Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1991-04-30
1994-08-02
Hille, Rolf
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
257 50, 307465, 365148, 365154, 365205, 3652257, G11C 1134, G11C 1140, G11C 700, H01L 2904
Patent
active
053348800
ABSTRACT:
A programmable storage element for redundancy-programming includes a programmable antifuse circuit, which includes a plurality of first resistors and a switching circuit for coupling the first resistors in series in response to a plurality of first control signals and for coupling the first resistors in parallel in response to a plurality of second control signals to permit programming of the first resistors, and a sensing circuit for determining whether or not the first resistors have been programmed. The state of the first resistors is determined by comparing a first voltage drop across the first resistors with a second voltage drop across a second resistor. Each of the first resistors is an unsilicided polysilicon conductor which has an irreversible resistance decrease when a predetermined threshold current is applied for a minimum period of time.
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Abadeer Wagdi W.
El-Kareh Badih
Ellis Wayne F.
Galbi Duane E.
Hiltebeitel Nathan R.
Brown Peter Toby
Hille Rolf
International Business Machines - Corporation
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