Soong Too Lee

US Patent:

49511238, Aug 21, 1990

Filed:

Sep 30, 1988

Appl. No.:

7/252234

Inventors:

Soong H. Lee - Potomac MD
Chun L. Lau - Colorado Springs CO
Daniel C. Buck - Hanover MD
Dale E. Dawson - Glen Burnie MD

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H01L 2302

US Classification:

357 81

Abstract:

The invention is an improved integrated circuit chip assembly which provides enhanced heat transfer from active electronic devices of the integrated circuit by significantly reducing the thickness of the substrate and providing the necessary structural support through a thermally conducting spacing segment between the substrate and a ground plane in the region of the active electronic devices. This improvement further permits added flexibility in the design of transmission lines by permitting adjustment of the distance between the transmission line and the ground plane and furthermore by permitting the introduction of a second dielectric material such that the impedance of the transmission line may be controlled.

US Patent:

46382690, Jan 20, 1987

Filed:

May 28, 1985

Appl. No.:

6/738794

Inventors:

Dale E. Dawson - Glen Burnie MD
Anthony L. Conti - Baltimore MD
Soong H. Lee - Rockville MD
Gary F. Shade - Colorado Springs CO
Lawrence E. Dickens - Colorado Springs CO

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H01P 1185

US Classification:

333164

Abstract:

A reflective hybrid analog phase shifter is detailed which is operable in the X-band, and which exhibits minimal phase shift variation with higher power loadings. A pair of back-to-back connected Schottky varactor diodes are serially connected to each of the phase shifting ports of a 3 dB coupler. The Scottky varactor diodes are reverse biased to permit continuous variation of the phase shift as a function of analog bias potential. A monolithically fabricated implementation of this circuit design is detailed.