Method of making a semiconductor memory device

Details Method of making a semiconductor memory device Method of making a semiconductor memory device

1990-11-21

1991-12-10

Hearn, Brian E.

Fishing, trapping, and vermin destroying

437 60, 437186, 437919, H01L 2172

Patent

active

050717847

ABSTRACT:
A semiconductor memory device includes a memory cell array comprised of a plurality of memory cells each having a single transfer transistor and a single capacitor and a peripheral circuit including a plurality of drive transistors and adapted to drive the memory cell. The source and drain regions of the transfer transistor have an impurity concentration lower in level than that of the source and drain regions of the drive transistor.

REFERENCES:
patent: 4350536 (1982-09-01), Nakano et al.
patent: 4409259 (1983-10-01), Bohr et al.
patent: 4441249 (1984-04-01), Alspector et al.
patent: 4466177 (1984-08-01), Chao

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