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:
Mar. 06, 2012
Filed:
Jan. 24, 2008
Wei-hsing Tuan, Taipei, TW;
Tsong-jen Yang, Taipei, TW;
Wei-Hsing Tuan, Taipei, TW;
Tsong-Jen Yang, Taipei, TW;
National Taiwan University, Taipei, TW;
Abstract
A method of manufacturing a ceramic/metal composite structure includes the steps of: providing a ceramic substrate; forming a metal interface layer on the ceramic substrate; placing a copper sheet on the metal interface layer; heating the ceramic substrate, the metal interface layer and the copper sheet so that the metal interface layer forms strong bonds with the ceramic substrate and the copper sheet. Multiple stages of pre-oxidizing processes are performed on the copper sheet at different temperatures and in different atmospheres with different oxygen partial pressures before the copper sheet is placed on the metal interface layer. The metal interface layer provides a wetting effect for the copper sheet to the ceramic substrate at a high temperature so that the copper sheet wets a surface of the aluminum oxide.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile