CN1288630C - 在粘合剂凝固过程中相对于驱动臂悬架保持硬盘微致动器和磁头对齐的方法和装置 - Google Patents

在粘合剂凝固过程中相对于驱动臂悬架保持硬盘微致动器和磁头对齐的方法和装置 Download PDF

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CN1288630C
CN1288630C CNB028112954A CN02811295A CN1288630C CN 1288630 C CN1288630 C CN 1288630C CN B028112954 A CNB028112954 A CN B028112954A CN 02811295 A CN02811295 A CN 02811295A CN 1288630 C CN1288630 C CN 1288630C
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actuator
suspension element
actuator component
micro
shim elements
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CN1513170A (zh
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姚明高
解贻如
白石一雅
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SAE Magnetics HK Ltd
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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition 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
    • G11B5/54Disposition 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
    • G11B5/55Track change, selection or acquisition by displacement of the head
    • G11B5/5521Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5552Track 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
    • G11B5/5556Track 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 with track following after a "seek"
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition 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
    • G11B5/4806Disposition 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
    • G11B5/4826Mounting, aligning or attachment of the transducer head relative to the arm assembly, e.g. slider holding members, gimbals, adhesive
    • G11B5/483Piezoelectric devices between head and arm, e.g. for fine adjustment
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/4902Electromagnet, transformer or inductor
    • Y10T29/49021Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49027Mounting preformed head/core onto other structure
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/4902Electromagnet, transformer or inductor
    • Y10T29/49021Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49027Mounting preformed head/core onto other structure
    • Y10T29/4903Mounting preformed head/core onto other structure with bonding
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/53Means to assemble or disassemble
    • Y10T29/5313Means to assemble electrical device
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/53Means to assemble or disassemble
    • Y10T29/5313Means to assemble electrical device
    • Y10T29/53165Magnetic memory device

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  • Supporting Of Heads In Record-Carrier Devices (AREA)

