8. август 2026.

Your reflow oven display lies to you. The numbers on the panel are just targets—what actually matters is the temperature your boards experience through each zone of the thermal profile. This guide walks through how to build profiles that work, with practical steps for SAC305 lead-free soldering, thermocouple placement tips, and the iteration process that separates high first-pass yield shops from constant rework chasers.

When AOI flags start lighting up with BGA voids, tombstoning, and poor wetting, the culprit is often the reflow oven. This guide walks through configuring temperature zones, dialing in lead-free profiles, calculating cycle times, and optimizing for BGAs and QFNs. Practical steps for production managers and process engineers to hit first-pass yields above 95%.