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In brief: Sirenza, Rochester, WJ and GCS

Sirenza raises its revenue guidance for the first fiscal quarter of 2006 to $21-22 million, Rochester Institute of Technology wins $0.85 million to develop quantum dot solar cells, and GCS agrees to act as a second wafer source for WJ Communications.
Sirenza raises first quarter guidance
US-based chip maker Sirenza Microdevices has raised its first fiscal quarter 2006 sales guidance from $17.5-19 million to $20-21 million.

"Our updated revenue range represents sequential revenue growth of up to 8% over our fourth quarter 2005 record results and a potential quarterly revenue increase of up to 73% year-over-year," remarked company CEO Robert Van Buskirk.

Buskirk added that Sirenza is experiencing broad-based customer demand for a wide range of RF components.

Solar project invests in quantum dots
Ryne Raffaelle and co-workers at the NanoPower Research Labs at Rochester Institute of Technology have won a contract for $0.85 million from the US Department of Defense to develop high-efficiency solar cells containing quantum dots.

The dots will be added to the central GaAs-based layer of triple junction solar cells, and produce an enhancement in short-circuit current and an increase in overall efficiency.

"The use of quantum confinement offered by nanostructured materials provides us with a new means of breaking out of the normal design constraints associated with ordinary crystalline device growth," said Raffaelle.

WJ teams up with GCS
US-based Global Communication Semiconductors (GCS) has agreed to act as a second wafer source for radio-frequency chip maker WJ Communications.

"We're pleased to add GCS as a foundry for InGaP HBT and GaAs technology; this advantage provides our customers with two qualified sources, thereby ensuring a steady supply of wafers," remarked Mark Knoch, vice president of WJ's operations.

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