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公开(公告)号：JPS62170085A
公开(公告)日：1987-07-27
申请号：JP24332486
申请日：1986-10-15
Applicant: IBM
Inventor： WANG SHERMAN SHEAU-MING , DISTEFANO THOMAS HERMAN , HOLLIS JR , JOHNSON MARK
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公开(公告)号：DE3684288D1
公开(公告)日：1992-04-16
申请号：DE3684288
申请日：1986-12-02
Applicant: IBM
Inventor： WANG SHERMAN SHEAU-MING , DISTEFANO THOMAS HERMAN , HOLLIS JR , JOHNSON MARK
Abstract: A method and apparatus for format patterning magnetic recording media with servo-control patterns is disclosed herein. The method comprises the steps of applying the control pattern using a resist in liquid form onto the media material by conventional applying techniques. A layer of a thin metallic film is then deposited over the resist and uncovered substrate areas. The resist and its overlayered metal is then removed using a liftoff technique by dissolving the resist in its particular solvent. A control pattern of deposited metallic film remains in those non-resist areas. In the alternative, the process can also use an etching bath to create the servo control pattern.
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Patent Agency Ranking
公开(公告)号：DE3872033T2
公开(公告)日：1993-02-04
申请号：DE3872033
申请日：1988-03-01
Applicant: IBM
Inventor： HOLLIS JR , O'CONNOR MICHAEL A
Abstract: An automatic assembly apparatus or robot (4) holds a pin (1) in an instrumented gripper (5, 6), moves open-loop to the "detection region" (9) in which airflow forces (7), primarily lateral forces, in the vicinity of the hole (2) may be dependably sensed (6). Relatively large lateral airflow forces in the detection region are sensed and the pin (1) is moved toward the hole (2). The airflow forces exhibit an abrupt force change as the pin reaches the insertion point (10) within the "capture region" of the hole defined by the mechanical chamfer or significantly extended as a result of the virtual chamfer of airflow through the hole. The insertion point is the point where lateral X, Y force vectors balance to a null, and where Z force readings change from complex X, Y, Z force vectors to simple Z force vectors. The controller (4) commands an open loop move to place the pin (1) within the detection region; then commands a closed loop move, using a skirt (17) around the pin or the pin itself as a probe, and sampling the force vectors until the insertion point (10) is detected; then commands a move in the Z direction to put the pin into the hole. Insertion success or failure is detected by sampling the Z force vectors for blockage by the plate, or by sampling pressure as the pin plugs the hole. Retry routines follow detection of any insertion failure.
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公开(公告)号：DE3872033D1
公开(公告)日：1992-07-23
申请号：DE3872033
申请日：1988-03-01
Applicant: IBM
Inventor： HOLLIS JR , O'CONNOR MICHAEL A
Abstract: An automatic assembly apparatus or robot (4) holds a pin (1) in an instrumented gripper (5, 6), moves open-loop to the "detection region" (9) in which airflow forces (7), primarily lateral forces, in the vicinity of the hole (2) may be dependably sensed (6). Relatively large lateral airflow forces in the detection region are sensed and the pin (1) is moved toward the hole (2). The airflow forces exhibit an abrupt force change as the pin reaches the insertion point (10) within the "capture region" of the hole defined by the mechanical chamfer or significantly extended as a result of the virtual chamfer of airflow through the hole. The insertion point is the point where lateral X, Y force vectors balance to a null, and where Z force readings change from complex X, Y, Z force vectors to simple Z force vectors. The controller (4) commands an open loop move to place the pin (1) within the detection region; then commands a closed loop move, using a skirt (17) around the pin or the pin itself as a probe, and sampling the force vectors until the insertion point (10) is detected; then commands a move in the Z direction to put the pin into the hole. Insertion success or failure is detected by sampling the Z force vectors for blockage by the plate, or by sampling pressure as the pin plugs the hole. Retry routines follow detection of any insertion failure.
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