Evaluation of P-HEMT MMIC technolohy PH25 for space applications

摘要

The evaluation of the P-HEMT technology PH25 according to the European Space Agency requirments is presented. The reliability assessment plan features high temperature storage tests, DC life-tests and RF life-tests, performed on a set of evaluation test vehicles specifically defined for this purpose. The results of these tests evidence a temperature activated wear-out mechanism, a very low sensitivity of PH25 on strong RF stress and no sensitivity on hydrogen. Failure rates calculations are in the with the space programme requirements.