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O2Micro receives U.S patent for circuit trimming method

Posted: 08 Nov 2002 ?? ?Print Version ?Bookmark and Share

Keywords:semiconductor process method? power management ic? security ic? mobile computer? precision trimming method?

O2Micro Int. Ltd, a supplier of power management and security ICs to mobile computer and communications manufacturers, has obtained 16 claims under U.S. patent number 6,472,897 for its Precision Trimming Method, also referred to as DigitalLaserTrim, for ICs.

"DigitalLaserTrim is a key breakthrough in semiconductor process methods," stated Sterling Du, chairman and CEO of O2Micro. "This patent enables post packaging precision trimming of analog and mixed-signal semiconductors, and avoids the associated penalties in lead-count and added device size experienced by other industry methods."

This patented methodology is currently implemented in O2Micro's dc/dc power control, battery cell balancing, and battery charging devices; and also applies to mixed-signal data converters, waveform generators, precision dc output circuits, precision comparators, and many other basic circuits used as core building blocks across our product line.

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