Planar Monolithics Industries has announced that a patent has been issued; patent No. 10,084,054 on September 25, 2018 "Field Effect Transistor which can be biased to achieve a uniform depletion region" by our consultant and advisor Dr. Alfred Grayzel has been received and the USPTO has published the application electronically Patent Publication No. US-2018-0204925-A1. A copy of the application is available on the PMI website at  This new FET eliminates pinchoff and is therefore considerably more efficient than the current art.


About the Author

Alfred I. Grayzel (M'55- SM'85-LM '92) was born in Brooklyn N.Y. in May 24, 1933. He received a B.A. from Columbia College in N.Y.C. in 1954 and a B.S.E.E. from the Columbia School of engineering in 1955. He received an M. S. E.E. and a Ph.D. in electrical engineering from M.I.T. in 1961 and 1963. He spent 17 years of his career at M.I.T. 's Lincoln Laboratory as a staff member. In 1975 he founded A.I. Grayzel Inc. which manufactured unconditionally stable varactor frequency multipliers and up-converters. The company was acquired by the Anzac Corporation in 1985. He is currently a consultant to PMI, USA.