Instrument for holding boats for thermal treatment of semiconductor wafers

- Tel Sagami Limited
Description

FIG. 1 is a front elevational view of an instrument for holding boats for thermal treatment of semiconductor wafers showing our new design;

FIG. 2 is a left side elevational view;

FIG. 3 is a right elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a bottom plan view; and

FIG. 6 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D199694 December 1964 Belke
D272743 February 21, 1984 Knox
4344729 August 17, 1982 Orsinger et al.
4787805 November 29, 1988 Kosikowski
Foreign Patent Documents
28151 February 1987 JPX
727731 March 1980 SUX
Patent History
Patent number: D324057
Type: Grant
Filed: Jan 25, 1989
Date of Patent: Feb 18, 1992
Assignee: Tel Sagami Limited (Kanagawa)
Inventors: Katsumi Ishii (Kanagawa), Atsushi Wada (Chofu)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Antoine D. Davis
Application Number: 7/301,993
Classifications
Current U.S. Class: D15/1441; Miscellaneous (D15/199)