Temperature sensor for wafer tool

Sun, 28 Jun 2026 06:23:41 +0800

On the fab floor, a half-degree drift on the hot plate doesn’t throw a flag—it throws away a lot. Soft bake and hard bake set the critical dimensions, and the thermal budget isn’t up for debate. We built our wafer-tool temperature sensor for that reality: it measures temperature where the wafer sees it, not just where the heater says it should be. What matters under the hood This sensor was engineered for semiconductor thermal discipline: ±0.1°C uniformity across the process surface, with a response time tuned to settle fast after door open/close events. It runs 24/7 and adds zero particles, staying within cleanroom Class 1–100 without spiking the count. Repeatability holds across thermal cycling, so bake profiles stay consistent lot after lot. The interfaces are production-ready—clean mechanical integration and electrical termination sized for reliability on the line. Why it holds up in litho In lithography bake, this is straight-up yield protection. Tighter soft bake control keeps viscosity and film stress stable; precise hard bake locks critical dimension before etch. The payoff is fewer excursions, less rework, and predictable performance. You also save energy because the control band is tight—less overshoot, less compensating heat. And since it’s built for continuous duty, you don’t pay for unplanned downtime from drift and swap-outs. The install details that make or break it You have to respect thermal mass and positioning. The sensor measures where the wafer experiences temperature, so mounting depth and coupling to the process surface get locked down during tool qualification. Expect a short commissioning window to tune PID and confirm the profile matches the recipe. Once aligned, it performs—as long as you treat the interface as part of the process, not an afterthought.

Tool on Quality IR Heating Lamps

Temperature sensor for wafer tool