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:
Jun. 14, 2005
Filed:
May. 23, 2003
Applicants:
Takeyuki Suzuki, Yokohama, JP;
Yoshinori Wakabayashi, Tokyo, JP;
Inventors:
Takeyuki Suzuki, Yokohama, JP;
Yoshinori Wakabayashi, Tokyo, JP;
Assignee:
Yamaichi Electronics Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L021/44 ;
U.S. Cl.
CPC ...
Abstract
While a transfer surfaceof a transfer platehaving a predetermined surface roughness is brought into contact with a plurality of bumpsB on a contact sheetformed on a substrateM having the coefficient of linear expansion larger than that of the transfer plateat a predetermined pressure, the substrateM and the transfer plateare heated to a predetermined temperature to recover the surface roughness of the bumpB to a predetermined value.