Wafer-boat for heat-processing of semiconductor wafers

- Tokyo Electron Limited
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Description

FIG. 1 is a perspective view of the wafer-boat for heat-processing of semiconductor wafers;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof. A right side view thereof is a mirror image thereto;

FIG. 7 is a reference drawing showing sectional views thereof;

FIG. 8 is a sectional view taken along line 88 in FIG. 7;

FIG. 9 is a sectional view taken along line 99 in FIG. 7;

FIG. 10 is a sectional view taken along line 1010 in FIG. 7; and,

FIG. 11 is an enlarged sectional view taken along line 1111 in FIG. 7.

Claims

The ornamental design for a wafer-boat for heat-processing of semiconductor wafers, as shown and described.

Referenced Cited
U.S. Patent Documents
5219079 June 15, 1993 Nakamura
D361752 August 29, 1995 Yamaga
D404371 January 19, 1999 Shimazu
D409158 May 4, 1999 Shimazu
D411176 June 22, 1999 Shimazu
6065615 May 23, 2000 Uchiyama et al.
D429224 August 8, 2000 Ishii
6488497 December 3, 2002 Buckley et al.
6796439 September 28, 2004 Araki
20020092815 July 18, 2002 Kim et al.
20030010730 January 16, 2003 Buckley
20030024888 February 6, 2003 Payne et al.
20050145584 July 7, 2005 Buckley et al.
Patent History
Patent number: D551634
Type: Grant
Filed: Aug 25, 2005
Date of Patent: Sep 25, 2007
Assignee: Tokyo Electron Limited (Tokyo)
Inventor: Kazuyuki Sugawara (Minato-ku)
Primary Examiner: Selina Sikder
Attorney: Smith, Gambrell & Russell, LLP
Application Number: 29/236,991