Matthew George Simpson

US Patent:

6669871, Dec 30, 2003

Filed:

Nov 19, 2001

Appl. No.:

09/988894

Inventors:

Oh-Hun Kwon - Westboro MA
Matthew A. Simpson - Sudbury MA
Roger J. Lin - Framingham MA

Assignee:

Saint-Gobain Ceramics Plastics, Inc. - Worcester MA

International Classification:

H01B 108

US Classification:

25252021, 2525211, 501103

Abstract:

This invention relates to a dense ceramics having ESD dissipative characteristics, tunable volume and surface resistivities in semi-insulative range (10 -10 Ohm-cm), substantially pore free, high flexural strength, light colors, for desired ESD dissipation characteristics, structural reliability, high vision recognition, low wear and particulate contamination to be used as ESD dissipating tools, fixtures, load bearing elements, work surfaces, containers in manufacturing and assembling electrostatically sensitive microelectronic, electromagnetic, electro-optic components, devices and systems.

US Patent:

6884514, Apr 26, 2005

Filed:

Jan 11, 2002

Appl. No.:

10/044744

Inventors:

Matthew A. Simpson - Sudbury MA, US
Dominique Billieres - Avignon, FR
Gérard Main - Viroflay, FR
Jean-Michel Drouin - Maisons Laffitte, FR

Assignee:

Saint-Gobain Ceramics & Plastics, Inc. - Worcester MA

International Classification:

B32B009/04

US Classification:

428469, 428332, 428446, 428701, 428702, 428699

Abstract:

A method of depositing a coating is disclosed, which method calls for providing a substrate, and thermally spraying a ceramic powder thereon to form a coating. The ceramic powder has a garnet crystal structure phase, and the thermal spraying in turn forms a coating on the substrate that includes a garnet crystal structure phase.

US Patent:

6946417, Sep 20, 2005

Filed:

May 21, 2003

Appl. No.:

10/442616

Inventors:

Matthew Simpson - Sudbury MA, US

Assignee:

Saint-Gobain Ceramics & Plastics, Inc. - Worcester MA

International Classification:

C04B035/488
H01B001/14

US Classification:

501103, 501104, 501105, 2525202, 25252021, 25252022

Abstract:

Aspects of the present invention may be found in an electrostatic dissipative ceramic component having a stabilized zirconia base, a surface resistivity between 1×10and 1×10ohms per square and at least 2 percent by volume scattering material. The stabilized zirconia may be present in amounts between 60 and 95 weight percent. Further aspects of the invention may be found in an electrostatic dissipative ceramic material having stabilized zirconia, a resistivity modifier, and a scattering material. The stabilized zirconia may be present in amounts between 60 and 95 weight percent of the ceramic material. The resistivity modifier may be present in amounts between 5 and 30 weight percent. The scattering material may comprise at least 2 volume percent of the electrostatic dissipative ceramic material. The component may be used in the manufacturing of electronic component such as hard drives.

US Patent:

7094718, Aug 22, 2006

Filed:

Oct 20, 2003

Appl. No.:

10/689192

Inventors:

Oh-Hun Kwon - Westboro MA, US
Matthew A. Simpson - Sudbury MA, US
Roger J. Lin - Framingham MA, US

Assignee:

Saint-Gobain Ceramics & Plastics, Inc. - Worcester MA

International Classification:

C04B 35/488
C04B 35/64
C04B 35/645

US Classification:

501103, 501126, 501152, 264663, 264664, 264604

Abstract:

This invention relates to a dense ceramics having ESD dissipative characteristics, tunable volume and surface resistivities in semi-insulative range (10-10Ohm-cm), substantially pore free, high flexural strength, light colors, for desired ESD dissipation characteristics, structural reliability, high vision recognition, low wear and particulate contamination to be used as ESD dissipating tools, fixtures, load bearing elements, work surfaces, containers in manufacturing and assembling electrostatically sensitive microelectronic, electromagnetic, electro-optic components, devices and systems.

