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Disk drive including a vibration damping system having a compressible foam and mass damper fixed adjacent to the outer surface of a printed circuit board for reducing noise and vibration

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G11B-033/08
출원번호 US-0444016 (1999-11-19)
발명자 / 주소
  • Butler Walter W.
  • Cheng Chunjer C.
출원인 / 주소
  • Western Digital Technologies, Inc.
대리인 / 주소
    Kim
인용정보 피인용 횟수 : 74  인용 특허 : 7

초록

A disk drive including a head disk assembly, a planar printed circuit board and a vibration damping system. The vibration damping system is fixed adjacent the outer surface of the printed circuit board and includes an external planar member of compressible foam composition and a substantially-planar

대표청구항

[ We claim:] [1.]1. A disk drive comprising, in combination:a) a head disk assembly including a base casting comprising a sidewall that defines a base area within the peripheral edge of the assembly;b) a planar printed circuit board including opposed inner and outer surfaces, the board being fixed w

이 특허에 인용된 특허 (7)

  1. Woldemar Christopher Michael ; Mylabathula Enoch, Acoustic noise control in a disc drive.
  2. Andress Jeffrey D. ; Pottebaum Kenneth L., Constrain layer damping of a disc drive printed wiring assembly.
  3. Kawagoe Seiji (Tokyo JPX) Kaida Katsuhiko (Tokyo JPX), Disk drive apparatus incorporating circuitry into housing.
  4. Tacklind Thomas A. (San Martin CA) Boyle Timothy (Santa Clara CA) Caldeira Robert A. (Santa Cruz CA), Disk drive with reduced acoustic noise.
  5. Mihara Takahisa (Sagamihara JPX) Samma Shoji (Yokohama JPX) Saito Sigeo (Sagamihara JPX), Magnetic disc device.
  6. Koenck Steven E. (Cedar Rapids IA) Schultz Darald R. (Cedar Rapids IA), Shock absorbent packaging apparatus.
  7. Wyler Gregory T. (Winchester MA), Silent air cooled computer having a hard disk drive with an acoustic shield and a heat sink arranged exterior to the dri.

이 특허를 인용한 특허 (74)

