Fishing – trapping – and vermin destroying
Patent
1992-09-25
1994-02-08
Chaudhuri, Olik
Fishing, trapping, and vermin destroying
437170, 437922, 148 55, 148DIG55, H01L 2170, H01L 2700
Patent
active
052847888
ABSTRACT:
A device (10) for controlling current through a circuit has an antifuse material (18) separating a first conductor (12) and a second conductor (20). An insulating element (14) and another insulating element (16) further separate the first conductor (12) from the second conductor (20). The antifuse material (18) includes a dopant which raises the band gap and seals off paths in grain boundaries of the antifuse material (18) in order to limit leakage current from flowing between the first conductor (12) and the second conductor (20). When an interconnection is desired, a high voltage pulse is applied across the first conductor (12) and the second conductor (20) to initially break down the antifuse material (18). The breakdown of the antifuse material (18) causes a filament (22) to form between the first conductor (12) and the second conductor (20). The filament (22) creates a conduction path connecting the first conductor (12) and the second conductor (20) electrically together. Additional current is forced through the antifuse material (18) to permanently set the filament (22) in order to interconnect circuit elements coupled to the first conductor (12) and the second conductor (20).
REFERENCES:
patent: 4133704 (1979-01-01), MacIver et al.
patent: 4499557 (1985-02-01), Holmberg et al.
patent: 4569121 (1986-02-01), Lim
patent: 5087589 (1992-02-01), Chapman et al.
patent: 5093711 (1992-03-01), Hirakawa
"Properties of High Heat-Resistance .mu.c-SiC.sub.x :H Emitter Silicon HBT's", Mamoru Kuwagaki, Kazuo Imai, and Yoshihito Amemiya, Japanese Journal of Applied Phyics, May, 1989, pp. L754-L756.
Chen Kueing-Long
Spratt David B.
Chaudhuri Olik
Donaldson Richard L.
Maginniss Christopher L.
Texas Instruments Incorporated
Tsai H. Jey
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