LANCE EUGENE STOVER
Pilots at Hilltop Rd, Edina, MN

License number
Minnesota A2406233
Issued Date
Aug 2016
Expiration Date
Aug 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
16291 Hilltop Rd, Edina, MN 55347

Professional information

Lance Stover Photo 1

Machining Guide For Magnetic Recording Reproduce Heads

US Patent:
6047224, Apr 4, 2000
Filed:
Feb 26, 1998
Appl. No.:
9/031959
Inventors:
Lance E. Stover - Eden Prairie MN
Beat G. Keel - Prior Lake MN
Shanlin X. Hao - St. Paul MN
Assignee:
Seagate Techology, Inc. - Scotts Valley CA
International Classification:
G11B 5127, G11B 539
US Classification:
700119
Abstract:
An electrical lap guide (ELG) and a method of using the same to control the machining of a surface of a magnetic transducer to obtain a desired transducer height are disclosed. The transducer and ELG are fabricated in a deposition of layers on a substrate. The ELG includes a first resistor aligned with the transducer such that a machined height of the first resistor is indicative of a machined height of the transducer. Resistances of second and third resistors of the ELG are measured. A sheet resistance of the deposition of layers and a quantity of wafer processing edge movement are determined as functions of the measured resistances of the second and third resistors. An expected non-machined resistance of the first resistor is determined as a function of the determined sheet resistance and as a function of the determined quantity of edge movement. A non-machined resistance of the first resistor is measured. The expected non-machined resistance of the first resistor is compared to the measured non-machined resistance of the first resistor to determine an amount of error.


Lance Stover Photo 2

Patterned And Directional Selective Roughening Of A Slider Air-Bearing Surface

US Patent:
6366429, Apr 2, 2002
Filed:
Feb 9, 1999
Appl. No.:
09/246920
Inventors:
Lance Eugene Stover - Eden Prairie MN
Maher Abdullah Alodan - Bloomington MN
Daniel Paul Burbank - Minneapolis MN
Dale Eugene Egbert - Deephaven MN
Zine Eddine Boutaghou - Vadnais Heights MN
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 560
US Classification:
3602366
Abstract:
An information handling system, such as a disk drive, including a base, a disk stack rotatably attached to the base, and an actuator assembly movably attached to the base. The actuator assembly also includes a load spring and a slider attached to said load spring. The slider and load spring are attached to form a gimballing connection between the slider and the load spring. The slider includes an air-bearing surface which has a contact area. The slider also includes a transducer. The transducer is typically located near said contact area. The contact area includes a roughened surface portion and a smooth surface portion. The smooth surface portion is adjacent the transducer. The roughened surface portion is rougher than the smooth surface portion. The roughened surface portion is also rougher than the other surfaces associated with the air-bearing surface of the slider. The roughened surface portion of the contact area is formed by one of several techniques.


Lance Stover Photo 3

Disc Drive Slider Having Textured Pads

US Patent:
6529347, Mar 4, 2003
Filed:
Aug 24, 2001
Appl. No.:
09/939174
Inventors:
Mary C. Hipwell - Minneapolis MN
Jason W. Riddering - Prior Lake MN
Jorge V. Hanchi - Minneapolis MN
Lance E. Stover - Eden Prairie MN
Timothy W. Stoebe - Minnetonka MN
Brian W. Karr - Savage MN
Jianxin Zhu - Eagan MN
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 560
US Classification:
3602366, 3602369
Abstract:
A disc drive slider includes a slider body and a rail formed on the slider body. The rail includes a bearing surface which faces a surface of a disc. A textured portion is formed on the bearing surface of the rail. Pads are deposited on the textured portions. The pads operate to reduce stiction, dynamic friction, and the likelihood of damage to the slider or the surface of the disc due to contact therebetween.


Lance Stover Photo 4

Disc Head Slider Having Vertically Contoured Features And Method Of Fabricating Vertically Contoured Features On A Slider

US Patent:
6870707, Mar 22, 2005
Filed:
Jan 9, 2001
Appl. No.:
09/757446
Inventors:
Lanshi Zheng - Eden Prairie MN, US
Lance E. Stover - Eden Prairie MN, US
Jianxin Zhu - Eagan MN, US
Weimin Qian - Bloomington MN, US
Lowell J. Berg - Eden Prairie MN, US
Moshe Olim - Eden Prairie MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B005/60, G11B017/32, G11B015/64
US Classification:
3602356
Abstract:
A method of contouring a surface of a slider for supporting a transducer relative to a data storage medium includes applying a lithographic resist layer to the slider surface. The resist layer is then exposed through a single mask having 3a mask pattern defined by variation in an optical density through the mask. The resist layer is exposed in an exposure pattern corresponding to the mask pattern. Portions of the resist layer are removed as a function of the exposure pattern to produce a vertically contoured resist layer. The slider surface is etched through the vertically contoured resist layer during a single etching step to form a vertically contoured surface feature within the slider surface.


