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:
Apr. 07, 2015
Filed:
Jun. 20, 2012
Jaeyong Park, Cheonan-si, KR;
Junyoung Ko, Cheonan-si, KR;
Whasu Sin, Cheonan-si, KR;
Kyhyun Jung, Cheonan-si, KR;
JaeYong Park, Cheonan-si, KR;
Junyoung Ko, Cheonan-si, KR;
Whasu Sin, Cheonan-si, KR;
Kyhyun Jung, Cheonan-si, KR;
Abstract
A removal apparatus for a semiconductor chip may include a stage configured to support a board on which the semiconductor chip is mounted by bumps, a laser configured to irradiate a laser beam into the board over an area larger than the semiconductor chip, and a picker configured to cause the laser beam to penetrate the semiconductor chip locally and to separate the semiconductor chip from the board. A method of removing a semiconductor chip from a board may include loading the board, on which the semiconductor chip is mounted by bumps, on a stage; irradiating a laser beam into the semiconductor chip to melt the bumps and to separate the semiconductor chip from the board; continuously irradiating the laser beam into the board on which solder pillars, that are residues of the bumps, remain to melt the solder pillars; and removing the solder pillars.