System for ensuring reproducible thermal test conditions in loading tests - carried out on power semiconductors using cooling body with closed cooling system also fixings and contacts between semiconductors and cooling body

摘要

A contact surface (KF) of the cooling body (KK) designed as a tank (W), contains distilled water as the contact, with reducing surface tension. A capillary active material is added to the distilled water for lowering the surface tension. The contact surface (KF) of the tank (W) of the cooling body (KK) is constructed with slots (N). ADVANTAGE - Maintains transition resistance between semiconductor being tested and cooling body. Provides constant equal conditions so that only small uncritical pressure force of unit under test at cooling body is required. Reduces cost and wear at contact surface, with series load testing.