Derek J Schanil

US Patent:

7303636, Dec 4, 2007

Filed:

Oct 16, 2003

Appl. No.:

10/687158

Inventors:

Hryhory T. Koba - Hutchinson MN, US
Gary L. Hoikka - Cokato MN, US
Derek J. Schanil - Watkins MN, US
Brett T. Holaway - Cosmos MN, US

Assignee:

Hutchinson Technology Incorporated - Hutchinson MN

International Classification:

B08B 6/00

US Classification:

134 1, 3602454, 3602453, 360255

Abstract:

A method of cleaning an contaminated surface on a head suspension with laser energy. A laser beam is patterned such that a single pulse extends across the entire contaminated surface. One or more pulses of the laser energy is applied to the contaminated surface sufficient to melt the contaminated surface. The melting serves to polish, smooth and/or reshape the contaminated surface.

US Patent:

7275408, Oct 2, 2007

Filed:

Apr 8, 2003

Appl. No.:

10/409660

Inventors:

Senthil Balasubramaniam - Rocky Hill CT, US
Trent A. Johnson - Hutchinson MN, US
Derek J. Schanil - Watkins MN, US
Roger W. Schmitz - Hutchinson MN, US
Stephen P. Toperzer - Hutchinson MN, US
Hryhory T. Koba - Hutchinson MN, US
Timothy G. Rice - Waconia MN, US
Paul E. Schwing - Waconia MN, US
Blair M. Erickson - Waconia MN, US
Mohamed Salah H. Khlif - Fridley MN, US

Assignee:

Hutchinson Technology Incorporated - Hutchinson MN

International Classification:

B21D 37/16

US Classification:

723421, 7234294

Abstract:

Apparatus and method for simultaneously adjusting the gram load and radius geometry height of a head suspension by scanning a spring region of the head suspension with a laser beam. The incremental height difference between left and right legs of a spring region of the suspension may also be concurrently corrected. Apparatus and method for measuring the radius geometry height are provided by two or more non-contacting optical probes. A nitrogen atmosphere may be maintained in the region scanned.