From 8 manufacturers, 21 CMOC-IC variants were tested under 7 test conditions, each device being tested for 2000 hours. The failures recorded numbered 38, of which 22 are catastrophic, 8 are degradational, and 8 of a temporary nature. Variants were 10 of the 4011A type and 11 of the 4013 A type; 16 were plastic moulded versions and 5 were ceramic encapsulated. The effects of the various tests on
... [Show full abstract] the performance, reliability, and transient accessitivity are discussed. Temperature, humidity, and biasing voltages effects are highlighted.