to be strong with capacity expansions for 128 to 176 layer NAND devices. We also see technology ramps to 192 and above increasing during the year.

We expect similar strong demand from several DRAM customer expansions, which we also believe will remain at elevated levels through the year. The strength in DRAM memory this year is being driven by the positive impact the work from home trend is having on cloud and server markets as well as the growing number of memory hungry AI applications.

Simultaneously continued 5G handset and device adoption creates a 2x increase in NAND demand over prior generations, and the increase in mobile workforce is pushing up demand for reliable solid-state drives.

Within our specialty devices and advanced packaging markets, we expect to see demand for our advanced packaging solutions grow by over 40%, primarily from the top IDMs. In addition, we see solid traction in the advanced image sensor market with revenue in the first quarter from 3 leading customers in 6 manufacturing sites. We do see a reduction in spending in the first quarter from advanced logic and compound semiconductor manufacturers after each contributed so strongly last quarter.

Our positive outlook for the first quarter reflects our best understanding of the risks presented by global supply chain shortages in COVID. So far, the Onto team has been managing admirably through the unpredictable nature of these challenges. However, we are certainly not immune to these challenges and so they remain an ongoing risk. We expect this uncertainty, especially in the supply chain, will continue to be a factor through at least the first half of 2022 and possibly the entire year.

However, if we look more broadly at the year, we see demand across several end markets continues to be robust. In response, industry estimates for semiconductor equipment spending continue to increase across all of the markets we serve. As a result, it appears 2022 will be another double-digit growth year for the industry. And with the solid demand we see today for our products in our core markets and from new served markets, we feel we are well positioned to outperform industry growth.

With that, we'll now open the call for your questions. Keith?

[Operator]

[Operator Instructions]. We'll take our first question from Craig Ellis with B. Riley Securities.

[Craig Ellis, B. Riley Securities]

Congratulations on the very strong performance in the quarter and the outlook, guys. I wanted to start just understanding a little bit more about panel litho, really a 2-part question. I believe there's $100 million in backlog there. And if you could provide any color on the pacing of how that backlog might ship through '22 and '23, it would be helpful. And then Steve, with the commentary on gross margin, in the near term being impacted by rev rec of that product in a 53% to 55% range. The question is, is that impact something that's in the initial part of the manufacturing ramp? Or is that something that would persist through the period where we have the $100 million in backlog.

[Steven Roth, CFO]

So Craig, I'll answer that one first. Yes. So I think we're going to see the manufacturing impact throughout the year. I mean, we're not shipping a lot of systems, we're going to ship only several couple of systems each quarter. And so that $100 million, as we said, go through 2022 and through 2023, I would say, maybe a little less than half of it going this year and then going into 2023, and I think some of it might be driven into 2024 now.

The margin thing, as we ramp, I think, is going to be a kind of a full year event in 2022, I mean we obviously some efficiencies as they get better at building the systems as well as that's the manufacturing side of it as well as we continue to obviously work on cost downs from the engineering side and quantity buys and things like that as we grow. So I think it's going to be for the pretty good impact throughout 2022, and then you'll see improving in 2023, the impact of the litho business on our business.

[Craig Ellis, B. Riley Securities]

Got it. And then combining that with a longer-term question related to the target model, and I'm not sure if this is better for you or for Mike. But with the target models, $1 billion, $1.2 billion and $1.4 billion points. Were those anchored either in points in time or specific levels of WFE? How should we think about the way the executive team and the broader Onto team is looking at some of the underlying drivers to attaining those different levels and over which time period?

[Michael Plisinski, CEO]

Yes. So Craig, what we look at is pretty conservative estimates for WFE. So we look at industry growth and we consider growth as well as potential contractions. But the bulk of the model is based on the tailwinds that we can create through SAM expansion, through new product introductions, through some of the solutions that we have either recently introduced or in the pipeline, where we know where the customers demand drivers are and what their needs will be. So our model is really a combination of the market, but mostly what we're trying to drive and have a little bit more control of, if that makes sense.

And let if you want to look at timing, we don't we don't have a set time, but you could guess that based on the last models, and we achieved that in this relatively quickly in this industry kind of 5-year time frame would be a reasonable 1 plus or minus on either side, more to the play.

