The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2007
Filed:
Mar. 29, 2005
Carl O. Bozler, Waltham, MA (US);
Shaun R. Berry, Allston, MA (US);
Jeremy Muldavin, Westford, MA (US);
Craig L. Keast, Groton, MA (US);
Carl O. Bozler, Waltham, MA (US);
Shaun R. Berry, Allston, MA (US);
Jeremy Muldavin, Westford, MA (US);
Craig L. Keast, Groton, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
A capacitive RF switch and DC RF switch include a fixed electrode having a thin layer of metal and at least one pull-down electrode. A moving plate has a plurality of corrugations and a selective finger design. The capacitive switch includes a selective finger that comes into contact with the fixed electrode so as to minimize the stiction between the moving plate and the fixed electrode when the switch is closed. The DC switch comprises a plurality of dimples that are formed on the selective portion of the moving plate and are positioned to come into contact with the fixed electrode when the switch is closed so as to increase the contact force and lower the resistance between the moving plate and fixed electrode.