Fishing – trapping – and vermin destroying
Patent
1993-05-03
1994-11-08
Chaudhuri, Olik
Fishing, trapping, and vermin destroying
437 48, 437 50, 437192, 437200, H01L 2170, H01L 2700
Patent
active
053626621
ABSTRACT:
A semiconductor memory device includes a substrate, a first diffusion region composed of at least one longitudinal and continuous source region which is disposed on the substrate and commonly used for a plurality of memory transistors, and a second diffusion region composed of at least one longitudinal and continuous drain region which is disposed in parallel with the first diffusion region and commonly used for the plurality of memory transistors. A refractory metal film is disposed on each of the first and second diffusion regions. An electric insulation film is disposed on the refractory metal film. A plurality of parallel gate electrodes are disposed crossing over the first and second diffusion regions. And a gate oxide film is arranged to electrically insulate the gate electrodes from the diffusion regions.
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Ando Yuichi
Sogawa Koichi
Chaudhuri Olik
Ricoh & Company, Ltd.
Tsai H. Jey
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