Tool for certifying a head-gimbal assembly

Details Tool for certifying a head-gimbal assembly Tool for certifying a head-gimbal assembly

2007-03-27

2007-03-27

Kim, Paul D. (Department: 3729)

Metal working

Means to assemble or disassemble

Means to assemble electrical device

C029S593000, C029S603010, C029S603090, C029S602100, C324S210000, C324S212000, C356S340000, C356S329000, C356S365000, C356S369000, C451S005000, C451S041000

Reexamination Certificate

active

10309405

ABSTRACT:
A device and method for testing a slider of a head-gimbal assembly during disc drive manufacturing. The device includes a test disc, an actuator arm and a control module. The test disc has a first circumferential area for detecting contact between the slider and the test disc and a second circumferential area for burnishing sliders that contact the first circumferential area as the test disc rotates at or above the predetermined velocity. The head-gimbal assembly is affixed to a support, or flexure, on the actuator arm such that the slider is operable to move between an inner diameter and an outer diameter of the test disc. The control module controls rotation of the test disc and movement of the actuator arm, and thus the slider, relative to the test disc. The control module monitors the slider-disc interface for contact therebetween. If contact is detected, the slider is either burnished or the head-gimbal assembly is discarded altogether.

REFERENCES:
patent: 4845816 (1989-07-01), Nanis
patent: 5063712 (1991-11-01), Hamilton et al.
patent: 5067037 (1991-11-01), Ananth et al.
patent: 5200867 (1993-04-01), Albrecht et al.
patent: 5267104 (1993-11-01), Albrecht et al.
patent: 5292585 (1994-03-01), Ohnuki et al.
patent: 5431592 (1995-07-01), Nakata
patent: 5562965 (1996-10-01), Gui et al.
patent: 5593341 (1997-01-01), Gonnella et al.
patent: 5658191 (1997-08-01), Brezoczky
patent: 5659447 (1997-08-01), Gregory et al.
patent: 5708540 (1998-01-01), Ananth et al.
patent: 5758406 (1998-06-01), Hunsaker et al.
patent: 5782680 (1998-07-01), Pilsan
patent: 5818592 (1998-10-01), Womack et al.
patent: 5825181 (1998-10-01), Schaenzer et al.
patent: 5841608 (1998-11-01), Kasamatsu et al.
patent: 5980369 (1999-11-01), Burga et al.
patent: 6003364 (1999-12-01), Yao et al.
patent: 6040958 (2000-03-01), Yamamoto et al.
patent: 6057975 (2000-05-01), Yaeger et al.
patent: 6097559 (2000-08-01), Ottesen et al.
patent: 6230380 (2001-05-01), Wang et al.
patent: 6322431 (2001-11-01), Schaenzer et al.
patent: 6493184 (2002-12-01), Smith
patent: 6503132 (2003-01-01), Ekstrum et al.
patent: 6548140 (2003-04-01), Gui et al.
patent: 05139076 (1993-06-01), None
“Shock analysis of MEMS actuator integrated with HGA for operational and non-operational HDD”; Lim, B.B.; Yang, J.P.; Chen S.X.; Mou, J.Q.; Lu, Y.; Magnetic Recording Conference, Aug. 27-29, 2002; pp. WE-P-18-01-WE-P-18-02.
A.M. Homola et al., “Overcoats and Lubrication for Thin Film Disks,”MRS Bulletin, Mar. 1990, p. 45-52.
C. Mathew Mate, “Application of disjoining and capillary pressure to liquid lubricant films in magnetic recording,”J. Appl. Phys., 72(7), Oct. 1, 1992, p. 3084-3090.
C. Hardie et al., “Analysis and Performance Characteristics of The Seagate Advanced Air Bearing Slider,”IEEE Transactions of Magnetics, 30(2), Mar. 1994, p. 424-432.
McHugh et al., “Supercritical Fluids,”Encyclopedia of Polymer Science and Engineering, vol. 16, 2ndEdition 1989 John Wiley & Sons, Inc., p. 368-399.

Affiliated with

Also associated with

Rating

Tool for certifying a head-gimbal assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tool for certifying a head-gimbal assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tool for certifying a head-gimbal assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3743873