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Read disturb errors in a CMOS static RAM chipResults are reported from an extensive investigation into pattern-sensitive soft errors (read disturb errors) in the TCC244 CMOS static RAM chip. The TCC244, also known as the SA2838, is a radiation-hard single-event-upset-resistant 4 x 256 memory chip. This device is being used by the Jet Propulsion Laboratory in the Galileo and Magellan spacecraft, which will have encounters with Jupiter and Venus, respectively. Two aspects of the part's design are shown to result in the occurrence of read disturb errors: the transparence of the signal path from the address pins to the array of cells, and the large resistance in the Vdd and Vss lines of the cells in the center of the array. Probe measurements taken during a read disturb failure illustrate how address skews and the data pattern in the chip combine to produce a bit flip. A capacitive charge pump formed by the individual cell capacitances and the resistance in the supply lines pumps down both the internal cell voltage and the local supply voltage until a bit flip occurs.
Document ID
19900064013
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wood, Steven H.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Marr, James C., IV
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Nguyen, Tien T.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Padgett, Dwayne J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Tran, Joe C.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Griswold, Thomas W.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lebowitz, Daniel C.
(JPL Pasadena, CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Electronics And Electrical Engineering
Meeting Information
Meeting: 1989 IEEE Aerospace Applications Conference
Location: Breckenridge, CO
Country: United States
Start Date: February 12, 1989
End Date: February 17, 1989
Sponsors: IEEE
Accession Number
90A51068
Distribution Limits
Public
Copyright
Other

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