Invention Grant
US07791055B2 Electron induced chemical etching/deposition for enhanced detection of surface defects
有权
电子诱导化学蚀刻/沉积,以增强表面缺陷的检测
- Patent Title: Electron induced chemical etching/deposition for enhanced detection of surface defects
- Patent Title (中): 电子诱导化学蚀刻/沉积,以增强表面缺陷的检测
-
Application No.: US11483800Application Date: 2006-07-10
-
Publication No.: US07791055B2Publication Date: 2010-09-07
- Inventor: Mark J. Williamson , Paul M. Johnson , Shawn D. Lyonsmith , Gurtej S. Sandhu , Justin R. Arrington
- Applicant: Mark J. Williamson , Paul M. Johnson , Shawn D. Lyonsmith , Gurtej S. Sandhu , Justin R. Arrington
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Schwegman, Lundberg & Woessner, P.A.
- Main IPC: G01N21/86
- IPC: G01N21/86

Abstract:
A method of imaging and identifying defects and contamination on the surface of an integrated circuit is described. The method may be used on areas smaller than one micron in diameter. An energetic beam, such as an electron beam, is directed at a selected IC location having a layer of a solid, fluid or gaseous reactive material formed over the surface. The energetic beam disassociates the reactive material in the region into chemical radicals that either chemically etch the surface preferentially, or deposit a thin layer of a conductive material over the local area around the energetic beam. The surface may be examined as various layers are selectively etched to decorate defects and/or as various layers are locally deposited in the area around the energetic beam. SEM imaging and other analytic methods may be used to identify the problem more easily.
Public/Granted literature
- US20080006786A1 Electron induced chemical etching/deposition for enhanced detection of surface defects Public/Granted day:2008-01-10
Information query