Lance Stover Photo 5

Controlled Air Bearing (Cab) For Magnetic Spacing Control

US Patent:
7755867, Jul 13, 2010
Filed:
Jul 16, 2002
Appl. No.:
10/195955
Inventors:
Youping Mei - Eden Prairie MN, US
Lance E. Stover - Eden Prairie MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 5/56, G11B 21/24
US Classification:
3602947, 3602344, 3602356
Abstract:
The present invention relates to a controlled air bearing which allows adjustable control over the magnetic spacing between the pole tips of a slider and the surface of the disc. In accordance with one embodiment of the invention, a slider for use in a data storage system, the slider comprises a base portion having a leading edge end and a trailing edge end. The embodiment further comprises a movable air bearing surface element positioned at the leading edge end of the base portion. Finally, the embodiment further comprises an actuator positioned at the leading edge end of the base portion and coupling the base portion to the movable air bearing surface element, the actuator selectively controllable to move the movable air bearing surface element relative to the base portion to alter an air bearing surface provided by the base portion and the movable air bearing surface element to thereby control a fly height of the slider. The present invention includes a method for implementing the steps performed by the embodiment of the apparatus.


Lance Stover Photo 6

Method And Apparatus For Detecting Proximity Contact Between A Transducer And A Medium

US Patent:
2008027, Nov 6, 2008
Filed:
May 1, 2007
Appl. No.:
11/799204
Inventors:
Dongming Liu - Eden Prairie MN, US
Lin Zhou - Eagan MN, US
Lance E. Stover - Eden Prairie MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 5/596, G11B 5/127, G11B 5/52
US Classification:
360 86
Abstract:
A method and apparatus are provided for positioning a transducer relative to a track of a data storage medium and inducing lateral modulation of transducer the relative to the track. An element of the transducer is actuated toward the storage medium during the lateral modulation, and atomic interaction is detected between the element and the storage medium because of a change in a response to the lateral modulation of the transducer due to the atomic interaction.


Lance Stover Photo 7

Head With Heating Element And Control Regime Therefor

US Patent:
6975472, Dec 13, 2005
Filed:
Sep 12, 2003
Appl. No.:
10/662068
Inventors:
Lance E. Stover - Eden Prairie MN, US
Jane Katherine Gates - Minneapolis MN, US
Ladislav Rudolf Pust - Savage MN, US
John L. Brand - Burnsville MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B005/02
US Classification:
360 59, 360 55, 360 25, 360 9701, 360 9702, 3602947, 360128
Abstract:
A head with a heating element and control regime therefor is disclosed. In embodiments described, the control regime or controller energizes the heater or heating element to provide intermittent heating between read or write operations to optimize transducer temperature and operating characteristics or parameters of a data storage device. In particular, in one embodiment described, the controller provides a low amplitude signal or current to provide low grade thermal heating. In another embodiment, the controller provides a high amplitude signal or current to preheat the transducer portion for write operations.


Lance Stover Photo 8

Probe With Electrostatic Actuation And Capacitive Sensor

US Patent:
7898266, Mar 1, 2011
Filed:
Jun 4, 2008
Appl. No.:
12/132665
Inventors:
Wayne Allen Bonin - North Oaks MN, US
Dadi Setiadi - Edina MN, US
Lance Eugene Stover - Eden Prairie MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G01R 27/26, G01B 5/28
US Classification:
324662, 32475507, 73105
Abstract:
A supported probe device that has a probe tip and probe body, the probe body having a sample facing surface and an opposing surface. The probe tip and a first electrode are on the sample facing surface. A second electrode is present on the probe body opposing surface. A third electrode is spaced from the second electrode, so that the second electrode is between the third electrode and the probe body. A first DC voltage source is electrically coupled to the first electrode, as is a first sensing circuit. A second DC voltage source is electrically coupled to the second electrode, and an AC voltage source electrically coupled to the third electrode. The probe body may be cantilevered.


Lance Stover Photo 9

Lubricative And Protective Thin Film

US Patent:
2007019, Aug 23, 2007
Filed:
Feb 17, 2006
Appl. No.:
11/357754
Inventors:
Mehmet Hancer - Eagan MN, US
John Brand - Burnsville MN, US
Lance Stover - Eden Prairie MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
B32B 9/04
US Classification:
428447000, 428446000, 428689000, 428698000, 428702000
Abstract:
The present invention is a lubricative and protective thin film often used within micro electromechanical systems. The film comprises an adhesion layer and a self-assembled monolayer, the self-assembled monolayer having a head group bonded to the adhesion layer and a tail group attached to the head group.


Lance Stover Photo 10

Non-Magnetic Contact Enhancement Feature

US Patent:
2008025, Oct 16, 2008
Filed:
Apr 12, 2007
Appl. No.:
11/700474
Inventors:
Ladislav R. Pust - Savage MN, US
Lars H. Ahlen - Bloomington MN, US
Edwin F. Rejda - Bloomington MN, US
David C. Seets - Shorewood MN, US
Lance E. Stover - Eden Prairie MN, US
Dian Song - Eden Prairie MN, US
Feng Y. Wang - Eden Prairie MN, US
Assignee:
Seagate Technology LLC - Scotts Valley CA
International Classification:
G11B 5/187, G11B 5/127, G11B 5/33
US Classification:
360122, 428814
Abstract:
A transducer having an external contact surface includes a writer and a contact member. The writer has a portion extendable beyond the external contact surface. The contact member surrounds at least a portion of the extendable writer portion.