  1. Acciardi, Edward G.; Michael, A. David; Haynes, Jonathan S.; Mann, Kimberly C.; Leis, Michael D., Acoustic damping pad that reduces deflection of a circuit board.
  2. Huston,Dryver R.; Esser,Brian; Plumpton,James O., Active vibration damping system.
  3. Nguyen, Daniel T.; Sill, Kevin R., Actuator pivot assembly including a bonding adhesive barrier configured to reduce contamination.
  4. Chen, Yih-Jen D.; McNab, Robert J., Apparatus for manufacturing piezoelectric actuators.
  5. Janik,Peter Roman; Jones,Matthew Wesley; Pierce,Glen Edward; Wang,Fei (Peter); Zhao,Liyang (Leon), Assembly rail corners shaped to reduce shock.
  6. Price, Kirk Barrows; Shindo, Hitoshi, Card insulator with provision for conformance to component height changes.
  7. Nguyen, Daniel T.; Watson, Scott E.; Liem, Andre Y.; Garbarino, Jonathan M.; Weiher, Joshua P., Coined VCM tab to limit cover deflection under pinch load.
  8. Westerinen, William J.; Zhang, Simon Yingchun, Computer system with noiseless cooling.
  9. Bernett, Frank William, Damped protective cover to improve disc drive acoustics.
  10. Lim,BengSee; Chee,WaiOnn; Lee,PeiKoh; Pang,Jimmy TzeMing; Ong,BoonSeng; Jierapipatanakul,Niroot, Data storage device with shock sensor mounted on circuit board and provided adjacent shield and disc assembly protrusions.
  11. Tian, Jifang; Li, Hongqi; Flynn, William; Hu, Xiaoping; Obregon, Francisco, Devices and methods for system-level disk drive vibration and shock testing.
  12. Bernett, Frank William; Anderson, Kurt Michael, Disc drive protective cover to improve shock robustness.
  13. Bahirat, Shirish Dnyaneshware; Lapp, David Ray, Disc drive spindle motor having a damper on a bottom surface of the spindle motor.
  14. Lee, Yu-Min; Zheng, Hao; Griggs, Ian; Tran, Gregory, Disk drive actuator having a radially stepped pivot bore.
  15. Codilian, Raffi, Disk drive comprising a coating bonded to a printed circuit board assembly.
  16. Codilian, Raffi; Ferris, Timothy A., Disk drive employing commutation phase modulation and current modulation of a spindle motor.
  17. Timothy A. Ferris ; Raffi Codilian, Disk drive employing spindle motor commutation time variation for reducing acoustic noise.
  18. Mani Biswas, Mousumi, Disk drive filter including fluorinated and non-fluorinated nanopourous organic framework materials.
  19. Gustafson, John R.; Patel, Mukesh, Disk drive having a conformal peripheral foil seal having an opening covered by a central metal cap.
  20. Horasart, Theerapong; Bupphasawan, Meatasit; Chaiboon, Chinorot, Disk drive having a stationary plate between disks with grooves adjacent fastener holes.
  21. Smyth, Nicholas D.; Myers, David K., Disk drive having a top cover channel vented to a central cavity via a hole through a bottom land.
  22. Smyth, Nicholas D.; Myers, David K., Disk drive having a top cover channel vented to a central cavity via a peripheral clearance gap.
  23. Ojeda, Valentin; Ali, David; Berding, Keith R., Disk drive having an acoustic damping assembly with an acoustic barrier layer.
  24. Ojeda, Valentin; Ali, David; Berding, Keith R., Disk drive having an acoustic damping shield assembly with an acoustic barrier layer.
  25. Ali, David; Sevier, Claire-Nechol W. E., Disk drive having cover assembly which compresses a foam member between substantially planar rigid members.
  26. Pan, Tzong-Shii; Chen, Yih-Jen Dennis; Shum, Wing Chun, Disk drive head gimbal assembly having a flexure tail with a dielectric layer that has regions of lesser thickness.
  27. Pan, Tzong-Shii; Zhang, Cliff, Disk drive head stack assembly having a flexible printed circuit with bond pads having reduced capacitance.
  28. Chen, Yih-Jen Dennis; Liu, Yanning; Teo, Kia Moh, Disk drive head suspension tail with a noble metal layer disposed on a plurality of structural backing islands.
  29. Chen, Yih-Jen Dennis; Liu, Yanning; Teo, Kia Moh, Disk drive head suspension tail with a noble metal layer disposed on a plurality of structural backing islands.
  30. Chen, Yih-Jen Dennis; Liu, Yanning; Teo, Kia Moh, Disk drive head suspension tail with ground pad outside of bonding region.
  31. Chen, Yih-Jen D.; Pan, Tzong-Shii, Disk drive head suspension tail with stiffened edge alignment features.
  32. Chen, Yih-Jen D.; Pan, Tzong-Shii, Disk drive head suspension tail with stiffened edge alignment features.
  33. Chen, Yih-Jen Dennis; Pan, Tzong-Shii, Disk drive head suspension with a dual dimple and a flexure tongue with a piezoelectric microactuator.
  34. Kloeppel, Klaus; Ilagan, Ronald G.; Nguyen, Diep L., Disk drive spindle with fluid journal bearing having increased radial clearance in axial end regions.
  35. Pan, Tzong-Shii, Disk drive system.
  36. Parker, Joshua; Petersen, Frederic C.; Couture, Shawn P.; Kuniyil, Prabheesh Balakrishnan; Nykanen, Bob A., Disk drive tolerance ring with edge rounding from opposite major faces.
