Classifications

• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
  • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
  • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
  • G11B5/4826—Mounting, aligning or attachment of the transducer head relative to the arm assembly, e.g. slider holding members, gimbals, adhesive
  • G11B5/483—Piezoelectric devices between head and arm, e.g. for fine adjustment
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
  • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
  • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
  • G11B5/4833—Structure of the arm assembly, e.g. load beams, flexures, parts of the arm adapted for controlling vertical force on the head
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
  • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
  • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
  • G11B5/4853—Constructional details of the electrical connection between head and arm
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
  • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
  • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
  • G11B5/486—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives with provision for mounting or arranging electrical conducting means or circuits on or along the arm assembly
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
  • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
  • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
  • G11B5/4873—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives the arm comprising piezoelectric or other actuators for adjustment of the arm
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
  • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
  • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
  • G11B5/55—Track change, selection or acquisition by displacement of the head
  • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
  • G11B5/5552—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
  • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
  • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
  • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49002—Electrical device making
  • Y10T29/4902—Electromagnet, transformer or inductor
  • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
  • Y10T29/49025—Making disc drive

Definitions

• FIGs 1 A and IB are stainless steel-side and trace-side plan views, respectively, of an integrated lead, co-located dual stage actuation ("DSA”) disk drive head suspension flexure in accordance with embodiments of the invention, including the piezoelectric (“PZT”) motors;
• DSA dual stage actuation
• PZT piezoelectric
• Figures 2A and 2B are stainless steel-side and trace-side plan views, respectively, of the DSA flexure shown in FIGs. 1 A and IB, without the piezoelectric motors;
• Figures 3 A and 3B are load beam-side and flexure-side plan views
• Figures 5A and 5B are load beam-side and flexure-side isometric views, respectively, of the suspension shown in FIGs. 4A and 4B, having head slider mounted thereto;
• Figures 6 A and 6B are load beam-side and flexure side isometric views, respectively, of a tri-stage actuation disk drive head suspension with non-parallel motors according to an embodiment.
• FIG. 1 A illustrates a stainless steel-side trace-side plan view of an integrated lead, co-located dual stage actuation ("DSA") disk drive head suspension flexure according to an embodiment including the piezoelectric (“PZT”) motors.
• the flexure 12 includes a spring metal layer 14 that forms the main structure support of the flexure 12.
• a spring metal layer 14 may be formed from one or more metals including, but not limited to, stainless steel.
• the spring metal layer 14 includes a base region 16 which can be attached (e.g., by welding) to a load beam.
• the base region 16 having a central longitudinal flexure axis 17.
• the spring metal layer 14 further includes a pair of support arms 18, 19; a slider mounting region 20; and linkage members 22, 24.
• the support arms 18, 19 are laterally spaced and extend distally from the base region 16.
• the slider mounting region 20 has a slider mounting longitudinal axis 28.
• the slider mounting longitudinal axis 28 of the slider mounting region 20 is parallel with the central longitudinal flexure axis 17.
• the slider mounting region 20 includes a proximal portion 30, a distal portion 32, and a middle portion 34.
• the middle portion 34 of the slider mounting region 20 is located between the proximal portion 30 and the distal portion 32.
• the slider mounting region 20 includes a load point location 36 on the middle portion 34.
• the flexure motors 40 are each a piezoelectric element that articulates when a voltage is applied across the element to provide microactuations.
• Each motor 40 can contain an anode terminal on a first major side of the flexure motor 40 and a cathode terminal on the opposite major side of the flexure motor 40.
• a first electrical connection can be made between a trace of conductor layer 50 to the anode or cathode terminal of the flexure motor 40 and a second electrical connection can be made between the spring metal layer 14 (e.g., as ground) and the other of the anode or cathode terminal of the flexure motor 40.
• the spring metal-unsupported portion 54 includes linear portions 56 and a nonlinear portions 58 that define an interior angle 60.
• interior angle 60 is configured to be in a range including one-hundred and thirty five degrees to one-hundred and sixty degrees. For other embodiments, the interior angle 60 is greater than one-hundred and sixty degrees.
• the one or more of traces on the slider mounting region 20 include a trace 66 that terminates at a terminal pad 64 on the slider mounting region 20.
