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:
Aug. 09, 1994
Filed:
Jun. 28, 1993
Benamanahalli K Nagaraj, Phoenix, AZ (US);
Vern Hause, Phoenix, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A semiconductor chip (26) is attached to a leadframe (20, 30, 40). The leadframe (20, 30, 40) has an opening (24) or a cavity (34, 44) for receiving the semiconductor chip (26). The opening (24) or the cavity (34, 44) and the semiconductor chip (26) have corresponding shapes. The opening (24) or the cavity (34, 44) is made such that they are smaller than the size of the semiconductor chip (26) at room temperature. The opening (24) or the cavity (34, 44) is expanded and the semiconductor chip (26) is placed in the opening (24) or the cavity (34, 44). Subsequent to placing the semiconductor chip (26) in the opening (24) or the cavity (34, 44), the leadframe (20, 30, 40) is cooled so that an edge (25) of the leadframe grips a corresponding edge (29) of the semiconductor chip (26).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile