150mm Semiconductor Equipment: The Window Is Closing
150mm fab tools are disappearing from the secondary market. What's still findable, what's gone, and what SiC/GaN teams need to do right now.
This guide is for: SiC/GaN startup teams and compound semiconductor engineers who need 150mm fab equipment.
Two years ago you could find a good 150mm etch tool on the secondary market, take a few weeks to evaluate options, and negotiate. That market is gone. The shift has been faster than most teams anticipated, and the teams that didn't move early are now paying 30–50% more for fewer choices, or waiting in line for tools that may not materialize.
Here's where things stand in May 2026, and what you should do about it.
Why 150mm Tools Are Disappearing
Three forces are working simultaneously and they don't cancel each other out.
Force 1: The SiC power device boom. Silicon carbide demand for EV inverters, onboard chargers, and industrial motor drives has been substantial. Wolfspeed, Onsemi, STMicroelectronics, Rohm, and a dozen startup fabs have all been building or expanding SiC capacity. The majority of that capacity is on 150mm SiC wafers. Every new or expanded SiC fab pulls tools from the 150mm secondary market and doesn't return them.
Force 2: MEMS, sensors, and IoT on 150mm. Leading-edge silicon moved to 200mm and then 300mm long ago. But MEMS devices, pressure sensors, LIDAR components, and specialty analog chips are still being made on 150mm in volume. These fabs are running their tools hard and not replacing them with 200mm — the device economics don't support the migration.
Force 3: The supply of used 150mm tools is not replenishing. The source of secondary market 150mm tools was silicon fabs upgrading from 150mm to 200mm. That migration largely happened in the 1990s and early 2000s. There's no large pool of silicon fabs still on 150mm that are about to upgrade and release equipment. The supply pipeline is thin.
The result: more buyers, fewer tools, prices that have been climbing steadily for 24+ months.
The Price Trend
150mm equipment price appreciation since early 2024:
| Tool Category | Early 2024 | May 2026 | Change | |---|---|---|---| | Etch mainframe (Lam 4600, AMAT 5200) | $55K–$85K | $80K–$130K | +40–55% | | Ion implant (Varian E500, Extrion) | $90K–$150K | $140K–$220K | +45–55% | | i-line stepper (Canon EX-3, Nikon NSR-1505) | $35K–$65K | $50K–$90K | +35–45% | | LPCVD furnace (Thermco/Tystar) | $25K–$50K | $35K–$65K | +30–40% | | Wet bench / track | $12K–$30K | $18K–$40K | +30–40% | | KLA Surfscan 6200 (150mm) | $20K–$40K | $30K–$55K | +35–45% |
These are not paper price increases. Deals are closing at these levels. The question isn't whether prices are high — it's whether they'll be higher in 6 months. Based on the supply/demand dynamics above, the answer is probably yes.
What's Still Findable
Thermal Diffusion and Furnaces
Horizontal tube furnaces for 150mm — Thermco 7900, Tystar 17000 series, Bruce BDF-6 — are still available, though the quality spread is wide. These are older tools (many are 25+ years old) and condition varies considerably. Budget for a thorough inspection and PM. You can find working units in the $20K–$50K range. Vertical furnaces (TEL ALPHA-6, ASM A400) are tighter but still findable in the $55K–$90K range.
Wet Benches and Clean Room Infrastructure
Wet benches, FSI spinners, CFM scrubbers, and SRD units for 150mm are still available and reasonable. These are not the bottleneck in 150mm sourcing. A complete 150mm wet station can be assembled from used equipment for $30K–$80K depending on chemistry requirements.
Metrology
150mm profilometers, four-point probes, and basic inspection tools (KLA Surfscan 6200, Therma-Wave TP300) are available but pricing has moved up. Buy these early — they're not your primary process tools, but you'll need them from day one.
Contact Lithography
Karl Suss MA6 contact aligners for 150mm are still findable at $12K–$28K. EV Group aligners are similar. For SiC device geometries (typically 2–10 micron features), contact lithography can work for prototyping and early production. This is one of the easier tool categories to source.
What's Already Gone (Or Effectively Gone)
150mm Etch Mainframes in Good Condition
The Lam Research 4600/4500 and AMAT 5200 Precision Etch platforms in running condition have largely been absorbed. You'll still see listings, but "available" increasingly means units that have been sitting in storage, are missing key components, or need $40K–$80K in work before they can process wafers. Units with full documentation, recent PM records, and confirmed working condition are rare and move quickly.
