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.:

US 6808379 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 26, 2004

Filed:

Dec. 20, 2001
Applicant:
Inventor:

Cheol Joon Yoo, Cheonan, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 3/358 ; B29C 3/372 ;
U.S. Cl.
CPC ...
B29C 3/358 ; B29C 3/372 ;
Abstract

An apparatus for cleaning a mold die set includes a pair of brushes, a pair of vacuum holes, and multiple nozzles. One of the brushes is positioned to scrub a first surface of the mold die set, and the other of the brushes is positioned to scrub a second surface of the mold die set to separate a residue from the first and second surfaces of the mold die set. The vacuum holes receives the separated residue from the first and second surfaces of the mold die set, and through the nozzles, a parting compound is provided to coat the first and second surfaces of the mold die set. The apparatus further includes multiple air holes through which air is blown to the first and second surfaces of the mold die set. An apparatus for semiconductor manufacturing includes a mold die set having a first surface and a second surface and a mold die set cleaner that can remove a residue from the first and second surfaces of the mold die set and coat a parting compound on the first and second surfaces.


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Yoo, Cheol. (2004). Cleaner for molding apparatus of semiconductor chip packages (U.S. Patent No. 6808379). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6808379

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