关键词: 工装, 筛选试验, 热膨胀系数

Abstract: There are different degrees of cracks in the bare chip inside the shell of the microwave component. The mechanisms of the process materials, tooling design, assembly process and test process of the microwave module are analyzed one by one, and finds out the real reason for the cracking of the bare chip inside the microwave module. The structure similar to the microwave module and the control points in the test and installation are put forward.

Key words: fixture, screeningtest, coefficientofthermalexpansion