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Title: Thirty megarad CMOS gate array for spacecraft applications

Journal Article · · IEEE Trans. Nucl. Sci.; (United States)

The recent development, testing, qualification and integration for spacecraft applications of a general purpose, 30 Megarad-hard, CMOS logic gate array having 3000 transistors is reported. Fabricated on the National Semiconductor, Inc. class S radation-hard line, the gate array operates at >3 MHz (10V) after 10/sup 7/ rad(Si) total dose from a Co/sup 60/ source. The threshold voltage change is 0.2 volts (0.5 volts) for the n-channel (p-channel) devices under 10V bias conditions. The rad-hard process of the CDI gate array family is mask compatible with the conventional process for cost effective semicustom design. The rad-hard array is presently operating in-orbit on the AMPTE satellite and is planned for instruments to be flown on the CRRES and UARS satellites.

Research Organization:
Lockheed Palo Alto Research Laboratory, Palo Alto, CA 94304
OSTI ID:
5865631
Journal Information:
IEEE Trans. Nucl. Sci.; (United States), Vol. NS-31:6
Country of Publication:
United States
Language:
English