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. 09, 2006
Filed:
Jul. 02, 2003
Chee Kiang Yew, Singapore, SG;
Masazumi Amagai, Oita, JP;
Chee Kiang Yew, Singapore, SG;
Masazumi Amagai, Oita, JP;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A method for attaching an integrated circuit chip to an organic substrate comprising the steps of providing an integrated circuit chip having an active and a passive surface, said active surface including a protective polymer layer; activating said polymer layer by exposing it to reactive ion etching plasma, thereby increasing the surface roughness and imparting affinity to adhesion; providing an electrically insulating substrate having first and second surfaces; and contacting said second surface of said substrate to said activated polymer layer on said chip, whereby strong adhesion is exerted at the interface between said layer and said substrate, directly attaching said substrate to said chip.