Samples fabricated with the next generation TaRF8 process to be available in January

November 20, 2015

TOKYO — Toshiba Corporation’s (TOKYO: 6502) Semiconductor & Storage Products Company today announced the development of “TaRF8”, a next generation TarfSOI™ (Toshiba advanced RF SOI) process optimized for radio-frequency (RF) switch applications that achieves the lowest-class[1] of insertion loss[2] in the industry. Sample shipments of SP12T[3] RF switch ICs for smartphones fabricated with the new process will start in January 2016.

SP12T, a transmit RF switch IC with an integrated MIPI-RFFE[4] controller for mobile applications, is suited to the 3GPP GSM, UMTS, W-CDMA, LTE and LTE-Advanced[5] standards. Products utilizing TaRF8, the next generation process of Toshiba’s proprietary SOI-CMOS[6] TarfSOI front-end process optimized for RF switches, achieves the lowest-class insertion loss in the industry, 0.32dB at 2.7GHz. Compared with products using Toshiba’s current TaRF6 process, insertion loss is improved by 0.1dB while maintaining the same level of distortion characteristics.

With the trend in mobile communications towards high-data-rate, high-capacity data transfers, RF switch ICs used in mobile devices, including smartphones, require multi-port support and improved RF performance. Lowering insertion loss is recognized as a particularly important factor in this, as it decreases RF transmission power loss, which can support a longer battery life for mobile devices.

Toshiba is developing high-performance RF switch ICs utilizing its in-house fab to apply SOI-CMOS technology, which is suitable for integrating analog and digital circuits. By handling all aspects of the production flow, from RF process technology development to the design and manufacturing of RF switch chips, Toshiba can swiftly improve SOI-CMOS process technology in response to feedback from the development results of its own RF switch IC products. This Integrated-Device-Manufacturer (IDM) approach allows Toshiba to quickly establish new process technologies suited to actual products and to enter the market with products fabricated with the latest process technology.

Toshiba will continue improving the performance of its TarfSOI process technology and work towards meeting customer and market requirements for RF switch ICs by introducing cutting-edge technology products ahead of other manufacturers.

Notes

[1] In the RF switch IC market as of November 20, 2015. Toshiba survey.

[2] Power loss that occurs when an RF signal is transmitted through the switch, expressed in decibels (dB).

[3] Single Pole Twelve Throw Switch

[4] A serial bus interface specification for the control of RF components for mobile devices, standardized by the RF Frontend (RFFE) Working Group of the MIPI (Mobile Industry Processor Interface) Alliance.

[5] Mobile communication standards specified by the 3GPP (3rd Generation Partnership Project).

[6] Technology to reduce parasitic capacitance by using an insulation layer under the channel of the MOSFET. SOI: Silicon-On-Insulator

* TarfSOI is a trademark of Toshiba Corporation.

Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.

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http://toshiba.semicon-storage.com/ap-en?mm=cp151120&no=02

 

 

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