O2Micro Receives Industry Leading Patent

O2Micro Receives Industry Leading Patent for Precision Circuit Trimming Method

Tuesday November 5, 8:33 am ET


SANTA CLARA, Calif. & GEORGE TOWN, Grand Cayman--(BUSINESS WIRE)--Nov. 5, 2002--O2Micro® International Limited (Nasdaq:OIIM - News), a leading supplier of innovative power management and security ICs to mobile computer and communications manufacturers, was granted 16 claims under United States patent number 6,472,897 for its Precision Trimming Method, also referred to as DigitalLaserTrim(TM), for integrated circuits.

"DigitalLaserTrim(TM) 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.


Benefits of this post packaging trimming methodology include:


Elimination of high voltage trim signal

Avoidance of problems associated with wafer level trimming methodology

Elimination of the need for dedicated trim leads

O2Micro's vice president of engineering, Alex Hartular, adds, "O2Micro's patented post packaging trimming method provides customers with a high precision semiconductor without the need for additional leads, resulting in a potentially smaller package size for a given precision circuit."


About O2Micro


Founded in April 1995, O2Micro designs, develops and markets innovative power management and security components for mobile communication, computer, information appliance, and LCD products. Products include AudioDJ®, SmartCardBus® for secure on line e-commerce, Intelligent Inverter® and Battery Management IC's.


O2Micro International maintains an extensive portfolio of intellectual property with 831 patent claims granted, and over 3100 more pending. The company maintains offices worldwide. Additional company and product information can be found on the company website at www.o2micro.com.


Statements made in this release that are not historical, including statements regarding O2Micro's or management's intentions, hopes, beliefs, expectations, representations, projections, plans or predictions of the future, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements involve risks and uncertainties that may cause actual results to differ materially from those set forth in these statements. Factors that could cause actual results to differ materially include risks and uncertainties such as reduced demand for products of electronic equipment manufacturers which include O2Micro's products due to adverse economic conditions in general or specifically affecting O2Micro's markets, technical difficulties and delays in the development process, and errors in the products. You are also referred to the documents filed by O2Micro with the SEC from time to time, including but not limited to the Form F-1 in connection with the company's initial public offering in August 2000, which identify important risk factors that could cause actual results to differ from those contained in the forward-looking statements.





Grace Louh, 408/987-5920, Ext. 8051




Source: O2Micro