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:
Oct. 16, 2018
Filed:
Jul. 08, 2014
Sumitomo Bakelite Co., Ltd., Shinagawa-ku, Tokyo, JP;
Ryo Yamaguchi, Tokyo, JP;
SUMITOMO BAKELITE CO., LTD., Shinagawa-ku, Tokyo, JP;
Abstract
The object of the present invention is to provide a cover tape for packaging an electronic part which enables the reduction of the production time, and decreases the defective fraction due to the temperature variation of the sealing trowel, the present invention provides a cover tape for packaging an electronic part which includes a base layer and a sealant layer, and is closely adhered to a carrier tape, wherein the sealant layer is made of a resin composition; a main component in the resin composition has a melting point of 100° C. or less; a peeling strength A under fixed measurement conditions after heat-sealing to a polycarbonate sheet through the sealant layer at 220° C. for 0.015 seconds and a peeling strength C under the fixed measurement conditions after heat-sealing to a polycarbonate sheet through the sealant layer at 180° C. for 0.015 seconds satisfy conditional expressions 1 and 2 below; and after peeling, a part of the sealant layer remains on a surface of the carrier tape to which the sealant layer is closely adhered; Conditional expression 1: 20 (g)≤A≤70 (g) and Conditional expression 2: 0.43≤C/A≤1.0.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile