Charles D Potter

US Patent:

6433973, Aug 13, 2002

Filed:

Apr 25, 2000

Appl. No.:

09/557353

Inventors:

Shaoping Li - Naperville IL
Charles Dominic Potter - Bloomington MN

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 539

US Classification:

36032411, 36032412

Abstract:

A magnetoresistive sensor including spin valve sensor layers, an air bearing surface perpendicular to a first edge region common to the spin valve sensor layers, and a non-planar surface perpendicular to a second edge region common to the spin valve sensor layers and opposite the air bearing surface. The invention also features a method for producing a magnetoresistive sensor. The method includes forming a plurality of spin valve sensor layers, wherein an air bearing surface including a plane perpendicular to a first edge region common to the spin valve sensor layers is formed. Furthermore, a non-planar surface including a plane perpendicular to a second edge region common to the spin valve sensor layers, and opposite the air bearing surface is formed.

US Patent:

6641935, Nov 4, 2003

Filed:

Sep 20, 2001

Appl. No.:

09/956052

Inventors:

Shaoping Li - Naperville IL
Charles Potter - Bloomington MN
Dean Palmer - Minneapolis MN
Philip Steiner - Los Altos CA

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 566

US Classification:

428694TS, 428694 TM, 428336, 428611, 428900

Abstract:

A low noise, high areal recording density, perpendicular magnetic recording medium, comprises: (a) a non-magnetic substrate having a surface with a layer stack formed thereon, the layer stack comprising, in overlying sequence from the substrate surface: (b) a soft magnetic underlayer comprised of a soft magnetic multilayer superlattice structure; and (c) a perpendicularly anisotropic, hard magnetic recording layer. Embodiments of the invention include providing the soft magnetic multilayer superlattice structure in the form of n stacked soft magnetic/non-magnetic layer pairs, where n is an integer between about 2 and about 9.

US Patent:

6731473, May 4, 2004

Filed:

Apr 12, 2001

Appl. No.:

09/835246

Inventors:

Shaoping Li - Ridgefield MN
Charles Potter - Bloomington MN

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 539

US Classification:

360314

Abstract:

This invention presents a method and system for fabricating a dual GMR read head, which possess a pseudo spin valve structure. The spin valve structure includes a first thick Co-alloy based reference layer with first and second surfaces. The structure includes a first spacer layer including a first surface contacting the first surface of the first thick Co-alloy layer and a second surface contacting a first surface of a first free layer. The structure also includes a second spacer layer including a first surface separated from the second surface of the first free layer and a second surface contacting a first surface of a second thick Co-alloy layer. The thickness of the first and second thick Co-based alloy can be approximately between 30 and 55.

US Patent:

6760181, Jul 6, 2004

Filed:

Dec 13, 2001

Appl. No.:

10/021158

Inventors:

Shaoping Li - Naperville IL
Charles Potter - Bloomington MN
Wenzhong Zhu - Richfield MN
Tom Rasmussen - Kasson MN

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G11B 2102

US Classification:

360 75

Abstract:

A microactuating suspension assembly used for a disc drive is disclosed. The microactuating suspension assembly has a suspension load beam and a microactuator placed on the suspension load beam for bending the suspension load beam at the front end thereof during a sustained period of data read/write time and thus achieving a desired average fly-height which is different from an unaltered average fly-height which would have been achieved without the microactuator. In particular, the microactuating suspension assembly can be used to achieve a very low fly-height. Additionally, very large bandwidth and very short seeking time is made possible when a bimorph piezoelectric microactuator is used.

US Patent:

7538405, May 26, 2009

Filed:

Jan 13, 2006

Appl. No.:

11/331267

Inventors:

Russell W. Gruhlke - San Jose CA, US
Charles E. Potter - Fort Collins CO, US

Assignee:

Avago Technologies General IP (Singapore) Pte. Ltd. - Singapore

International Classification:

H01L 31/062
H01L 31/113
H01L 31/0232

US Classification:

257436, 257290

Abstract:

Surface plasmons are used to increase an energy absorbing efficiency of a semiconductor sensor.

US Patent:

7558641, Jul 7, 2009

Filed:

Mar 29, 2007

Appl. No.:

11/693708

Inventors:

Chung-Ho Huang - San Jose CA, US
Robert Hefty - Femont CA, US
Andrew Lui - Fremont CA, US
Dave Humbird - Oakland CA, US
Charles Potter - Eagle ID, US

Assignee:

Lam Research Corporation - Fremont CA

International Classification:

G06F 19/00
G05B 13/02

US Classification:

700108, 700 49, 700104, 700121, 702 81, 715961

Abstract:

A computer-implemented method for performing recipe evaluation is provided. The computer-implemented method includes integrating a plurality of data sources into a single recipe report card framework. The recipe report card framework includes an editor for interacting with the plurality of data sources. The computer-implemented method also includes displaying a plurality of graphical displays. Each graphical display of the plurality of graphical displays is configured to present a signal parameter of a set of signal parameters for at least a substrate. The computer-implemented method further includes providing a plurality of criteria for each of the set of signal parameters. The computer-implemented method yet also includes providing a plurality of ranges for the each of the set of signal parameters. The computer-implemented method yet further includes providing an expert guide, which is configured to provide guidance in analyzing a recipe.

US Patent:

8394723, Mar 12, 2013

Filed:

Jan 7, 2010

Appl. No.:

12/684032

Inventors:

Juan Valdivia - Fremont CA, US
Shibu Gangadharan - Boise CA, US
Dave March - Eagle ID, US
Charles Potter - Eagle ID, US

Assignee:

Lam Research Corporation - Fremont CA

International Classification:

H01L 21/3065
H01L 29/06

US Classification:

438710, 257618, 257E21218, 257E29022

Abstract:

A method for adjusting the geometry of photomask patterns is provided. Such adjusted pattern can be employed to achieve pattern doubling in subsequent layers. A patterned photoresist mask is provided over an underlayer. A polymer layer is placed over the mask. The mask is selectively trimmed to generate individual mask features having an increased aspect ratio. Subsequent pattern layers can be formed on the trimmed mask pattern to generate a hard mask having increased pattern density. The hard mask is selectively etched and the material of the trimmed mask pattern is removed. The underlayer is then etched to achieve pattern transfer from the hard mask to the underlayer to achieve a final double density pattern.

US Patent:

20170249191, Aug 31, 2017

Filed:

Feb 25, 2016

Appl. No.:

15/052946

Inventors:

- Amsterdam, NL
Hsing Heng Hsieh - San Jose CA, US
Charles Dominic Potter - San Jose CA, US

International Classification:

G06F 9/50

Abstract:

In some examples, a method includes assigning, to each respective task queue of a plurality of task queues, a respective priority ratio based at least in part on a number of tasks in the respective task queue. The method further includes assigning, by a processor of a plurality of processors, respective tasks from the respective task queues to at least one processor of the plurality of processors in an order based at least in part on the respective priority ratio, wherein the respective priority ratio defines a relative frequency with which tasks from the respective task queue are assigned to the at leak one processor.