  37. Hanke,Frederick J.; Yamada,Wayne M.; Watkins,Norman; Ali,David, Disk drive with cover including a metal layer and a polymer layer with a polymer layer feature.
  38. Sill, Kevin R.; Little, Aaron D., Disk drive with self sealing screw attachment of actuator pivot.
  39. Gustafson, John R.; Patel, Mukesh, Disk drive with slow acting desiccant.
  40. Kloeppel, Klaus, Grooved cylindrical seal with increased radial clearance for reduced cost disk drive spindle.
  41. Casey, Shawn E.; Niss, David W., Hard disk drive (HDD) mounting system for shock and vibration.
  42. Byun, Yong-kyu; Hong, Min-pyo; Park, No-yeol; Choi, Byoung-gyou, Hard disk drive assembly, mounting structure for hard disk drive, and mobile phone adopting the mounting structure.
  43. Le, Lynn Bich-Quy; Hitchner, Thomas J., Hard disk drive enclosure base with a helium sealed gasket.
  44. Le, Lynn Bich-Quy; Hitchner, Thomas J., Hard disk drive enclosure base with feed through flexure design and accompanying flexure.
  45. Shum, Wing Chun; Liu, Yanning; Scura, John E., Head gimbal assembly having a flexure tail with cover layer standoff islands.
  46. Pan, Tzong-Shii; Ho, Shufun, Head stack assembly with a flexible printed circuit having a mouth centered between arms.
  47. Pan, Tzong-Shii, Head suspension having a flexure tail with a covered conductive layer and structural layer bond pads.
  48. Sievers,Ryan Andrew; Sorrell,Jason Allen, Housing with a rail shaped to reduce impact damage.
  49. Casey, Shawn E.; Tian, Jifang; Campbell, Tegan; Li, Hongqi; Flynn, William, Information storage device with a damping insert sheet between a housing bay and a disk drive.
  50. Hanke, Frederick J., Information-storage device including an oxygen absorbing device.
  51. Peter R. Janik ; Robert A. Hanson, Insert for dampening acoustic vibration and shielding magnetic flux for use in a disc drive.
  52. Kuribara, Hirofumi, Insulating member and disk device with the same.
  53. Davidson, Marc; Myers, David K.; Willis, Terrance J., Magnetic head separator connected to a ramp.
  54. Davidson, Marc; Myers, David K.; Willis, Terrance J., Magnetic head separator fin material to prevent particulate contamination on slider.
  55. Novotny, Vlad; Berding, Keith R., Magnetic recording drives with active photocatalytic filtration.
  56. Daniel, Matthew; Kovinskaya, Svetlana I., Method and apparatus for fine tuning disc drive cover to improve acoustical performance.
  57. Perlas, Joseph A.; Vangal-Ramamurthy, Jambunathan, Method of imbalance correction using a grooved disk clamp.
  58. Pan, Tzong-Shii; Magsombol, Fernando A., Method of manufacturing a disk drive head gimbal assembly having a flexure tail with folded bond pads.
  59. Daniel, Mathew; Kovinskaya, Svetlana I., Multi-layer housing structure with tuned layers using hypothetical modeling.
  60. Heaton, Daniel M.; Trammell, Curtis A.; Wood, Roy L.; Stricklin, John D.; Treleven, Gary A., Parallel spring design for acoustic damping of a disc drive.
  61. Nguyen, Diep L.; Ilagan, Ronald G.; Kloeppel, Klaus, Rotary spindle having a disk clamp bottom land facing and in contact with a shaft top land.
  62. Watson, Scott E.; Lee, Yau-Shing; Hitchner, Thomas J.; Myers, David K., Slim form factor disk drive comprising disk drive enclosure having an insular raised region.
  63. Davidson, Marc; Krishnan, Varuvadivelan; Tan, Siu Ken; Kok, Kin Lim, Sloping transition on a ramp of a hard disk drive.
  64. Dougherty, Mitchell D., Spindle motor magnet diameter increase above head plane.
  65. Smyth, Nicholas D.; Nguyen, Daniel T.; Myers, David K., Storage device with a cover supporting portion.
  66. Smyth, Nicholas D.; Nguyen, Daniel T.; Myers, David K., Storage device with a cover supporting portion.
  67. Liu, Yanning; Shum, Wing C.; Scura, John E., Suspension assembly having a microactuator electrically connected to a gold coating on a stainless steel surface.
  68. Liu, Yanning; Shum, Wing Chun; Scura, John E., Suspension assembly having a microactuator electrically connected to a gold coating on a stainless steel surface.
  69. Seymour, Mark S.; Dougherty, Mitchell D.; Banshak, Jr., Walter G.; Hales, Geoffrey A., Suspension clamp for clamping a disk drive suspension to an actuator arm.
  70. Tafreshi, Shahriar A.; Lee, Yu-Min, Tamper-evident seals having adhesive-free areas to minimize rework time.
  71. Heo, Baekho; Weiher, Joshua P., Threaded disk clamping element with step on disk contact surface.
  72. Tian, Jifang; Yang, Jian; Yang, Qiang, Ultra-thin HDD embedded disk clamp design.
  73. Ichise, Yuki; Watanabe, Takayuki; Hirano, Takeshi; Yoshioka, Akinori, Vehicle-air-conditioner electric compressor.
  74. Kang, Seong-Woo; Hwang, Tae-Yeon; Han, Yun-Dik; Son, Young; Jeong, Woocheol, Wave stringer for controlling acoustic noise and shock vibration in a storage device.
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