DelfMEMS announces that its breakthrough, SP12T, RF-MEMS ohmic switch has passed the one billion operations milestone

Patented FreeFlex™ RF-MEMS technology is designed to significantly outperform current RF switch designs to deliver the operational performances needed for next generation LTE-A handsets

Villeneuve d’Ascq, France – June 1, 2015 -- DelfMEMS, a leading developer of innovative RF MEMS switching solutions, has announced that its world leading, twelve throw, RF-MEMS ohmic contact switch design has just passed the one billion test cycles milestone and is still going strong.

Cybele Rolland, DelfMEMS CEO, explained, “Achieving the billion switch milestone is a major achievement for our FreeFlex design. Importantly, this is the first time an industrialised RF-MEMS contact switch has been show to achieve this level of performance, but this is only the beginning. Our second-generation production switches, which we will be shipping towards the end of 2016, are expected to achieve up to 50 billion operations. This ensures that they will reliably deliver the performances required for the next generation of handsets, LTE-A and beyond, with ultra-low insertion loss, outstanding isolation and superior linearity, which for end users translates to longer battery life, better call quality and massively increased data speeds.”

There are key two innovations by DelfMEMS that help it achieve this breakthrough. First, although gold is currently used as the contact material, this will be replaced in the production switches by a metal compound that has been proven to be reliable for cold switching in excess of 50 billion cycles. Second, its patented FreeFlex™ MEMS switch design ensures that the contact point is always changing slightly, which lengthens the life of the switch.

The DelfMEMS RF-MEMS switch structure uses a new, integrated, micro-mechanical building block that is based on a robust, new IP portfolio that includes seven key patents and innovations. It does not use a cantilever beam or bridge featuring a highly conductive electrode electrostatically actuated in order to create an ohmic contact resulting in a mechanical switching. These older structures proved to have several issues: stress on the anchors, possible stiction, low commutation speed and possible creep of the beam.
DelfMEMS innovative design approach has resulted in the development of an anchorless structure for mechanical RF switching which totally overcomes these historical design problems instead of trying to simply reduce them.

The FreeFlex membrane is always in a known controlled state as it is electrostatically actuated by two sets of electrodes. The electrostatically ON state is achieved by making physical contact between the membrane contact area and the transmission line and the similarly controlled OFF state is achieved by keeping a physical distance between the membrane contact area and the transmission line. This means that the switch contact area will either be attracted to the conductive line or repelled from it. Moving from ON state to OFF state is made through an electrostatic active actuation, which de-couples between restoring forces, contact forces and the membrane mechanical properties

Another strong advantage of FreeFlex switch structure is the possibility to have a reduced gap between the membrane and the transmission line, which will reduce the creep and mechanical stress by lowering the maximum deflection of the membrane. This results in an increased contact force in ON-state with lowered actuation voltage and therefore lower insertion losses.

DelfMEMS RF-MEMS switches are surface micro-machined devices that use a mechanical movement to switch the RF transmission line on or off. This technology doesn’t suffer from frequency dependency and high multi-throw switch configuration limitation. With a Figure of Merit <10 it offers dramatically superior linearity, insertion loss and isolation performance compared to existing solid-state solutions. This first generation of DelfMEMS switches are manufactured by Honeywell / Tronics in Dallas, Texas and will complete qualification by the end of 2015.

About DelfMEMS
DelfMEMS is a leader in the development and production of outstanding performance radio frequency micro-electro-mechanical systems (RF-MEMS) switches targeting next generation multi-standard, multi-mode, mobile telephony. Its solutions enable increased RF hardware integration and significantly improved RF performance over conventional switching. Features include ultra-low insertion loss, outstanding isolation and superior linearity. Key benefits include better call quality, massively improved data rate, reduced costs, and lower power consumption. The total addressable market in 2018 is forecasted to be more than $1 billion.

Company contact:
11B rue de l'harmonie Hub Innovation
59650 Villeneuve d'Ascq, France
Email Contact
Phone : +33 3 20 05 05 45

Press Contact:
Nigel Robson
Vortex PR.
Email Contact
+44 1481 233080

FreeFlex is a trademark of DelfMEMS SA

Read the complete story ...

Review Article Be the first to review this article

Featured Video
Roberto FrazzoliEDACafe Editorial
by Roberto Frazzoli
Intel’s new CEO: comments from media and analysts
More Editorial  
Product Line Manager for EDA Careers at Multiple, North Carolina
Principle Engineer (Analog-Mixed-Signal Implementation) for Global Foundaries at Santa Clara, California
Senior Application Engineer Formal Verification for EDA Careers at California or Austin, California
Pre-silicon Design Verification Engineer for Intel at Santa Clara, California
Senior Analog IC Design Engineer for Marvell Semiconductor at Santa Clara, California
ASIC Engineer for Amazon at seattle, Washington
Upcoming Events
Si2 AI/ML Winter Workshop at United States - Jan 29, 2021
virtual DATE 2021 at France - Feb 1 - 5, 2021
SEMI Technology Unites Global Summit at United States - Feb 15 - 19, 2021
DVCon U.S. 2021 at Virtual - Mar 1 - 4, 2021

© 2021 Internet Business Systems, Inc.
670 Aberdeen Way, Milpitas, CA 95035
+1 (408) 882-6554 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering TechJobsCafe - Technical Jobs and Resumes GISCafe - Geographical Information Services  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy PolicyAdvertise