North American Company Profiles - Smithsonian - The Chip Collection

Allegro MicroSystems North American Company Profiles
Allegro exited the discrete market in December 1996 and sold its inventory of discrete semiconductor diodes and
transistors. In recent years, sales of discrete products has represented about 6 percent of Allegro’s total
revenues.
The semiconductor processes used by Allegro range from standard bipolar to CMOS, power DMOS (doublediffused
MOS), and combinations of all of them.
Semiconductor Fabrication Facilities
Allegro MicroSystems, Inc. Allegro MicroSystems, Inc.
115 Northeast Cutoff 3900 Welsh Grove Road
Worcester, Massachusetts 01615-0036 Willow Grove, Pennsylvania 19090
Cleanroom size: 20,000 square feet Cleanroom size: 15,000 square feet
Capacity (wafers/week): 5,000 Capacity (wafers/week): 3,000
Wafer size: 100mm Wafer size: 100mm
Processes: Bipolar, CMOS, BiCMOS, DMOS Processes: Bipolar, CMOS, BiCMOS, DMOS
Products: Power and smart power ICs, Products: Power and smart power ICs,
signal processing ICs, sensors ASICs (mixed-signal), sensors
Feature sizes: 1.5μm-8.0μm Feature sizes: 1.5μm-8.0μm
Allegro plans to invest $80 million to expand wafer capacity at its Worcester fab facility. A 150mm wafer line will be
added to support 1.5μm production of its power and smart power ICs and sensor products. Allegro is also
planning to double the capacity at its Willow Grove facility.
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INTEGRATED CIRCUIT ENGINEERING CORPORATION