Fishing – trapping – and vermin destroying
Patent
1989-09-26
1990-12-25
Hearn, Brian E.
Fishing, trapping, and vermin destroying
437 38, 437 47, 437 60, 437203, 437919, H01L 2170
Patent
active
049803107
ABSTRACT:
A dynamic semiconductor memory device comprising a substrate having one trench including two capacitors for memory cell capacitances of two bits, and two elements such as transistors for reading, writing, and storing information represented by charge, arranged symmetrically at the central portion of the trench so as to correspond to the memory cells for two bits, and a field oxide film formed at the center of the trench on the bottom and on the side walls for separating the capacitors and elements.
REFERENCES:
patent: 4369564 (1983-01-01), Hiltpold
"Subthreshold Conduction in MOSFET's ", Geoffrey W. Taylor, IEEE Transactions on Electron Devices, vol. ED-26, No. 3, Mar. 1978.
Fujishima Kazuyasu
Matsuda Yoshio
Hearn Brian E.
Mitsubishi Denki & Kabushiki Kaisha
Thomas T.
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