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:
Nov. 09, 2010
Filed:
Oct. 01, 2008
Kazuaki Ano, Hijo-machi-gun, JP;
Kazuaki Ano, Hijo-machi-gun, JP;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A low-viscosity resin is deposited using an apparatus with a movable and heatable wheel and a heater stage. A tape is provided, which includes a layer () of an adhesive polymeric resin and a film () of an inert plastic compound. The tape is wrapped around the wheel () so that the film touches the wheel and the layer faces away from the wheel. The wheel is heated to a temperature high enough to transits the polymeric resin into a low-viscosity state. A substrate strip (), which has been assembled with a plurality of semiconductor chips () connected to the substrate by bonding wires (), is placed on a station () also heated to the transition temperature. The wheel is then moved to roll the low viscosity resin on the chips and wires along the strip, while the inert film is separated. The chips and wires are thus encapsulated.