THOMAS C ROCHE
Engineering in Scottsdale, AZ

License number
Massachusetts 13431
Issued Date
Aug 25, 1960
Expiration Date
Jun 30, 2012
Type
Heating and Ventilation Engineer
Address
Address
Scottsdale, AZ 85268

Professional information

Thomas Roche Photo 1

Method For Reducing Corrosion In Openings On A Semiconductor Wafer

US Patent:
5650356, Jul 22, 1997
Filed:
Mar 11, 1996
Appl. No.:
8/613327
Inventors:
Gordon M. Grivna - Mesa AZ
Gregory W. Grynkewich - Gilbert AZ
Thomas S. Roche - Scottsdale AZ
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H01L 2144
US Classification:
437194
Abstract:
A method is provided for reducing corrosion in openings on a semiconductor wafer. An etched opening is provided in a dielectric material on the semiconductor wafer. The etched opening and the dielectric material are cleaned with a basic solution. The exposed metal surface is treated with a hydrogen peroxide solution before exposing the exposed metal surface to an aqueous solution.


Thomas Roche Photo 2

Metalized Elastomers

US Patent:
6190737, Feb 20, 2001
Filed:
Feb 4, 1998
Appl. No.:
9/018703
Inventors:
Thomas Andrew Roche - Scottsdale AZ
Anthony Neil Davino - Scottsdale AZ
Vinton John Lewis - Birchwood MN
Assignee:
Motorola, Inc. - Schaumburg IL
Summit Coating Technologies - Elmhurst IL
International Classification:
B05D 302
US Classification:
427386
Abstract:
A method (10) for coating a substrate including at least an elastomer substrate portion with a conductive coating is described. The method includes steps of (i) providing a substrate comprising elastomer material and (ii) coating (13) the substrate with an adhesion promoting layer. The layer comprises a thin layer of B stage heat curable epoxy. The method also includes steps of (iii) pre-curing (15) the adhesion-promoting layer, (iv) disposing (17) a conductive coating atop the layer and (v) post-curing (19) the adhesion-promoting layer.


Thomas Roche Photo 3

Method Of Forming A Bond Pad

US Patent:
6924172, Aug 2, 2005
Filed:
Aug 26, 2003
Appl. No.:
10/649426
Inventors:
Thomas S. Roche - Scottsdale AZ, US
Paule C. Aschieri - Tempe AZ, US
Assignee:
Freescale Semiconductor, Inc. - Austin TX
International Classification:
H01L021/44
US Classification:
438106, 438127, 438612, 438688
Abstract:
A top-most layer () is formed over a bond pad layer () and under a passivation layer () and a polyimide layer (). Openings (and ) are formed within the passivation layer () and the polyimide layer () to expose the top-most layer (), which protects the bond pad layer () during the formation of the openings (and ). In one embodiment, the exposed top-most layer () is selectively etched using hydrogen peroxide and an amine, such as ammonium hydroxide. Because the chemistry does not attack the bond pad layer (), the bond pad layer's thickness is not decreased and thus, reliability of the bond pad is maintained.


Thomas Roche Photo 4

Method For Reducing Corrosion Of A Metal Surface Containing At Least Aluminum And Copper

US Patent:
5453401, Sep 26, 1995
Filed:
May 1, 1991
Appl. No.:
7/694155
Inventors:
Gordon M. Grivna - Mesa AZ
Gregory W. Grynkewich - Gilbert AZ
Thomas S. Roche - Scottsdale AZ
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H01L 2144
US Classification:
437194
Abstract:
A method is provided for reducing corrosion of metal surfaces that are comprised of at least aluminum and copper. An organic mask is exposed with a pattern. The organic mask is then subsequently developed, thereby producing open areas in the organic mask that expose portions of the metal surfaces. Applying a solution of hydrogen peroxide to the exposed metal surface, thereby creating a protective film prior to rinsing the exposed metal surface in an aqueous solution.


Thomas Roche Photo 5

Method Of Molding Free-Floating Insert

US Patent:
5966799, Oct 19, 1999
Filed:
Apr 1, 1997
Appl. No.:
8/831118
Inventors:
Wade Norman Understiller - Mesa AZ
Thomas Andrew Roche - Scottsdale AZ
Ronald Dee Fuller - Mesa AZ
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H01P 1100
US Classification:
29600
Abstract:
A method (60) for molding (67) a component (73) including a free floating insert (11). The method includes steps of providing an insert (11) including one or more weakened regions (23) coupled to a removable leader (20) and molding (67) a moldable compound (25) about the insert (11) and a portion of the removable leader (20). The method (60) further includes a step of pulling (69) on the removable leader (20) to fracture the weakened regions (23) and thereby detach the removable leader (20) from a molded component (73) including the insert (11) therein. The molding step (67) desirably includes a step of injection molding (67) a thermoplastic material (25) about the insert (11) and the portion of the removable leader (20).