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:
Jun. 25, 1996
Filed:
Feb. 15, 1995
Knut Brenndoerfer, Ismaning, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A SMD with an RF semiconductor chip (1) encapsulated in a plastic housing is provided. The device has at least one active RF component or an integrated RF circuit with terminal locations, these being contacted by bond wires (4) in the interior of the housing to interconnects of a system carrier (2, 3) that form the outer terminals, the semiconductor chip to be secured on the system carrier. The housing is cost-beneficial and has good RF properties even at extremely high frequencies, e.g., above 2.4 GHz. The system carrier (2, 3) is formed as a co-planar three-band stripline composed of at least one inner RF conductor (3) and outer conductors (7) proceeding at a lateral spacing therefrom which serve as ground terminal. The outer conductors (7) form a planar connection in the housing interior on which the semiconductor chip (1) is secured lying opposite the end of the inner RF conductor (3).