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James Lang Buie Edit Profile

electronics consultant

James Lang Buie, American electronics consultant. Decorated Distinguished Flying Cross, 4 Air medals. Lieutenant Commander United States Navy, 1940-1945, PTO. Fellow Institute of Electrical and Electronics Engineers; member Eta Kappa Nu, Tau Beta Pi.


Buie, James Lang was born on February 21, 1920 in Los Angeles, California, United States. Son of Claude Lang and Agnes Olive Amelia (Mitchell) Buie.


Bachelor of Electrical Engineering, University of California at Los Angeles, 1949.


This led to the beginning of the integrated circuit industry. He served in World War II as an airplane pilot and became a lieutenant commander during his service. Buie was an electrical engineering graduate of University of Southern California receiving a BSEE in 1950.

Buie's first job was at Pacific Semiconductors (PSI) in Culver City, California in 1951. He worked on transistor circuitry as related to diodes and resistors. He was next employed by Ramo-Woolridge Corporation in 1954.

Ramo-Woolridge joined with Thompson Automotive Group in 1958 and eventually Thompson-Ramo-Woolridge became known as TRW Inc. Buie was a senior scientist and one of the organizers for TRW's Microelectronics Center that formed in 1963. He headed TRW's large scale integration LSI Products Division in 1977.

Buie invented transistor-to-transistor logic circuitry ("TTL") in 1961 leading to the development of the integrated circuit industry. Buie's technology technique was originally known as transistor-coupled transistor logic – TCTL. The TTL electronics invented by Buie became the electronics industry standard for two decades. The first commercial integrated circuit products using the TTL technology were made by Sylvania in 1963 and known as the Sylvania Universal High-Level Logic family.

Texas Instruments introduced integrated circuits for military applications in 1964. Buie's technology pioneered the development of microelectronics for man-made satellites used in space for the aerospace industry. The integrated circuit technology was used extensively in the 1970s and 1980s in computers, communications, and military equipment.

TRW licensed the new technology to other companies to use in data processing and communications electronics. The TTL integrated circuit technology is still used in the electronics industry today. His innovations in microelectronics included dielectrically isolated integrated circuits, single-chip parallel multipliers, single-chip analog-to-digital converters, and triple-diffused bipolar devices.

Some of his inventions are as follows:Temperature-compensated direct current transistor amplifier US 2867695 A – Apr 12, 1954Compound transistor US 2985804 A – Filing date Feb 8, 1960, Publication date May 23, 1961Coupling transistor logic and other circuits US 3283170 A – Filing date Sep 8, 1961, Publication date Nov 1, 1966Buie transistor technology patent continuation of Transistor Technology US 3233125 A – Filing date Apr 23, 1963Electrode lead for semiconductor active devices US 3475665 A – Filing date Aug 3, 1966Process of manufacture of semiconductor product US 3768157 A – Filing date 31 Mar 1971Other patents of Buie are "Bipolar transistor construction method" (# 3981072 of 12/6/1974) and "Read-only memory construction and related method" (#4546456 of 6/8/1983). Buie was elected a fellow of the Institute of Electrical and Electronics Engineers in 1973. Buie retired from TRW in 1983.

He died in Panorama City September 25, 1988, from emphysema.


  • Buie was awarded the United States Distinguished Flying Cross in World War II for action during May 26–31, 1944.


Lieutenant Commander United States Navy, 1940-1945, PTO. Fellow Institute of Electrical and Electronics Engineers. Member Eta Kappa Nu, Tau Beta Pi.


Married Esther Ione Winey, May 29, 1941. Children: Janet Lynn Buie Reasoner, John Wesley.

Claude Lang Buie

Agnes Olive Amelia (Mitchell) Buie

Esther Ione Winey

Janet Lynn Buie Reasoner Buie

John Wesley Buie