GORDON JAY GROSSLIGHT
Pilots in Horn Creek, CO
License number
Colorado A2616238
Issued Date
Jan 2017
Expiration Date
Jan 2019
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
PO Box 418, Horn Creek, CO 81252
Professional information
Bearing Assembly For Wafer Planarization Carrier
US Patent:
5791978, Aug 11, 1998
Filed:
Nov 14, 1996
Appl. No.:
8/751014
Inventors:
Joseph V. Cesna - Niles IL
Gordon J. Grosslight - Westcliffe CO
Chris Karlsrud - Chandler AZ
Gordon J. Grosslight - Westcliffe CO
Chris Karlsrud - Chandler AZ
Assignee:
Speedfam Corporation - Chandler AZ
International Classification:
B24B 704, B24B 2900
US Classification:
451388
Abstract:
An apparatus for engaging a workpiece against a polishing surface in a first embodiment includes a lower plate member, the lower plate member includes a hub on a top surface. An upper plate member includes a seat disposed on a bottom surface. The hub fits within the seat to form an air bearing between the lower and upper plate members. A structure supplies air to the air bearing and a flexure spring is disposed between the upper and lower plate members. The lower plate member includes vacuum holes in its bottom surface which are connected to a vacuum source which creates a vacuum pressure for holding the workpiece against the lower plate. A retainer ring including a flange is positioned about the outer edge surface of the lower plate member for holding the workpiece in place on the bottom surface of the lower plate member. A detachable pressure plate is connected to the lower plate member by at least one quick release apparatus which utilizes a locking pin secured to the pressure plate and configured to fit through a bore in the lower plate member. In a second embodiment, the upper plate member has recesses in its top and bottom surfaces.
Manufacture Of Thin-Film Magnetic Heads
US Patent:
6045431, Apr 4, 2000
Filed:
Dec 23, 1997
Appl. No.:
8/996935
Inventors:
Sergei Cheprasov - Niles IL
Gordon J. Grosslight - Westcliffe CO
Gordon J. Grosslight - Westcliffe CO
Assignee:
Speedfam Corporation - Chandler AZ
International Classification:
B24B 4910
US Classification:
451 5
Abstract:
Improved manufacture of thin-film magnetic heads includes a piezoelectric driven actuator for bending row tools used in the mass manufacture of magnetic heads. The actuator is independent of the row tool and includes a lever arm which structurally deflects when driven by the piezoelectric element, converting physical displacement of the piezoelectric element to a force supplied to the row tool, through a portion of the lever arm arranged to undergo deflection. Arrays of piezoelectric actuators are also disclosed for individual adjustment of each magnetic head component of a row being polished.