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:
Oct. 17, 1995
Filed:
Dec. 16, 1994
Applicant:
Inventor:
Mikihiro Kajita, Tokyo, JP;
Assignee:
NEC Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
437-3 ; 437-8 ; 437906 ; 437974 ;
Abstract
In a device fabrication method, there are prepared a first substrate having registration patterns formed thereon and a second substrate having through bores formed therein and devices formed thereon through a separation layer. The two substrates are overlapped by viewing the registration patterns through the through bores. After the first substrate and the devices formed on the second substrate have been bonded, the devices are separated from the second substrate by selectively etching the separation layer, and are transferred to the first substrate.