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:
Jul. 09, 2002
Filed:
Feb. 08, 1999
Applicant:
Inventors:
Assignee:
Advance Micro Devices, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/176 ;
U.S. Cl.
CPC ...
H01L 2/176 ;
Abstract
According to one aspect of the disclosure, the present invention provides methods and arrangements for milling the substrate of a semiconductor device and exposing a selected region in the substrate. A laser is directed at a selected area of the back side of the device to create a small marker to be used for alignment during the milling process. The substrate is then milled to expose the selected area within the substrate, using the marker as alignment.