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. 09, 2010
Filed:
Sep. 13, 2006
Applicants:
Gotthard Jungnickel, Radeberg, DE;
Alexander Platz, Moritzburg, DE;
Frank Kuechenmeister, Dresden, DE;
Inventors:
Gotthard Jungnickel, Radeberg, DE;
Alexander Platz, Moritzburg, DE;
Frank Kuechenmeister, Dresden, DE;
Assignee:
Globalfoundries Inc., Grand Cayman, KY;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
By controlling the cooling rate during the oxidation process for forming an oxide layer on solder balls and by selecting an elevated temperature as an initial temperature of the oxidation process, a reliable yet easily removable oxide layer may be obtained. Consequently, yield losses during the flip chip assembly process may be significantly reduced.
Jungnickel, Gotthard. (2010). Method for forming solder balls with a stable oxide layer by controlling the reflow ambient (U.S. Patent No. 7829453). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7829453
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile