Electrically isolated metal mask programming using a polysilicon

Details Electrically isolated metal mask programming using a polysilicon Electrically isolated metal mask programming using a polysilicon

1992-03-09

1994-04-12

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455343, 257529, 337297, 3072021, 34082584, H01H 8504, H01H 3776

Patent

active

053034023

ABSTRACT:
A radio receiver has a receiver section (103) that receives an information signal and an integrated circuit (105) in which a default operating condition of an electronic device is selectively programmed. A mask option programming link in the integrated circuit (105) is programmed while maintaining electrical isolation of a programming bias from the electronic device (207). The mask option programming link has a first conductor (211) in a first layer with first (212) and second (213) programming contact terminals. A second conductor (210) that determines a default operating condition of the electronic device (207), resides in a second layer that is electrically isolated from the first layer. When sufficient programming bias is applied to the programming terminals of the first conductor (211), energy dissipated by the first conductor eliminates coupling of the second conductor (210) to the electronic device (207), changing its default operating condition.

REFERENCES:
patent: 3763454 (1973-10-01), Zandonatti
patent: 4210875 (1980-07-01), Beasom
patent: 4272753 (1981-06-01), Nicolay
patent: 4426658 (1984-01-01), Gontowski, Jr.
patent: 4984054 (1991-01-01), Yamada et al.
patent: 5025298 (1991-06-01), Fay et al.
patent: 5041897 (1991-08-01), Machida et al.
patent: 5086331 (1992-02-01), Hartgring et al.

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