International Business Machines Corporation

Allen W Brouillette

Richard James Evans

Robert J Finch

Gordon M Babson

Richard J Ross

Philip H Noel

Paul Davis Bell

Richard W Wasielewski

Todd McMullin

Glenn L Bomberger

A method and apparatus for reducing the risk of environmental contamination from mercury spillage during carry over between processing tanks during the gold ball bond removal process by providing a self-contained, compact, environmentally safe system for use with toxic chemicals and liquids. The present invention provides a self-contained, integrally molded enclosure upper and lower chambers separated by a partition. The partition has a plurality of stations integrally formed therein, each of which is capable of containing a chemical liquid. The method comprises dipping a slide containing the semiconductor chip first into a toxic liquid, then into a first decontamination station and finally into a second decontamination station.

Mercury process gold ballbond removal apparatus

A process and structure are disclosed for a programmable array for use in a read-only memory comprising diode elements and shorted diode elements. The elements are connected across bit and wordlines. The invention utilizes lateral polysilicon diodes and metal silicide layer bridging the junction of pre-selected diodes to short pre-selected diode elements. Programming is accomplished by either forming the silicide layer across the junctions of pre-selected diodes or removing the silicide layer from the junctions of pre-selected diodes.

ROM storage cell and method of fabrication

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Underhill, VT, United States of America

Allen W Brouillette