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.

Date of Patent:
Oct. 18, 1994

Filed:

May. 03, 1993
Applicant:
Inventors:

William J Wingfield, Lauderhill, FL (US);

Mark A Crandall, Sunrise, FL (US);

Leng H Ooi, Sunrise, FL (US);

Assignee:

Motorola, Inc., Schaumburg, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ; H03B / ; H01P / ;
U.S. Cl.
CPC ...
331 96 ; 331 67 ; 3311 / ; 333219 ; 333238 ; 333246 ;
Abstract

A shielded microstrip assembly (100)includes a substrate 102 having a first ground plane surface (106) and a second surface (206) which includes a transmission line (216). A plurality of solder balls (104) provide electrical interconnection for the ground plane and for the terminals (210) and (212) of transmission line (216). The microstrip assembly (100) is then inverted and attached using solder balls (104) to a carrier (302). The inverted microstrip assembly (100) of the present invention provides for improved shielding, while maintaining the high Q and other advantages associated with a microstrip.


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Wingfield, William. (1994). Self-shielding microstrip assembly (U.S. Patent No. 5357218). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5357218

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