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Infineon introduces first BAW filters using WLP tech

Posted: 14 Jun 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Infineon Technologies?

BAW filters for 3G phone

Infineon Technologies AG announced the extension of its Bulk Acoustic Wave (BAW) filter product portfolio for UMTS/W-CDMA cell phones at the MTT International Microwave Symposium. The complimentary pair of new duplexer filters, NWX2015CR and NWX2015CT, is the touted to be the world's first BAW filters produced using wafer-level packaging (WLP) technology, which reduces production cost and board space requirements in 3G mobile phones.

According to the press release, NWX2015CR (passband: 2110-2170 MHz) and NWX2015CT (passband: 1920-1980 MHz), is designed to maximize receive sensitivity and power efficiency of PA-duplexer RF front-end modules. With insertion loss, stop-band attenuation and isolation being stable over the entire temperature range, and WLP permitting very cost-effective module integration, Infineon's NWX2015 BAW filters are a critical enabler for 3G UMTS handsets.

In addition, the WLP technology reduces manufacturing costs of mobile phone front-end modules by up to 25 percent, the company said. Also, with WLP technology providing a significantly greater flexibility when bonding the filter dies, it enables manufacturers to reduce the module size by up to 30 percent.

Infineon already shipped more than 100 million BAW filters to leading handset manufacturers and RF module vendors. The ongoing rollout of high-speed 3G wireless communication networks is spurring interest in small, lightweight 3G mobile phones and fuelling a strong demand for BAW filters. Based on research by market analysts, the growth rate in this segment of the mobile phone market is four times the projected unit growth rate of the total mobile phone market.

"The new 8-inch BAW filter production line in Regensburg, Germany, will double the production output and enable us to further increase market share in high-performance filter applications, such as 3G phones," stated Stefan Wolff, vice president and general manager of Infineon's RF engine business unit.

The devices are being shown in the Infineon booth (number 1023) at the MTT International Microwave Symposium in San Francisco from June 11 to 16. The NWX2015CR and NWX2015CT UMTS/W-CDMA duplexer filters are sampling now, with full production planned for mid CY2007. Sample pricing is 40 cents per piece.

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