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Evaluation of Soft-Error Immunity for 1-V CMOS Memory Cells with MTCMOS Technology

Takakuni DOUSEKI, Shin'ichiro MUTOH, Takemi UEKI, Junzo YAMADA

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Summary :

Soft-error immunity of a 1-V operating CMOS memory cell is described. To evaluate the immunity precisely at the supply voltage of 1 V, a multi-threshold CMOS (MTCMOS) memory scheme, which has a peripheral circuit combining low-threshold CMOS logic gates and high-threshold MOSFETs with a virtual supply line, is adopted as a test structure. A 1-kb memory was designed and fabricated with 0.5-µm MTCMOS technology and the soft-error immunity of the memory cells was evaluated. The results of an alpha-particle exposure test and a pulse laser test show that a full-CMOS memory cell has high immunity at 1-V operations.

Publication
IEICE TRANSACTIONS on Electronics Vol.E79-C No.2 pp.179-184
Publication Date
1996/02/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Microelectronic Test Structures)
Category
Device and Circuit Characterization

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