[Craig Ellis, B. Riley Securities]

Yes. Well, certainly, the annualized level of the first quarter's earnings guide is making very robust progress towards the $1 billion model. So good for you. But clearly, there are some gives and takes with gross margin based on some of the things that Steve said about panel litho. Okay. Very helpful, guys. I appreciate it. And congratulations again, I'll hop back in the queue.

[Operator]

We'll take our next question from Quinn Bolton with Needham.

[Quinn Bolton, Needham]

Let me echo my congratulations on the results and outlook. I guess, in '21, you saw a number of product lines growing at rates well above the WFE industry, and it looks like you guys expect to do that again in 2022. Wondering if you might rank order for us or if not rank order, just give us your thoughts on which segments of the business do you think will be the fastest growing in 2022? I mean it sounds like you've got good tailwinds in litho, you've got good tailwinds in advanced packaging, but also in metrology. So kind of hitting on a lot of cylinders. So how would you rank the growth drivers in '22?

[Michael Plisinski, CEO]

So Quinn, from a percentage basis, obviously, litho would have -- would be the top because it's starting from such a small base. So I'm going to put that to the side. From the core products, the metrology, the advanced node metrology products, we think, are going to have the strongest demand in support of the very strong demand we're seeing in the market. And the share gain opportunities we see with some of the new products and the traction we see with the solution approach we're taking with the hybrid metrology, leveraging the AI to frac software.

Not too far behind that, we see real strong demand for Dragonfly in the advanced packaging and the advanced primarily to support some of the initiatives that I mentioned on the call for a much, much smaller interconnects, more dense interconnects, bumps starting to approach $500 million per wafer and the need for not just inspection, but metrology and also that reliability path that we can do with the Clearfind technology that we have. So there are several drivers on the Dragonfly platform, including the CIS, which we've seen some really nice traction in the last 2 quarters. So Dragonfly would probably be the -- an advanced packaging will probably be the next.

Then third would be the compound semi, that's going to bring in our overlay metrology as well as our inspection and software. And that's a much smaller market. But from a growth perspective, the traction has been pretty robust in the last, I'd say, 4 quarters, maybe even going back 6 quarters, and we expect that to continue into 2022.

[Quinn Bolton, Needham]

Great. And then I wanted to follow up on Craig's question about gross margins. Steve, would you expect -- I mean, obviously, that litho pressure sounds like it's going to be with you for most of 2022. So would you sort of expect gross margins to trend relatively flat during the year? Or do you think growth in other product lines cost out, hopefully, lower COVID-related and logistics costs through the year that Q1 might be a trough in gross margin with modest increases in the following quarters?

[Steven Roth, CFO]

Yes, it depends. So obviously, Q1, we have several litho tools if they all -- if they get accepted, that's probably -- that's obviously what's kind of the low end of my margin guidance there. Obviously, without the tools, we're up north of 55%, right? I mean it is the high end of my guidance. It's kind of the range bound we're at.

So it's going to depend on how the litho tools layer in each quarter. But I would say we've been at around 55%. So is there room to be anywhere 55.5% is probably the top end. If we have a level litho throughout the year, somewhere in that -- I think we're going to be in that 53.5% to 55.5% probably all year if the litho is evenly spread. And the concern will be, obviously, if it gets lumpy, it will have a different more of an effect.

[Operator]

And we'll take our next question from Brian Chin with Stifel.

[Brian Chin, Stifel]

Congratulations on the nice results and execution in the quarter and thanks for letting us ask a few questions. Maybe just fine-tuning maybe the question or 2 that was just asked. Mike and Steve, why don't you get beyond the revenue recognition acceptances and maybe that happens in Q1 for a customer to maybe happens in Q2. But from there out, it should be pretty much your revenue against sort of your linear shipments. Is that a fair way to put place that dynamic?

[Michael Plisinski, CEO]

Yes. That's for sure. Yes.

[Brian Chin, Stifel]

Okay. Great. And then again, looping back on the substrate opportunity, it sounds like there is some room over the next, say, 12 to 18 months to drive lithium margins up. But are you more focused on wrapping higher-margin Firefly inspection and software around the litho tools replacing the customers? Is that really the bigger focus, and that will obviously drive a good margin point for that sort of blend?

[Michael Plisinski, CEO]

I wouldn't say it's -- 1 focus is above the other, both are other focus. So we see opportunities for both. We're aggressively pursuing both areas. And we have the organization to do more than 1 thing. So nobody gets the free pass on that one.

