Wafer boat or rack

Description

FIG. 1 is a front elevational view of a wafer boat or rack showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view thereof, the left side elevational view being a mirror image and, therefore, not being shown;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a longitudinal sectional view on section 6--6 in FIG. 1;

FIG. 7 is a transverse sectional view on section 7--7 in FIG. 1;

FIG. 8 is an enlarged view of a portion of FIG. 7.

Referenced Cited
U.S. Patent Documents
D291413 August 18, 1987 Uehara et al.
4355974 October 26, 1982 Lee
4515104 May 7, 1985 Lee
4572101 February 25, 1986 Lee
Foreign Patent Documents
403295227 December 1991 JPX
404207022 July 1992 JPX
404207023 July 1992 JPX
Patent History
Patent number: D366868
Type: Grant
Filed: Sep 29, 1993
Date of Patent: Feb 6, 1996
Assignees: Tokyo Electron Kabushiki Kaisha (Tokyo), Tokyo Electron Tohoku Kabushiki Kaisha (Esashi)
Inventor: Tetu Ohsawa (Sagamihara)
Primary Examiner: Alan P. Douglas
Assistant Examiner: S. Snapp
Law Firm: Ladas & Parry
Application Number: 0/13,666
Classifications