Forum: Reliability & Maintainability Questions and Answers
Topic: Reliability & Maintainability Questions and AnswersTopic Posted by: Reliability & Maintainability Forum (email@example.com )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998
Original Message:Posted by: Ed Takacs (firstname.lastname@example.org )
Date posted: Mon Nov 19 18:45:49 US/Eastern 2001
Subject: Power GaAs FET and LDMOS FET failure rate prediction
I am trying to determine the part reliability rate for LDMOS FETs-operating at L band and 60 Watts per FET (Tchannel<125°C)and Power GaAs FETs (operating about 4 Watts) with Tchannel also < 125 °C. MIL 217F calculates failure rates much higher than expected-(ie way out, unrealistic) I am looking for guidance-either a study, or manufacturers ap note or anything else- to determine a realistic part failure rate for the LDMOS and Power GaAs FET's. Thanks in advance for your help.