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STMicroelectronics Buttresses Presence in RF Power arena via Moisture-Resisting Devices


India, December 17, 2013 – STMicroelectronics unveiled two new moisture-resistant radio-frequency (RF) power transistors that increases the endurance and reliability of applications operating in high-moisture environments.

The cavity of the two 50V RF DMOS devices is filled with gel, protecting the same from electro-migration such as silver dendrite migration, a well-known phenomenon that appears in standard ceramic packages due to a combination of contributing factors viz, high temperature, biasing and humidity. The use of gel-filled packages helps reduce the overall maintenance costs of the applications running in high-moisture environments.

ST’s 150W SD2931-12MR and 300W SD4933MR provides a cost-effective solution for 50V industrial RF power generators in applications such as induction heating, CO2 laser-beam sources, PECVD (Plasma-enhanced chemical vapor deposition) sputtering, and solar-cell manufacturing equipment.

The SD4933MR also features the industry’s peak breakdown voltage, which is greater than 200V combined with a 65:1 load mismatch capability in all phases, meeting the most robust design needs.

The SD2931-12MR and SD4933MR are in full production and are priced, in quantities of 1,000 units, at $53 and $77.60, respectively.


Jawed Akhtar

A Journalist by interest and a Music Enthusiast by passion. Wedded to Mother Nature, Jawed indulges his aesthetics in travelling and reading books of varied genres. Having covered News stories for top Dailies in his formative years, that is, he is game for tryst with Technology at Techmagnifier.

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