Attracting plate of an electrostatic chuck for semiconductor manufacturing

- Tokyo Electron Limited
Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front elevational view of an attracting plate of an electrostatic chuck for semiconductor manufacturing, showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is an enlarged view thereof taken along sections A—A and B—B in FIG. 1;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a cross-sectional view taken along line 77 in FIG. 4 with portions of the internal mechanism omitted; and,

FIG. 8 is a front perspective view thereof.

The broken line showing in the figures is for illustrative purposes only and forms no part of the claimed design.

Claims

The ornamental design for an attracting plate of an electrostatic chuck for semiconductor manufacturing, as shown and described.

Referenced Cited
U.S. Patent Documents
3078565 February 1963 Sanders
4502094 February 26, 1985 Lewin et al.
6278600 August 21, 2001 Shamouilian et al.
6628503 September 30, 2003 Sogard
6721162 April 13, 2004 Weldon et al.
D546784 July 17, 2007 Hayashi
D548200 August 7, 2007 Hayashi
D548705 August 14, 2007 Hayashi
D553104 October 16, 2007 Oohashi et al.
20020027762 March 7, 2002 Yamaguchi
20020159217 October 31, 2002 Tsuruta et al.
20040179323 September 16, 2004 Litman et al.
20040190215 September 30, 2004 Weldon et al.
20040218339 November 4, 2004 Nakamura
20060164785 July 27, 2006 Pellegrin
20060221539 October 5, 2006 Morita et al.
Patent History
Patent number: D587222
Type: Grant
Filed: Feb 1, 2007
Date of Patent: Feb 24, 2009
Assignees: Tokyo Electron Limited (Tokyo), Sumitomo Osaka Cement Co., Ltd. (Tokyo)
Inventors: Yasuharu Sasaki (Nirasaki), Mamoru Kosakai (Tokyo)
Primary Examiner: Selina Sikder
Attorney: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Application Number: 29/276,663