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:
Jan. 12, 2016
Filed:
Feb. 04, 2014
Samsung Electro-mechanics Co., Ltd., Suwon-si, KR;
Chang Bo Lee, Suwon-si, KR;
Chang Sup Ryu, Suwon-si, KR;
Dae Jo Hong, Suwon-si, KR;
Hyo Seung Nam, Suwon-si, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon-si, KR;
Abstract
The present invention provides a composition for developing a photoresist containing a carboxyl group (—COOH) and a method of developing a photoresist using the composition. The composition includes: a first solution including a salt containing a monovalent cationic component; and a second solution including a salt containing a bivalent cationic component. The composition for photoresist development is advantageous in that the developing depth of a photoresist can be controlled, and the developed surface of a photoresist is flat, thereby enabling the photoresist to be developed to realize precise three-dimensional packaging.