Neko
Supreme Overlord
Dec 8, 2003, 9:55 PM
Post #1 of 1
(3109 views)
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Kyoto, Japan - September 24, 2003 - Kyocera Corporation today announced, in the field of electronic components business, the new SF16 Series, the industry's smallest* Chip Size Package (CSP) type radio frequency (RF) Surface Acoustic Wave (SAW) filter developed using Kyocera's home-grown computer simulation technology. Featuring reductions in both size and weight with low loss and high attenuation capabilities, the SF16 Series brings to market advanced voice quality to complement the latest technologies in mobile phones. Furthermore, outstanding levels of weather resistance and durability have been enabled through hermetic sealing with ceramic substrate, providing customers with the highest levels of component reliability, essential for combating the harsh physical conditions that mobile phone handsets must endure.
The SF16 Series filters are for use with PCS (1.9GHz), Cellular (800MHz) and GPS (1.5GHz) Band receptions. Optimized for CDMA mobile communications, the new line of products is fully compatible with Qualcomm's MSM6000? Series CDMA chipsets for mobile phones. The launch of this series adds to Kyocera's growing line-up of electronic components for CDMA communications, which already includes VC-TCXOs, VCOs, and Bluetooth modules.
"The global market for mobile phones is rapidly advancing, with the increasing integration of enhanced features such as in-built cameras, high-resolution displays and high-speed data transmission capabilities, and a general trend of compactness of size. There are accordingly growing needs for SAW filters that can maintain high voice quality, while supporting the newest mobile features and meeting demands of reduced size and weight," said Eizo Ohtsuka, manager of Kyocera's Piezo R&D Department. "The introduction of the SF16 Series underscores Kyocera's commitment to the global SAW filter market. Our continued developments in SAW filter technology for use with CDMA transmission and GSM communications will further consolidate our position as industry leaders."
Product Highlights
1. Compactness
In developing this CSP-type SAW filter, Kyocera has replaced the previous method of mounting the SAW chip onto ceramic package, by flip-chip mounting the miniaturized SAW chip onto ceramic substrate, sealing it, and then applying an external resin coating. As a result, Kyocera has been able to achieve the smallest class dimensions in the industry (1.6 x 1.4 x 0.6mm), with a reduction of more than two-thirds in size compared to previous products (2.5 x 2.0 x 0.9mm). The footprint was decreased by over a half.
2. Reliability
Mobile phones are used throughout a wide range of temperatures, and must be able to withstand mechanical impacting such as being shaken or dropped. The highest standards of reliability are therefore demanded of components installed inside mobile handsets. The SF16 Series consists of a SAW chip mounted onto Kyocera's specially developed ceramic substrate, with the highest levels of chip reliability and durability guaranteed through lead-free hermetic soldering. In addition to this, the SAW chip has been coated with a flexible external resin, protecting it against mechanical shock.
3. Voice quality
A combination of Kyocera's computer simulation technology (which facilitated the design of the high-Q SAW resonator) and Kyocera's high precision micro-fabrication technology have enabled the development of a filter with low insertion loss and high attenuation. Furthermore, the switch from ceramic package to ceramic substrate has resulted in a simplification of the filter's inner wiring, enabling reduced parasitic impedance and outstanding levels of attenuation in high frequency bandwidths above 3GHz. This has produced a filter delivering exceptional voice quality for mobile devices.
4. Productivity
Kyocera has implemented CSP 'multi-production' manufacturing, to replace the ceramic package-based 'one-by-one' production formula, resulting in a dramatic rise in manufacturing productivity.
The SF16 Series will enter mass production at a capacity of 2.5 million units per month in November 2003 at Kyocera's manufacturing plant in Kagoshima, Japan. Kyocera plans to increase production capacity to 5 million units per month in March 2004.
The SF16 Series will be exhibited at CEATEC Japan 2003 in Makuhari Messe from October 7 to 11, 2003.
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