Fishing – trapping – and vermin destroying
Patent
1992-09-24
1994-12-27
Thomas, Tom
Fishing, trapping, and vermin destroying
437 47, 437 60, 437203, 437919, H01L 2170
Patent
active
053765753
ABSTRACT:
A DRAM having a vertical transistor of a highly integrated semiconductor device and its manufacturing method are disclosed. A DRAM has a silicon substrate, a word line formed in a silicon substrate, a gate oxide layer formed on the side wall of the word line, a bit line junction region formed on the bottom of a silicon substrate, a bit line that is connected to the a bit line junction region and is insulated from the word line via a first insulating layer, a charge storage electrode junction region formed near the bottom of silicon substrate surface, a pad polysilicon layer that is insulated from the a word line via a second insulating layer and is connected at the top of a charge storage electrode diffusion region, and a charge storage electrode that is connected to the pad polysilicon layer through a contact. Accordingly, a channel region is formed on a silicon substrate positioned on the side wall of a word line by applying the voltage to the word line and thus a signal transmitter is mutually transferred from the bit line to the charge storage electrode.
REFERENCES:
patent: 4672410 (1987-06-01), Miara et al.
patent: 4689871 (1987-09-01), Malhi
Choi Chung G.
Kim Jong S.
Yoon Hee-Koo
Hyundai Electronics Industries Inc.
Thomas Tom
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