150mm Ion Implant
Varian E500, HVHC, and comparable 150mm implant platforms with high-current or high-voltage capability are effectively gone from the casual secondary market. You'll find them through relationships — brokers who know where the tools are before they're publicly listed — or not at all. When they do appear, pricing has shifted to $160K–$220K+ for a working unit with reasonable documentation. Six months ago, $100K–$140K was more typical.
150mm CMP
Full CMP systems configured for 150mm — Speedfam 22B, IPEC/Westech 372 — in production-ready condition are scarce. The market cleared them. You'll find as-is units periodically, but plan on $25K–$50K in refurbishment before production use.
150mm Steppers With Current Lens and Alignment Systems
i-line steppers work fine for SiC lithography, but there's a difference between a tool that technically works and one that can hold the CD uniformity your process needs. The better-condition 150mm i-line steppers — Canon EX-3 and EX-4, Nikon NSR-1505 — are increasingly snapped up by teams who know what they're doing. What remains tends to be older, higher-mileage units that require more process qualification work.
What Happens If You Wait
6 months: Prices likely 10–20% higher for most categories. Some tool types that are currently scarce become "available only through broker relationships" — meaning if you don't have those relationships, you're bidding on whatever scraps make it to public listings.
12 months: The 200mm SiC wafer transition will have pulled more capital toward 200mm tools. 150mm tools that are still available will skew older and lower condition. The teams that are currently building 150mm pilot lines will have absorbed most of the good inventory.
18–24 months: 150mm compound semiconductor tools will be priced like specialty equipment — because that's what they'll be. The days of finding a 150mm etch tool for $80K are probably behind us. Expect $150K+ for a working unit, if you can find one at all.
This isn't a scare tactic. It's what the supply/demand math looks like from where the secondary market stands today.
What To Do Right Now
Build broker relationships before you have an urgent need. The best 150mm tool deals happen before the equipment is publicly listed. Brokers with long-standing fab relationships know when tools are coming off production. If you're not on those calls, you're competing for what's left after everyone else had first look.
Buy tools before you need them. This runs counter to how most engineering teams think — you want to buy equipment when you're ready to use it. But the 150mm market punishes that approach. If you know you'll need an etch tool in Q4 2026, start sourcing now. Storage costs for a tool you buy 3–6 months early are trivial compared to price appreciation and availability risk.
Don't anchor on 2023 prices. Teams that walked away from deals in 2024 because the price seemed high are now paying more for worse tools. The market moved. Adjust.
Get inspections done quickly. When a good tool comes available, the window to evaluate and commit is 48–72 hours for the best units. Have a trusted inspector you can dispatch on short notice, or develop the internal capability to do remote inspection from videos and documentation.
Consider your 200mm transition timeline. If there's any realistic chance you'll migrate to 200mm SiC wafers within 5 years, model whether a 200mm tool purchase now is better than 150mm tools for your current timeline. The math is less obvious than it appears — 200mm tools cost more, but 150mm tools bought today may not hold their value as the market thins.
FAQ
Q: Are there any 150mm tool categories that aren't price-pressured yet?
A: Yes — wet benches, clean room support equipment (chillers, N2 generators, vacuum pumps), and basic metrology (four-point probes, microscopes). These haven't seen the same appreciation as process tools. If you're fitting out a facility, source these aggressively now while pricing is still reasonable.
Q: What's the typical lead time from "tool found" to "tool running in fab"?
A: For a used 150mm tool in decent condition: 6–12 weeks from purchase to production-ready. That includes: 2–3 weeks for inspection and deal close, 2–3 weeks for shipping, 1–2 weeks for installation and initial bring-up, 2–4 weeks for process qualification. Budget 4–6 months if the tool needs significant refurbishment work.
Q: Is it worth paying for refurbishment vs. buying as-is and doing the PM ourselves?
A: Depends on your team's capabilities and timeline. If you have experienced process engineers who have PM'd these tools before, as-is can work well and save $30K–$60K. If you're a smaller team without that specific tool experience, paying for a known-good refurbished unit reduces risk significantly. The calculus changes for critical path tools — your etch mainframe being down for 6 weeks while you troubleshoot unexpected issues is more expensive than the refurb premium.
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Related Parts
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