[Brian Chin, Stifel]

And maybe kind of a bit of a technology question, but hybrid bonding, it certainly enables significant interconnect density. And I realize we're still a ways out from broader industry adoption. But given that systems are hitting your backlog now vis-a-vis your press release, can you describe the impact hybrid bonding will have on inspection intensity in the years ahead?

[Michael Plisinski, CEO]

Yes, I think that's going to drive a significant shift in some of the metrology and inspection requirements. When you're talking about bonding wafers and expensive wafers together, just 1 interconnect or, let's say, coplanarity across these interconnects and when you bring them together and they don't match or they don't mesh tightly enough to make a good bond, you're destroying not just 1 chip, but multiple chips. And so the -- not just the coplanarity but also the surface roughness and the surface shape of these interconnects, is going to be critical. We're developing, we're in the process of developing technology now that will be able to address some of these future challenges as hybrid bonding moves from what we're seeing in CMOS image sensors, which are fairly larger interconnects advanced, but larger compared to what we expect to see in advanced packaging for logic and other more advanced compute devices.

[Operator]

We'll take our next question from Mark Miller with the Benchmark Company.

[Mark Miller, Benchmark Company]

Let me add my congratulations on another very strong quarter. I'm just wondering what type of pressures are you seeing from your component suppliers in terms of pricing and how are you handling that?

[Steven Roth, CFO]

Well, we've started -- I think I mentioned in my discussion about the fourth quarter margins. We are seeing some price increases being passed through. I think -- the big thing for us is we obviously -- for critical components, we have a relatively long lead purchase orders. So we've seen a little bit of that so far. We've been able to -- obviously higher revenues to offset that. But I do think that's going to continue to be a challenge for everybody for all 2022 for sure.

[Mark Miller, Benchmark Company]

Are you starting -- there's a number of new fabs. I think there's at least 5 new fabs that are ramping next year. Are you starting to see any orders or you expect to see them late in the year or early next year?

[Michael Plisinski, CEO]

For sure, we're starting to continue to see better visibility through our backlog. And I don't think we're taking significant amount of orders for 2023, but we are taking some, and we are seeing customers approaching us and starting to understand the slotting plans and wanting to reserve slots in 2023. So for sure, visibility is improving. But I wouldn't -- I think right now, the focus is really on making sure we meet all the demand that we see right now in 2022.

[Operator]

We'll take our next question from David Duley with Steelhead Securities.

[David Duley, Steelhead Securities]

I had a couple. I guess in reference to the $100 million lithography backlog, I think you've mentioned, Steve, that just under half of it might ship this year with the balance in 2023 and '24. I'm assuming that's just the lithography systems. Could you help me understand since you're kind of packaging these with inspection or metrology and software what the total opportunity might be for that $100 million? Is the other tools adding another $100 million to that opportunity? Or is it less? Or maybe help me understand how the bundling of things impacts the $100 million of lithography backlog?

[Michael Plisinski, CEO]

Yes. That's a great question, David. And so I'll maybe add some color or clarity. The -- we've proven use cases for panel-level fan-out. So panel level fan-out applications, we've developed a very nice integrated solution, as I described, combining the inspection, lithography and software together to solve certain inherent process issues with panel level fan-out.

The X500 is going after a different panel market, the substrate market and the challenges are going to be different. So the solution doesn't directly apply, although we think several pieces of it will. But we're -- what we said in the commentary is as we begin to install these systems and understand more deeply the process and challenges, we'll have a better understanding of what other components we can bring to bear from the portfolio of technologies we have in order to provide increased productivity and yield for these customers. And for sure, that's a big need for our X500 customers. Yields are not -- they're certainly not at 90%. They're well, well below that, and they're feeling tremendous pressure to ramp and increase production capacity.

[David Duley, Steelhead Securities]

So can you characterize the $100 million, how much is for the fan-out versus the, I guess, the substrate markets? Or how are --

[Michael Plisinski, CEO]

It's nearly all X500. So it's nearly all for the substrate market.

[David Duley, Steelhead Securities]

Okay. Okay. And then you mentioned in your prepared remarks about how you've worked hard to get into the power device markets. And I was wondering if you could just help us understand how -- as far as total revenue goes, how big is your exposure to the power markets or -- and specifically maybe the silicon carbide market. And then which product lines are the biggest drivers of your revenue and exposure to that sector?

