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1.发明专利
公开(公告)号：JPH1055511A
公开(公告)日：1998-02-24
申请号：JP9909197
申请日：1997-04-16
Applicant: IBM
Inventor： ERPELDING A DAVID , PATTANAIK SURYA , SIMMONS RANDALL GEORGE
Abstract: PROBLEM TO BE SOLVED: To protect an MR head having an MR sensor against the damage generated by the presence of an electric field having static electricity by discharge. SOLUTION: The MR head is provided with shunts in the positions immediate near the terminals of adjacent conductive leads 18, 19 heading toward the MR sensor on the MR head across these leads. Solder overhanging parts of at least one of selected shapes are arranged adjacently to the leads in order to facilitate the removal of the shunts by causing the reflow of solder. These overhanging parts include limitation overhanging parts 30, 32 which play the role of limiting the solder within the shunt regions when the shunts are formed and an assignment part 32 which acts to transfer the solder from the shunt regions to an assigned position at the time of the next reflow of the solder and to give rise to physical breakdown in the shunt accordingly. The need for the physical removal of the solder material is eliminated.
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公开(公告)号：JPH103634A
公开(公告)日：1998-01-06
申请号：JP6271597
申请日：1997-03-17
Applicant: IBM
Inventor： ERPELDING A DAVID , PALMER DARRELL DEAN , PATTANAIK SURYA , RUIZ OSCAR JAIME
Abstract: PROBLEM TO BE SOLVED: To bear fragility, a weak impact property, etc., and to prevent strain due to compression force by providing a slider suspension assembly having a laminated load beam attaching a reinforcement member. SOLUTION: This magnetic disk data storage system contains the slider suspension assembly used for a slider 30 of a pico-size and a nano-size for a data disk file. This assembly contains the laminated load beam 20 provided with plural layers and applied so as to attach the slider 30 to one end of a side opposite to a file actuator support part. This laminated load beam 20 is provided with at least a conductor, and is provided with an electric lead wire for connecting to the slider 30. The reinforcement member 13 reinforcing the assembly is attached to the laminated load beam 20. This reinforcement member 13 is formed to a required shape by a stamping process.
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公开(公告)号：JPH11120715A
公开(公告)日：1999-04-30
申请号：JP22771698
申请日：1998-08-12
Applicant: IBM
Inventor： ARYA SATYA PRAKASH , ERPELDING A DAVID , PALMER DARRELL DEAN , PATTANAIK SURYA
Abstract: PROBLEM TO BE SOLVED: To provide the method for soldering a suspension and a lead of a converter of a miniaturized disk drive. SOLUTION: The suspension member 32 is provided with the integrated electrically conductive lead 120 extending to the rear tail part along the longitudinal direction. This lead 120 is extended beyond the tail part and electrically connected with an acceptor pad member. The distant end 135 of the lead is provided with a recessed area at the edge of a terminal for guiding the flow of the fluid solder to the joint part. This recessed area is formed into e.g. a chamfer 136, preferably to be semicircular. The tail pad is provided with a pair of tab members 134 accepted by an opening part of the acceptor pad member, for accurately aligning the lead.
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公开(公告)号：AU6284696A
公开(公告)日：1997-10-10
申请号：AU6284696
申请日：1996-06-19
Applicant: IBM , PELDING A DAVID , PALMER DARRELL DEAN , PATTANAIK SURYA , RUIZ OSCAR JAIME
Inventor： ERPELDING A DAVID , PALMER DARRELL DEAN , PATTANAIK SURYA , RUIZ OSCAR JAIME
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公开(公告)号：DE69017551T2
公开(公告)日：1995-10-05
申请号：DE69017551
申请日：1990-08-03
Applicant: IBM
Inventor： ERPELDING A DAVID , PALMER DARRELL DEAN , WILMER RICHARD KEITH
Abstract: A laminated suspension used in a data recording disk file is described which supports a negative pressure slider (66) in a manner which prevents the read/write transducer (71) on the slider from contacting the disk surface and which eliminates the effect of stiction. The laminated suspension is a flat, flexible sheet (10) of material bonded on both sides to patterned metal layers (12, 14). The suspension comprises an arm portion for attachment to the actuator support arm (66), slider portion to which the slider is attached, and a link portion interconnecting the arm and slider portions. The first metal layer is preferably stainless steel and the second metal layer is preferably copper. The arm and link portions of the stainless steel layer are spaced apart to form a hinge (43) flexible material. The portion of the copper in the hinge region is prestressed or bent so that the link portion of the laminated suspension is biased toward the disk surface. A second similar hinge region (47) is located between the link and slider portions of the laminated suspension and the copper in that hinge region is similarly bent so that only one edge of the slider contacts the disk surface when the disk is not rotating. When the disk file is turned on and the disk is at sufficient speed, the static pressure differential between opposite sides of the suspension and the slider overcome the spring forces in the two hinge regions and pull the slider into its air-bearing operational relationship with the disk surface.
