2.5D/3D IC packaging heater

Sun, 21 Jun 2026 05:53:11 +0800

On the line, 2.5D/3D IC packaging doesn’t leave you any room to chase thermal drift. One hotspot during underfill cure, TIM die attach, or microbump reflow can wipe out a stack that cost months of yield learning. We built our 2.5D/3D IC packaging heater to take that variable off the table. What matters under the hood You get wafer-level thermal uniformity of ±0.1°C across the active zone, and setpoint repeatability that keeps the same thermal budget, hour after hour. Short-wave infrared elements give you fast, clean response, while a quartz-isolated heating zone keeps particle generation low. It’s compatible with Class 1–100 cleanrooms, with surfaces and seals chosen to hold particle counts down during long bakes. Control is closed-loop, traceable, and engineered for photoresist soft bake and hard bake profiles, plus advanced packaging thermal steps. Why it holds up in production You see consistent bake profiles across the wafer and across tools, which translates into stable overlay, fewer defects, and predictable cycle times. The heater spools up quickly and holds steady, so idle stabilization drops and energy use per lot comes down. Reliability is built around 24/7 operation, with components rated for sustained high-temperature duty and maintenance planned around scheduled downtime, not surprise stops. Here is the thing on integration. The heater drops in cleanly, but it needs a dedicated power feed and verified coolant/gas connections. Mismatched fittings or undersized lines will cap performance. Plan the mechanical envelope early — thermal clearance to adjacent fixtures is tight, and airflow has to stay unrestricted to keep the stated uniformity. Once you get it aligned, the system behaves like a fixed process constant, not another variable to chase.

IC on Infrared Heat Limited

2.5D/3D IC packaging heater