[Michael Plisinski, CEO]

So for power, as far as exposure goes, I think we have pretty broad exposure into the customers' manufacturing GaN silicon carbide, et cetera. They're obviously much smaller than our other customers, but with pretty high projections for growth. Our product lines that are in the -- serving those power customers. The 2 primary ones would be our Dragonfly inspection as well as our IVS or iVision overlay metrology systems. And then we bring together the software, which several power customers have also adopted. So overall, from a company standpoint, power market is a little bit smaller, and it's in the specialty devices and AP. But it is projected to be pretty decent growth on a percentage basis this year, 2022. And we do have a compelling combination of technologies, we think will give us a strong opportunity gain share in that market.

[David Duley, Steelhead Securities]

Okay. Great. Final one for me is, I think you mentioned you thought the overall WFE market would grow double digits and that I think you also mentioned that you would outperform that. So the suggestion is that whatever WFE is that your revenue should grow a bit faster. I guess I'm trying to figure out, above 10% is kind of a big range. I'm wondering what you think the WFE market will grow in 2022?

[Michael Plisinski, CEO]

Well, we've seen estimates vary a lot, and we've seen estimates change since the last call till now. So at that point, it was 8% to 12% range. Now we've seen estimates 15%, even as high as 17%, 18%. So somewhere in that range is where -- if somebody is going to be right in their estimates, and we still feel confident we would outperform in that range.

[David Duley, Steelhead Securities]

Okay. So just to kind of -- I don't want to say pin you down, but just to understand what you just said. -- we've increased the range of WFE growth to, let's say, roughly 15%, and you think you can outperform that rate if that's where the market grows?

[Michael Plisinski, CEO]

Correct.

[Operator]

[Operator Instructions] We'll take our next question from Hans Chung with D.A. Davidson.

[Hans Chung, D.A. Davidson]

Congratulations on strong results and outlook. So I have a couple of questions. First, I want to follow up on lithography related topic. So the $100 million, the backlog is, I think, as for the first customer, right? And then obviously, you have already clarified for third customer. So I guess my question is like how -- what kind of revenue opportunity is say, for the second and third customer going forward? Will that be -- could that be benchmarked to the $100 million type of revenue opportunity going forward?

That's a good question. So within that $100 million are several customers, actually. So it's not all 1 customer. And we're really being constrained by our ability to ramp production and to ramp production capacity in a timely manner to meet the needs of the market. So we have, I'd say, 3 to 4 customers in that -- yes, maybe up to 5 customers in that bucket in that $100 million, and they all have varying levels of systems assigned to them.

[Hans Chung, D.A. Davidson]

Got it. So basically, it's sort of like $50 million run rate type of business going forward, right?

[Michael Plisinski, CEO]

It depends. We've seen pretty aggressive forecast going out several years from now that depending on how well the X500 does and what share we get of the overall business could be above that. I would probably be disappointed if it was a $50 million run rate.

[Hans Chung, D.A. Davidson]

Got it. Got it. And the next question is, can you provide some color about the backlog exiting 2021 and also the lead time right now versus a quarter ago?

[Michael Plisinski, CEO]

Specific to the lithography or in general?

[David Duley, Steelhead Securities]

In general?

[Michael Plisinski, CEO]

So from a lead time perspective, it varies by product line, of course. And we have a wide range of product lines and with supply chains and demand the way it is, where obviously, lead times are pushing out. So we've been trying to get customers to issue purchase orders early enough that we can actually ensure we have the inventory and the build and the slots on hand to meet their demand. So from a rough range, I'd say, now 4 to 6 months. And for litho, it's up over -- at this point, it's almost 2 years. We're now booking for 2024.

[Operator]

At this time, there's no further questions in the queue. I would like to turn the conference back to Mike Sheaffer for any additional or closing remarks.

[Michael Sheaffer, IR]

Great. Thank you, everyone, for joining us today. We know it's a busy time for earnings, and we really appreciate your time today. I'm sure we'll be catching up with some of you at the Morgan Stanley conference on March 9, and we'll be looking forward to catching up to many others throughout the quarter. With that, I'll turn the call back over to Keith to wrap it up.

[Operator]

Thank you. Ladies and gentlemen, this does conclude today's conference. We appreciate your participation. You may now disconnect.