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Patent Agency Ranking
公开(公告)号：DE3778290D1
公开(公告)日：1992-05-21
申请号：DE3778290
申请日：1987-10-06
Applicant: IBM
Inventor： AINSLIE NORMAN G , BREDE DWIGHT W , ERPELDING A DAVID , PATTANAIK SURYA
Abstract: In a data recording disk file a slider (16) is mechanically attached to the suspension (40) by means of reflowed solder balls (80). A pattern of solder contact pads (70) is formed on the back side of the slider and a similar pattern of solder-wettable regions (60,61,63) is formed on the suspension. Solder balls are formed on either the solder contact pads or the solder-wettable regions, the slider is located on the suspension so that the solder balls are in registration between the solder contact pads and solder-wettable regions, and the solder is heated to reflow, thereby forming solder joints (80,86) as a mechanical connection between the slider and suspension. When a thin film transducer (11,13) is formed on the slider trailing edge (26) and the suspension is a laminated type with patterned conductors (46,55), solder balls are also formed on the transducer lead terminations (19,21; 27,29) on the trailing edge and on a row of solder-wettable regions (61,63) on the suspension near the location where the trailing edge of the slider is to be located. In this embodiment, when the slider with thin film transducer, with solder balls on the lead terminations, is located over the suspension then all of the solder balls are heated. The solder balls for providing mechanical connection collapse during reflow, thereby causing the solder balls on the transducer lead terminations to come in contact with and flow together with the solder balls formed on the row of solder-wettable regions on the suspension. Thus the mechanical attachment of the slider is made simultaneously with the electrical connection of the transducer leads to the disk file read/write electronics.
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公开(公告)号：GB2295918B
公开(公告)日：1998-10-21
申请号：GB9524956
申请日：1995-12-06
Applicant: IBM
Inventor： ERPELDING A DAVID , PALMER DARREL D , RUIZ OSCAR J , PATTANAIK SURYA
Abstract: A suspension system for supporting a magnetic read/write slider comprises a load beam, a slider support member and a flexure comprised of a first flexure arm and a second flexure arm. The electrical conductors to the slider are positioned either along one or both flexure arms or adjacent to, but outside of, the second flexure arm, so as not to contribute to the stiffness of the second flexure arm. The electrical conductors are comprised of a laminated material which includes a conductor layer, such as a high strength copper alloy, a dielectric layer and a support layer. A first plurality of slots extend completely through the first flexible finger region, and a second plurality of slots extend completely through the second flexible finger region for providing regions into which the electrical conductors can move when the flexure undergoes deflections (see fig 12).
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公开(公告)号：DE69017551D1
公开(公告)日：1995-04-13
申请号：DE69017551
申请日：1990-08-03
Applicant: IBM
Inventor： ERPELDING A DAVID , PALMER DARRELL DEAN , WILMER RICHARD KEITH
Abstract: A laminated suspension used in a data recording disk file is described which supports a negative pressure slider (66) in a manner which prevents the read/write transducer (71) on the slider from contacting the disk surface and which eliminates the effect of stiction. The laminated suspension is a flat, flexible sheet (10) of material bonded on both sides to patterned metal layers (12, 14). The suspension comprises an arm portion for attachment to the actuator support arm (66), slider portion to which the slider is attached, and a link portion interconnecting the arm and slider portions. The first metal layer is preferably stainless steel and the second metal layer is preferably copper. The arm and link portions of the stainless steel layer are spaced apart to form a hinge (43) flexible material. The portion of the copper in the hinge region is prestressed or bent so that the link portion of the laminated suspension is biased toward the disk surface. A second similar hinge region (47) is located between the link and slider portions of the laminated suspension and the copper in that hinge region is similarly bent so that only one edge of the slider contacts the disk surface when the disk is not rotating. When the disk file is turned on and the disk is at sufficient speed, the static pressure differential between opposite sides of the suspension and the slider overcome the spring forces in the two hinge regions and pull the slider into its air-bearing operational relationship with the disk surface.
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公开(公告)号：SG66492A1
公开(公告)日：1999-07-20
申请号：SG1998002954
申请日：1998-08-11
Applicant: IBM
Inventor： ARYA SATYA PRAKASH , ERPELDING A DAVID , PALMER DARRELL DEAN , PATTANAIK SURYA
Abstract: A suspension member has integral electrical conductor leads which extend along its length to a rear tail section. The leads extend beyond the tail section for electrical connection with a reception pad member. The distal ends of the leads have recessed areas in the terminal edge to encourage the flow of liquid solder into the joint. The tail section has a pair of tab members which are received in apertures in the reception pad member in order align the leads correctly.
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10.发明专利
公开(公告)号：SG48522A1
公开(公告)日：1998-04-17
申请号：SG1997000892
申请日：1997-03-22
Applicant: IBM
Inventor： ERPELDING A DAVID , PATTANAIK SURYA , SIMMONS RANDALL GEORGE
Abstract: MR heads having MR sensors are protected against damage caused by electrostatic discharge or the presence of electrostatically charged fields. A shunt is provided across the adjacent conductive leads or traces to the MR sensor at a point that is immediately adjacent their termination on the MR head. A solder bridge may be used for the shunt. The solder shunt is removed prior to putting the integrated suspension on which the MR head is mounted into operation in a magnetic disk drive system. The solder shunt is removed by reflowing the solder and drawing the reflowed solder away from the leads to break electrical connection of the shunt across the adjacent leads to the MR sensor. To facilitate removing the shunt by reflowing the solder, at least one solder lobe of a chosen geometry is placed adjacent a lead. This lobe includes a confining lobe which serves to confine the solder in the shunt region when the shunt is formed, and a designated portion which serves to draw the solder to a designated location away from the shunt region upon subsequent solder reflow, thereby causing a physical break in the shunt. Physical removal of the solder material would not be required. The shunt may also be in the form of an integral bridge of conductive material interconnecting the adjacent leads, which is removed by using a laser to melt the material.
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