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NORTH DALLAS - Clarisay Inc., a chip company whose backers include Motorola and private-equity firms funded by Mort Meyerson and Richard Rainwater, has shut its doors.
The Dallas firm went into Chapter 7 bankruptcy on May 6, about 15 months after Illinois-based Motorola's venture arm purchased an undisclosed equity stake in the company and signed a development deal with it. Motorola had planned to include Clarisay's semiconductors in bigger packages of chips used in cellular phones, though it's not clear whether that happened.
Clarisay, which raised more than $14 million during the six years it was incorporated, built what it said was a better version of a device called a surface acoustic wave filter. Called SAW filters for short, the chips are used primarily in wireless phones to reduce unwanted noise during calls and reduce the number of dropped calls.
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