Dynamic magnetic information storage or retrieval – Fluid bearing head support – Disk record
Reexamination Certificate
2005-03-22
2005-03-22
Letscher, George (Department: 2653)
Dynamic magnetic information storage or retrieval
Fluid bearing head support
Disk record
Reexamination Certificate
active
06870707
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.
REFERENCES:
patent: 4567104 (1986-01-01), Wu
patent: 4670366 (1987-06-01), Wu
patent: 4894303 (1990-01-01), Wu
patent: 4938841 (1990-07-01), Shahar et al.
patent: 4939603 (1990-07-01), Inumochi
patent: 5078771 (1992-01-01), Wu
patent: 5200868 (1993-04-01), Chapin et al.
patent: 5285517 (1994-02-01), Wu
patent: 5329689 (1994-07-01), Azuma et al.
patent: 5404256 (1995-04-01), White
patent: 5490026 (1996-02-01), Dorius et al.
patent: 5568981 (1996-10-01), Nepela et al.
patent: 5606476 (1997-02-01), Chang et al.
patent: 5704715 (1998-01-01), Chang et al.
patent: 5754367 (1998-05-01), Chang et al.
patent: 5777825 (1998-07-01), Dorius
patent: 5851701 (1998-12-01), Rolson
patent: 5853959 (1998-12-01), Brand et al.
patent: 5925261 (1999-07-01), Burbank
patent: 5928813 (1999-07-01), Krivokapic et al.
patent: 5939227 (1999-08-01), Smith
patent: 6033766 (2000-03-01), Block et al.
patent: 6107000 (2000-08-01), Lee et al.
patent: 6534221 (2003-03-01), Lee et al.
patent: 0 129 336 (1984-12-01), None
Product data sheet, Canyon Materials, Inc., “LDW-Glass Photomask Blanks”, pp. 1-4; undated.
Berg Lowell J.
Olim Moshe
Qian Weimin
Stover Lance E.
Zheng Lanshi
Letscher George
Magee Christopher R.
Seagate Technology LLC
Westman Champlin & Kelly
LandOfFree
Disc head slider having vertically contoured features and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Disc head slider having vertically contoured features and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disc head slider having vertically contoured features and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3412481