Device for preventing antenna effect on circuit

Fishing – trapping – and vermin destroying

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437 47, 437 60, 437195, 156643, H01L 2114

Patent

active

053507100

ABSTRACT:
A multi-level conductive interconnection for an integrated circuit with an antifuse device is formed, in and on a silicon substrate, wherein there are large contact pad areas at the periphery of the interconnection. The antifuse device is formed from a thin dielectric between a first and second conductor and is connected to the integrated circuit, and is also connected to a ground reference through a silicon junction in the substrate. The large contact pad area is formed with a layer of metal, and is connected to the integrated circuit through the antifuse device, wherein the antifuse device electrically isolates the contact pad and the integrated circuit to prevent charge build-up during subsequent processing. There is further processing in a plasma environment that would normally produce electrical charge build-up at the gate oxide of the integrated circuit, but wherein the antifuse device prevents charge build-up. A voltage is applied to the antifuse device to create a low impedance element, and formation of the integrated circuit is completed.

REFERENCES:
patent: 5070384 (1991-12-01), McCollum et al.
patent: 5100827 (1992-03-01), Lytle
patent: 5111262 (1992-05-01), Chem et al.
patent: 5270251 (1993-12-01), Cohen

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