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. 20, 2018
Filed:
Sep. 18, 2015
Corning Precision Materials Co., Ltd., Chungcheongnam-do, KR;
Joon Soo Kim, Chungcheongnam-do, KR;
Hyung Soo Moon, Chungcheongnam-do, KR;
Jae Young Choi, Chungcheongnam-do, KR;
Abstract
The present invention relates to a substrate for an integrated circuit package and, more specifically, to a substrate for an integrated circuit package, which reduces mismatch of coefficients of thermal expansion with a semiconductor chip, thereby preventing or minimizing warpage during a reflow process. To this end, the present invention provides a substrate for an integrated circuit package which is interposed between a semiconductor chip and a printed circuit board to electrically connect the semiconductor chip to the printed circuit board, the substrate comprising: an ultra-thin glass; a first CTE control layer which is formed on the upper surface of the ultra-thin glass and formed of a material having a coefficient of thermal expansion different from the coefficients of thermal expansion of the semiconductor chip and the ultra-thin glass; a first metal thin plate which is formed on the upper surface of the first CTE control layer and connected to the semiconductor chip; and a second metal thin plate which is formed on the lower surface of the ultra-thin glass and connected to the printed circuit board.