Microsemi Protects PoE Technology in Suit Against AMI Semiconductor


IRVINE, Calif., June 25, 2007 (PRIME NEWSWIRE) -- Microsemi Corporation (Nasdaq:MSCC) a leading manufacturer of high performance analog mixed signal integrated circuits and high reliability semiconductors, announced today that its wholly owned subsidiary, PowerDsine Ltd, has filed a complaint against AMI Semiconductor, Inc., and AMI Semiconductor Belgium BVBA (collectively, "AMIS") alleging that AMIS breached an undertaking not to develop and market products for the power-over-Ethernet ("PoE") market based upon confidential information provided to AMIS by PowerDsine. The complaint is pending before the Federal District Court for the Southern District of New York.

The complaint asks the Court to impose preliminary and permanent injunctions enjoining AMIS from, inter alia, engaging in any manufacturing, sale or assembly arrangement with Broadcom (Nasdaq:BRCM) and any other seller or supplier of PoE products. The Complaint also seeks monetary damages from AMIS.

On May 22, 2007, AMIS announced that "it was selected by Broadcom...as a design and technology partner for two new highly-integrated power sourcing equipment (PSE) controllers (the BCM59101 and BCM59103 PSE controllers) for use in Broadcom's Power over Ethernet (PoE) products."

In the complaint PowerDsine also alleges that AMIS designs and/or manufactures PoE products, based on confidential and proprietary information that AMIS received from PowerDsine.

"PowerDsine, is a pioneer of PoE technology and was a major force that will make PoE technology a part of almost every Ethernet network," stated Steven G. Litchfield, Microsemi Executive Vice President and President of the Analog Mixed Signal Group. "PowerDsine has been conducting research and development activities with respect to PoE technology for almost ten years and we believe that it is responsible for most of the innovation in this space. PowerDsine, like Microsemi, is never happy to initiate litigation, however, we were forced into this situation in order to protect our rights," Litchfield said.

PowerDsine designs, develops and supplies integrated circuits, modules and systems that enable the implementation of Power-over-Ethernet in local area networks, providing the capability to deliver and manage electrical power over data network cables. PowerDsine offers integrated products and system solutions to communications equipment manufacturers in the telecom and datacom industries who incorporate them into, or bundle them with, their products. PowerDsine was acquired by Microsemi in January, 2007.

About Microsemi Corporation

Microsemi Corporation, with corporate headquarters in Irvine, California, is a leading designer, manufacturer and marketer of high performance analog and mixed signal integrated circuits and high reliability semiconductors. The company's semiconductors manage and control or regulate power, protect against transient voltage spikes and transmit, receive and amplify signals.

Microsemi's products include individual components as well as integrated circuit solutions that enhance customer designs by improving performance, reliability and battery optimization, reducing size or protecting circuits. The principal markets the company serves include implantable medical, defense/aerospace and satellite, notebook computers, monitors and LCD TVs, automotive and mobile connectivity applications. More information may be obtained by contacting the company directly or by visiting its web site at http://www.microsemi.com.

The Microsemi Corporation logo is available at http://www.primezone.com/newsroom/prs/?pkgid=1233

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Any statements set forth in the news release that are not entirely historical and factual in nature are forward-looking statements. For instance, all statements of plans, beliefs, or expectations are forward-looking statements. Forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified. Potential risks and uncertainties include, but are not limited to, such factors as changes in generally accepted accounting principles, the difficulties regarding the making of estimates and projections, in the hiring and retention of qualified personnel in a competitive labor market, of acquiring and integrating new operations or assets, or in closing or disposing of operations or assets, or possible difficulties in transferring work from one plant to another, or regarding rapidly changing technology and product obsolescence, difficulties predicting the timing and costs of plant closures, the potential inability to realize cost savings or productivity gains or other impediments to improving capacity utilization, potential cost increases, weakness or competitive pricing environment of the marketplace, uncertain demand for and acceptance of the company's products, unexpected results of in-process or planned development or marketing and promotional campaigns, changes in demand for products, difficulties foreseeing future demand, inventory adjustments by customers, customer order cancellations, effects of limited visibility of future sales, potential non-realization of expected orders or non-realization of backlog, product returns, product liability, and other potential adverse business and economic conditions or adverse changes in current or expected industry conditions, business disruptions, travel disruptions, embargoes, epidemics, disasters, wars or potential future effects of the tragic events of September 11, variations in customer order preferences, fluctuations in market prices of the company's common stock and potential unavailability of additional capital on favorable terms, difficulties in implementing company strategies, dealing with environmental matters, other regulatory matters, or any matters involving litigation, arbitration, or investigation, difficulties and costs imposed by law, including Section 404 of the Sarbanes-Oxley Act of 2002, difficulties in determining the scope of, and procuring and maintaining, adequate insurance coverage, difficulties, and costs of protecting patents and other proprietary rights, work stoppages, labor issues, inventory obsolescence, difficulties regarding customer qualification of products, manufacturing facilities and processes, and other difficulties managing consolidation or growth, including in the maintenance of internal controls, the implementation of information systems, and the training of personnel. In addition to these factors and any other factors mentioned elsewhere in this news release, the reader should refer as well to the factors, uncertainties or risks identified in the company's most recent Form 10-K and subsequent Form 10-Q reports filed with the SEC. Additional risk factors shall be identified from time to time in Microsemi's future filings. Microsemi does not undertake to supplement or correct any information in this release that is or becomes incorrect.

Investor Inquiries: David R. Sonksen, Microsemi Corporation, Irvine, CA (949) 221-7101.



            

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