Isy Haas *57

Isy died June 24, 2023, in Tempe, Ariz.

He was born June 18, 1934, in Istanbul to Polish Jewish parents. After undergraduate work at Robert College in Istanbul, Isy came to the United States. At Princeton, he earned an MSE in electrical engineering in 1957, working under George Warfield.

After a summer working at IBM, Isy became interested in computers and accepted a job at Remington Rand Univac, working on positive-gap diodes. Moving to California, he went to Fairchild Camera and Instrument (later Fairchild Semiconductor), where he developed Avalanche switching and wrote papers on four-layer diodes. Calling himself a “cynical circuit designer,” Isy preferred evaluating devices.

He joined Amelco (eventually incorporated into Teledyne Technologies), where he designed and evaluated integrated circuits and became knowledgeable in many aspects of design and evaluation. He worked with Lionel Kattner on diffusion, and they evolved a proof of principle for diffused isolation. After leaving Amelco, Isy worked on MOS devices for General Instrument Corp. Eventually deciding that he wanted to be his own boss, Isy went into consulting, taking up what he liked best and did best: developing integrated circuits of all kinds.

Isy is survived by his wife, Lynda, and daughter Ilana.

Graduate alumni memorials are prepared by the APGA.