Microsemi Awarded Additional Patent for Backlight Technology

    IRVINE, Calif.--Nov. 28, 2001--Microsemi Corp. , today announced that it has now extended its backlight patent portfolio with yet another backlight controller IC patent.
    The new patent brings the total backlight count to four patents covering and protecting Microsemi's unique and efficient method of driving fluorescent lamps in PDA, Notebook, Automotive, and Flat Panel TV applications.
    The patent, US6307765 describes a technique for controlling minimum brightness of a fluorescent lamp without flickering or shimmering. Microsemi's technique of counting lamp current cycles ensures smooth brightness control at low levels. This patent will be used in the company's automotive backlight products where automatic dimming and low light level control is critical for night time or tunnel driving.
    In commenting on the patent award, Jim Peterson, president and CEO of Microsemi stated, "Microsemi has developed an impressive patent library in the area of backlighting displays. Our patented techniques are used today in handheld and automotive systems -- these new patents further expand our available market for our backlight products."

    About Microsemi

    Microsemi is a leading designer, manufacturer and marketer of analog, mixed-signal and discrete semiconductors. The company's semiconductors manage and regulate power, protect against transient voltage spikes and transmit, receive and amplify signals.
    Microsemi products include individual components as well as complete circuit solutions that enhance customer designs by providing battery optimization, reducing size or protecting circuits. Markets the company serves include mobile connectivity, computer/peripherals, telecommunications, medical, industrial/commercial, space/satellite and military.
    More information may be obtained by contacting the company directly or by visiting its Web site at http://www.microsemi.com.

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