US Patent:

7094719, Aug 22, 2006

Filed:

Jun 27, 2005

Appl. No.:

11/167820

Inventors:

Matthew Simpson - Sudbury MA, US

Assignee:

Saint-Gobain Ceramics & Plastics, Inc. - Worcester MA

International Classification:

C04B 35/488
H01B 1/14

US Classification:

501103, 501104, 501105, 2525202, 25252021, 25252022, 451 28

Abstract:

Aspects of the present invention may be found in an electrostatic dissipative ceramic component having a stabilized zirconia base, a surface resistivity between 1×10and 1×10ohms per square and at least 2 percent by volume scattering material. The stabilized zirconia may be present in amounts between 60 and 95 weight percent. Further aspects of the invention may be found in an electrostatic dissipative ceramic material having stabilized zirconia, a resistivity modifier, and a scattering material. The stabilized zirconia may be present in amounts between 60 and 95 weight percent of the ceramic material. The resistivity modifier may be present in amounts between 5 and 30 weight percent. The scattering material may comprise at least 2 volume percent of the electrostatic dissipative ceramic material. The component may be used in the manufacturing of electronic component such as hard drives.

US Patent:

7247588, Jul 24, 2007

Filed:

Nov 24, 2003

Appl. No.:

10/720982

Inventors:

Oh-Hun Kwon - Westboro MA, US
Christophe Coureau - Marlboro MA, US
Richard A. Gorski - Sterling MA, US
Matthew A. Simpson - Sudbury MA, US

Assignee:

Saint-Gobain Ceramics & Plastics, Inc. - Worcester MA

International Classification:

C04B 35/488
C04B 35/49

US Classification:

501105, 501127, 501154

Abstract:

ESD safe ceramic component is provided which includes a sintered composition which is formed of a base material and a resistivity modifier. The base material includes a primary component and a secondary component, the primary component including AlOand the secondary component including tetragonal-ZrO.

US Patent:

7329467, Feb 12, 2008

Filed:

Aug 22, 2003

Appl. No.:

10/646235

Inventors:

Dominique Billieres - Avignon, FR
Matthew Simpson - Sudbury MA, US

Assignee:

Saint-Gobain Ceramics & Plastics, Inc. - Worcester MA

International Classification:

B32B 9/00

US Classification:

428701, 428697, 428699, 428702, 427422, 4273761

Abstract:

An article is provided that includes a substrate and a corrosion-resistant coating provided on the substrate. The substrate generally consists essentially of alumina, and the corrosion-resistant coating is provided so as to directly contact the substrate without the provision of intervening layers between the substrate and the corrosion-resistant coating, such as reaction products provided by high-temperature treatment processes. The corrosion-resistant coating generally consists essentially of a rare earth oxide, and has an adhesion strength not less than about 15 MPa. According to particular embodiments, the article is a ceramic component utilized and implemented in a semiconductor processing apparatus for processing semiconductor wafers.

US Patent:

7579288, Aug 25, 2009

Filed:

Jul 20, 2005

Appl. No.:

11/185918

Inventors:

Oh-Hun Kwon - Westborough MA, US
Matthew A. Simpson - Sudbury MA, US
Roger J. Lin - Framingham MA, US

Assignee:

Saint-Gobain Ceramics & Plastics, Inc. - Worcester MA

International Classification:

H01L 21/00
A47J 36/02
C04B 35/48
H01B 1/08

US Classification:

438800, 228101, 501103, 25252021, 2525211

Abstract:

This invention relates to a dense ceramics having ESD dissipative characteristics, tunable volume and surface resistivities in semi-insulative range (10-10Ohm-cm), substantially pore free, high flexural strength, light colors, for desired ESD dissipation characteristics, structural reliability, high vision recognition, low wear and particulate contamination to be used as ESD dissipating tools, fixtures, load bearing elements, work surfaces, containers in manufacturing and assembling electrostatically sensitive microelectronic, electromagnetic, electro-optic components, devices and systems.