1
Cohen Melvin Irwin, Weick Walter Werner, West John Wesley: Laser machining method and apparatus. Bell Telephone Laboratories Incorporated, November 23, 1971: US3622742 (24 worldwide citation)

Thin film integrated circuits are formed by coating insulative substrates with conductive film and mounting them on the periphery of a rotating drum. As the drum rotates, a switched laser machines the circuit pattern by vaporizing parts of the metal film of successive substrates. Light from another ...


2
Maggs Charles, Weick Walter Werner: Methods for making electronic circuits. Bell Telephone Laboratories Incorporated, Anderson R B, February 18, 1975: US3867217 (20 worldwide citation)

In a technique for forming thin-film circuits by laser machining, the gold conductor layer is first covered with a copper protective layer. After machining, the laser-machined gaps are cleaned by a fluid stream containing abrasive particles, during which operation the protective layer shields the go ...


3
Feldman Martin, Rousseau Denis Lawrence, Sinclair William Robert, Weick Walter Werner: Pattern delineation method and product so produced. Bell Telephone Laboratories Incorporated, Indig G S, December 2, 1975: US3924093 (11 worldwide citation)

Supported photomasks useful in the fabrication of printed circuitry are produced by laser machining of amorphous iron oxide film blanks. Resolution improvement relative to that obtained by use of other film materials is ascribed to crystallization of film regions bordering those which are volatilize ...


4
Dapkus Paul Daniel, Dixon Richard Wayne, Weick Walter Werner: Monolithic led displays. Bell Telephone Laboratories Incorporated, Wilde P V D, August 19, 1975: US3900864 (10 worldwide citation)

The specification describes a process for defining the active-display regions in a monolithic electroluminescent display device. According to the process, the emitting regions of a semiconductor chip are electrically and optically isolated from the rest of the chip by laser machining. The chip remai ...