Gate arrays discontinued by AppliedMicro to be offered by aftermarket specialist Rochester Electronics

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NEWBURYPORT, Mass., 1 April 2011. Rochester Electronics in Newburyport, Mass., an authorized manufacturer and distributor of end-of-life and mature semiconductors, is offering gate array semiconductors from Applied Micro Circuits Corp. (AppliedMicro) in Sunnyvale, Calif., including five technology nodes and 500 designs.

Rochester's electronics aftermarket production of these components, which is authorized by AppliedMicro, is through semiconductor replication and continuing manufacture, Rochester officials say.

Rochester has re-created and manufactured the largest and most complicated device in the AppliedMicro Q20000 series -- the Q20M100 0.6-micron bipolar emitter-coupled logic (ECL)/transistor-transistor logic (TTL) gate-array. The Q20000 family comprises nine products with densities ranging from 450 to 18,777 equivalent gates -- including structured arrays with 1.25 GHz phase-locked loops (PLLs). The Q20000 family is for military, aerospace, industrial, and commercial, applications.

Rochester is also authorized to re-create and manufacture the AppliedMicro Q14000 series BiCMOS logic arrays, Q5000 series ECL/TTL logic arrays, Q1500 series logic arrays, and the Q700 series logic arrays. These devices had been manufactured in AppliedMicro's Wilmington, Mass., facility before the company discontinued their manufacture.

Rochester engineers use complex reverse-engineering techniques to recreate the device and provide a replacement that matches the original semiconductor’s physical features, layer by layer and pin for pin, and is guaranteed to perform exactly as the AppliedMicro original,” says Paul Gerrish, co-president at Rochester Electronics.

“With our authorization and IP, Rochester Electronics will continue to manufacture these parts for as long as they are needed," says Alan Sorgi, director of IP portfolio management at AppliedMicro.

For more information contact Rochester Electronics online at, or AppliedMicro at

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