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> MEMS
Aug 28th, 2012
MEMS anti-stiction coatings patented
The United States Patent and Trademark Office (USPTO) has awarded High Tech Services Inc. the patent No. 79274423 for the method of VAPOR DEPOSITION OF ANTI-STICTION LAYERS FOR MICROMECHANICAL DEVICES.
This patent recognizes High Tech Services, Inc.’s unique equipment designs that significantly contribute to increased yields in the manufacturing of MEMS devices. Manufacturing of MEMS devices is a very specialized field of semiconductor technology that produces microscopic parts that actually move as a function of their design. In the early days of MEMS development it became apparent that one of the handicaps of MEMS manufacturing is a phenomenon called Stiction, defined as "sticking friction". This is where two micro surfaces come in contact with each other; they stick together and cannot be unstuck. It is common for a MEMS manufacturer to spend many years and millions of dollars to develop a working device and then have it fail prematurely from the stiction effect. This is a problem that all MEMS manufacturers have to overcome before their devices are marketable. Sources :
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