Semiconductor device

Details Semiconductor device Semiconductor device

1981-06-17

1984-11-06

Edlow, Martin H.

Static information storage and retrieval

Magnetic bubbles

Guide structure

357 29, 357 41, 357 23, 357 52, 357 49, 357 72, 365149, H01L 2504, H01L 2328, H01L 2934, H01L 2712

Patent

active

044815263

ABSTRACT:
A semiconductor device comprising memory circuits coated with a resinous film for shielding these circuits from the radioactive rays formed in substrate material. The resinous film is divided into a plurality of portions which are separated from one another and further coats at least memory cells and sense amplifiers. In one of the embodiments a part of the resinous film is removed at the portion of the chip other than said memory cells and sense amplifiers.

REFERENCES:
Kulow et al., IBM Tech. Dis. Bull., vol. 22, No. 12, May 1980, pp. 5367-5368, "Enhanced . . . Process".
Electronics, Sep. 25, 1980, pp. 39-40, Posa, ed.
IBM Tech. Disc. Bull., vol. 22, No. 4, Sep. 1979, p. 1398, W. C. Ward, "Alpha particle shield".
Electronics, Sep. 11, 1980, pp. 41-42.
Electronics, Jun. 8, 1978, pp. 42-43.
Electronics, Jul. 31, 1980, pp. 103-106, Katto et al.
Electronics, Jul. 31, 1980, p. 33.
IBM Technical Disclosure Bulletin, vol. 22, No. 4, Sep. 1979, pp. 1460-1461, New York (USA); J. A. Brody et al.: "Storage and logic errors in dynamic memory devices due to innate radio-active materials in packaging and wafer", EPC Search Report dated Mar. 30, 1984.

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