• the one or more of traces for example, include a trace 68 on the slider mounting region 20 that terminates at a terminal pad on the distal portion of the slider mounting region 20.
• the one or more traces may include at least a motor power trace that terminates at a terminal pad configured to be coupled to the motor at the distal portion of the slider mounting region and at least one of the traces is a ground trace that terminates at a terminal pad configured to be coupled to the motor at the proximal portion of the slider mounting region.
• the flexure 12 includes one or more polymer tethers extending from an end portion 33 to the linkage members 22, 24.
• the tethers are configured to act as shock limiters to provide enhance performance of the suspension.
• the tethers are configured to act as non-operational shock limiters.
• the tethers are arranged and configured to attenuate one or more resonance modes of a disk drive suspension.
• the one or more polymer tethers 35, 37 are formed from polyimide or other insulating materials including those known in the art.
• the one or more polymer tethers 35, 37 are configured to extend from the end portion 33 to the motor islands 84, 86 according to some embodiments.
• the polymer tethers 35, 37 are serpentine in shape for various embodiments.
• the one or more polymer tethers 35, 37 are formed, for various embodiments, as part of a cover coat layer of polymer.
• Figures 2A and 2B are stainless steel-side and trace-side plan views
• the first terminal pad 88, 90 is configured to have a flexure motor 40 coupled with the first terminal pad using techniques including, but not limited to, conductive adhesive, solder, and those known in the art to mechanically and electrically couple a flexure motor 40 to a terminal pad.
• the motor islands 84, 86 and the first terminal pads 88, 90 are adjacent to the distal portion 32 of the slider mounting region 20.
• a load beam 100 is mounted to the flexure 12.
• a load beam 100 is mounted to the flexure using welds at the base region 16 of the spring metal layer 14.
• the load beam 100 includes motor openings 102, 104, according to an embodiment, at least as large as the motor openings 80, 82 of the flexure 12 and the flexure motors 40 and the motor openings 102, 104 of the load beam 100 are at locations corresponding to the locations of the motor openings 80, 82 of the flexure 12 and the flexure motors 40.
• the motor openings 102, 104 enable the flexure motors 40 to be mounted to the flexure 12 through the load beam 100. This enables motors to be mounted during any stage of assembly of a disk drive head suspension.
• Figures 4A and 4B are load beam-side and flexure-side plan views
• Figures 5A and 5B are load beam-side and flexure-side isometric views, respectively, of the suspension shown in FIGs. 4A and 4B, having head slider mounted thereto.
• FIGS 6 A and 6B are load beam-side and flexure side isometric views, respectively, of a tri-stage actuation disk drive head suspension with non-parallel motors according to an embodiment.
• the tri-stage actuation disk drive head suspension includes a load beam 100, a flexure 12, a baseplate 214, and one or more baseplate motors 240 in any configuration.
• the load beam 100 is mounted to the baseplate 214 using mounting techniques including those described herein, such as welding.
• Each of the baseplate 214 and the load beam 100 can be formed from metal, such as stainless steel.
• the tri-stage suspension also includes a baseplate 214 having a baseplate motor 240 and a pseudo feature 216.
• a baseplate motor 240 mounted to the baseplate 214 is configured to move the load beam 100.
• baseplate motor 240 is implemented using techniques including those described herein.
• Pseudo feature 216 is configured to balance out the mass distribution and to the stiffness of the baseplate 214.
• the pseudo feature 216 may be manufactured separately and then affixed to baseplate 214.
• pseudo feature 216 is affixed to the baseplate 214 using techniques including, but not limited to, welding, adhesive, and other mounting techniques such as those known in the art.
• the pseudo feature 216 is formed integrally with the baseplate 214.
• the figures are not limiting.
• Other embodiments of the invention can include additional or fewer features.
• all or portions of the traces described as being unsupported can be backed by stainless steel.
• the stainless steel layer can include portions (e.g., tabs) that extend from other structures (e.g., from the slider mounting region) under the proximal and/or distal ends of the motors.
• conditional language used herein such as, among others, "can,” “could,” “might,” “can,” “e.g.,” “for example,” “such as” and the like, unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain embodiments include, while other embodiments do not include, certain features, elements and/or states.
• conditional language is not generally intended to imply that features, elements and/or states are in any way required for one or more embodiments or that one or more embodiments necessarily include logic for deciding, with or without author input or prompting, whether these features, elements and/or states are included or are to be performed in any particular embodiment.

Landscapes

• Supporting Of Heads In Record-Carrier Devices (AREA)
• Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Priority Applications (1)

Applications Claiming Priority (4)

Publications (1)

Family

ID=60787633

Family Applications (1)

Country Status (3)

Families Citing this family (9)

Citations (3)

Family Cites Families (25)

• 2017
  • 2017-06-29 US US15/638,305 patent/US10373634B2/en active Active
  • 2017-06-30 JP JP2018568695A patent/JP6952062B2/ja active Active
  • 2017-06-30 WO PCT/US2017/040350 patent/WO2018006002A1/en not_active Ceased
• 2019
  • 2019-08-05 US US16/532,370 patent/US10957349B2/en active Active

Patent Citations (3)

Also Published As

Similar Documents

Legal Events