Monolithic Memories, Inc. (MMI) produced bipolar

Bipolar

-Medicine:* Bipolar cell* Bipolar cell of the retina* Bipolar disorder** Bipolar I disorder** Bipolar II disorder** Bipolar NOS* Bipolar spectrum-Astronomy:* Bipolar nebula, a two-lobed, axially symmetric nebula...

 PROMs, programmable logic device

Programmable logic device

A programmable logic device or PLD is an electronic component used to build reconfigurable digital circuits. Unlike a logic gate, which has a fixed function, a PLD has an undefined function at the time of manufacture...

s, and logic circuits (including 7400 series TTL).

A team of MMI engineers,under the direction of Ze'ev Drori and headed by John Birkner and H. T. Chua, invented the class of devices known as Programmable Array Logic

Programmable Array Logic

The term Programmable Array Logic is used to describe a family of programmable logic device semiconductors used to implement logic functions in digital circuits introduced by Monolithic Memories, Inc. in March 1978. MMI obtained a registered trademark on the term PAL for use in "Programmable...

 (PAL).

MMI was founded in 1969 by former Fairchild Semiconductor

Fairchild Semiconductor

Fairchild Semiconductor International, Inc. is an American semiconductor company based in San Jose, California. Founded in 1957, it was a pioneer in transistor and integrated circuit manufacturing...

 engineer Ze'ev Drori

Ze'ev Drori

Ze'ev Drori is an Israeli-born American technology entrepreneur currently residing in California. Mr. Drori was the founder and Chief Executive of Monolithic Memories, before the company merged with Advanced Micro Devices...

, later the President and CEO of Tesla Motors

Tesla Motors

Tesla Motors, Inc. is a Silicon Valley-based company that designs, manufactures and sells electric cars and electric vehicle powertrain components. It was the only automaker building and selling a zero-emission sports car, the Tesla Roadster, in serial production...

. MMI was acquired by Advanced Micro Devices (AMD) in 1987, though AMD later spun off their programmable logic division as Vantis, which was then acquired by Lattice Semiconductor

Lattice Semiconductor

Lattice Semiconductor Corporation is a United States based manufacturer of high-performance programmable logic devices . Founded in 1983, the company employs about 700 people and has annual revenues of around $300 million, with Darin Billerbeck as the chief executive officer...

.