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:
Dec. 13, 1994
Filed:
Jul. 12, 1993
A Andrew Shores, Venice, CA (US);
Staystik, Inc., Venice, CA (US);
Abstract
A microelectronic device containing one or more dies bonded to a substrate 0.5-8 mil thick thermoplastic adhesive film is disclosed. The adhesive's main constituent is a thermoplastic organic high polymer containing the elements of carbon and hydrogen, and one or more of the elements oxygen, nitrogen, sulfur, halogen in its repeating unit. The polymer's Vicat softening temperature is 30.degree.280.degree. C., preferably 70.degree.-230.degree. C. The adhesive may also contain up to 45 volume percent of a thermally conductive inorganic filler of 0.5-20 micrometer particle size. The attachment process simply consists of heating and pressing the film, sandwiched between the adherent surfaces, above the melting temperature and cooling to ambient.