Abstract

公开了一种系统和方法,用于在连接使用的粘合剂凝固过程中,保持硬盘微执行器和磁头对于驱动臂悬架的相对位置的方法和装置。

Description

在粘合剂凝固过程中相对于驱动臂悬架 保持硬盘微致动器和磁头对齐的方法和装置
技术领域
本发明涉及硬磁盘驱动器。更具体地说,本发明涉及在粘合剂凝固过程中保持硬盘微致动器和磁头与驱动臂悬架耦合的正确对齐的系统。
背景技术
现有技术使用了不同的方法来提高硬盘驱动器的记录密度。图1提供了用来读取和写入硬磁盘的一种典型驱动臂的图例。典型地,音圈马达(VCM)102用于控制硬盘驱动器臂104通过硬磁盘106的运动。如美国专利6,198,606中所描述的,因为仅由VCM102定位记录头108时所存在的固有容差(动态运行),现利用微致动器110来“微调”记录头108位置。VCM102用于粗调,而微致动器则在更小的范围内修正位置,以补偿VCM102的容差(利用臂104)。这使得可记录磁道宽度可以更小,从而增加了硬盘驱动器的“每英寸磁道”(TPI)数(增加驱动器密度)。
图2提供了如本领域中使用的一种微致动器的图例。典型地,滑块202(包含读/写磁头;未示出)用于在硬盘表面106(参看图1)上方保持规定的浮动高度。微致动器具有连接支持设备206和滑块包容单元208的柔性梁204,使得滑块202可以独立于驱动臂104(参看图1)运动。可使用电磁部件或电磁/铁磁部件(未示出)来细微地调整该滑块/头202相对驱动臂104(参看图1)的方向和位置。
粘合剂,如环氧树脂,可用来物理连接部件,如微致动器,和其它部件,如磁头(滑块)或驱动臂悬架。因为粘合剂如环氧树脂凝固需要一定时间,在该过程中该粘合剂是稍微流动的,所以在适当粘合稳固所需要的夹紧力的作用下,被粘合的部件有可能会在物理上偏移合适的相对定位。
发明内容
因此,希望有一种系统,在粘合剂凝固过程中能保持硬盘微致动器和磁头与驱动臂悬架耦合的正确对齐,并拥有其它优点。
根据本发明的第一方面,提供了将致动器元件连接到悬架元件上的系统,包含:
垫片元件,将该垫片元件放在致动器元件和悬架元件之间的第一位置上,用于在位于所述致动器元件和所述悬架元件之间的第二位置上的粘合剂凝固的过程中保持致动器元件相对于悬架元件的相对定位。
根据本发明的第二方面,提供了将致动器元件连接到悬架元件上的方法,包含:
将垫片元件放在致动器元件和悬架元件之间的第一位置上,用于在位于所述致动器元件和所述悬架元件之间的第二位置上的粘合剂凝固的过程中保持致动器元件和相对于悬架元件的相对定位。
附图说明
图1提供了一种如本领域中使用的用来读取和写入硬磁盘的驱动臂的图例。
图2提供了一种如本领域中使用的微致动器的图例。
图3提供了一种根据本发明原理带有“U”型微致动器的硬盘驱动器磁头万向架组件(HGA)的图例。
图4提供了一种根据本发明原理带有“U”型微致动器的磁头(和滑块)的详细图例。
图5提供了一种“U”型微致动器的图例,用来根据本发明的原理作进一步解释。
图6说明了根据本发明的原理连接微致动器和悬架的过程。
图7说明了根据本发明原理的垫片的两种放置方法。
具体实施方式
图3提供了一种根据本发明原理带有“U”型微致动器的硬盘驱动器磁头万向架组件(HGA)的图例。在一种实施例中,滑块(带有读/写头)302在两点304上粘结到“U”型微致动器306上。另外,在一种实施例中,“U”型微致动器在氧化锆支撑框架(致动器基座/底部臂)308的每一侧有一个压电PZT(压电式换能器)梁(臂)307。如以下所述,该微致动器连接到臂悬架310上并由其支撑。在其它实施例中,该支撑框架308由金属例如铝,或聚合体如聚乙烯或聚酯制成。
图4提供了一种根据本发明原理带有“U”型微致动器404的磁头(和滑块)402的详细图例。PZT材料具有各向异性结构,因此正负离子之间的电荷分离提供了电偶极子反应。当在极化压电材料两端施加电势时,外斯域(Weiss domains)与电压成正比地增强了它们的对准(alignment),从而导致了PZT材料的结构变形(如局部膨胀/收缩)。PZT结构406弯曲(一致地),粘合到PZT结构406上的氧化锆臂408也弯曲,使得头/滑块402相对微致动器404调整位置(用于磁头的精调)。如以下所述,底部臂420和悬架舌片412连接(通过粘合剂,如环氧树脂),从而保持悬架410的定位。
图5提供了一种“U”型微致动器的图例,用来根据本发明的原理作进一步解释。如上所述,当在极化压电材料两端施加电势时,PZT材料产生了结构变形(即局部膨胀/收缩)。由于PZT结构506弯曲(一致地),粘合到PZT结构506上的氧化锆臂508也弯曲,使得头/滑块(未示出)相对微致动器调整其位置(用于磁头的精调)。
图6说明了根据本发明的原理连接微致动器和悬架的过程。如图6a和图6b所示(底视图),在一个实施例中,在微致动器602的底部臂608上使用粘合剂606如环氧树脂,将该底部臂608和磁头(滑块)604在两处603粘合起来。如图6c所述,使用如聚酯,聚乙烯或金属(金属薄片)材料的垫片610来保持微致动器602(和滑块604)与悬架612之间的相对对齐。具体地说,在粘合剂凝固过程中,该垫片610防止微致动器602和滑块604偏移,而使得它们在粘合剂变硬后和悬架612的悬架舌片614过于接近(在夹紧力616下),从而防止微致动器602/滑块604和悬架舌片614之间的潜在干扰(粘滑问题)。如图6d所示,将微致动器602和悬架舌片614紧配粘合时,在凝固过程中施加一些夹紧力616,以提供适当的粘合稳固。垫片610保持正确的相对对齐,直到粘合剂606凝固。
在一种实施例中,在微致动器602和悬架舌片614用粘合剂606紧配后,将垫片610插入微致动器602/滑块604和悬架舌片614之间。在一种可选实施例中,将垫片610放在悬架舌片614上的合适位置,然后将微致动器602(以及所附的滑块604)和悬架舌片614粘合,将垫片610夹在中间。如图6e所示,粘合剂606/603完全凝固以后,将垫片取出。图6e提供了该组合设备的侧面图,用来说明微致动器602/603和悬架舌片614之间的期望间距。
图7说明了根据本发明原理的垫片放置的两种方法。在一种实施例中,首先将微致动器702装在固定设备704内,参见图705。将垫片706放在微致动器702上方,参见图708,然后参见图710,将悬架712粘合到微致动器702上,将垫片706夹在中间。当粘合剂完全凝固以后,将垫片706取出714。
在一种可选实施例中,首先将微致动器702装在固定设备704内,参见图716。然后在微致动器702和悬架712用粘合剂紧配之后,将垫片706插入微致动器702和悬架712之间,参见图718。当粘合剂完全凝固以后,将垫片706取出,参见图720。
尽管在此详细举例并说明了几种实施例,但是应当理解不背离本发明的精神和预计范围,上述说明适用于本发明的修改和变更。

Claims (22)

1.将致动器元件连接到悬架元件上的系统,包含:
垫片元件,将该垫片元件放在致动器元件和悬架元件之间的第一位置上,用于在位于所述致动器元件和所述悬架元件之间的第二位置上的粘合剂凝固的过程中保持致动器元件相对于悬架元件的相对定位。
2.如权利要求1所述的系统,进一步包含:
滑块,通过粘合剂将其粘结在所述致动器元件上,其中所述垫片元件位于所述滑块和所述悬架元件之间,用以在粘合剂凝固过程中,保持该滑块和该致动器元件与该悬架元件的相对定位。
3.如权利要求1所述的系统,其中所述致动器元件是微致动器。
4.如权利要求3所述的系统,其中所述微致动器是压电U型微致动器。
5.如权利要求1所述的系统,其中所述悬架元件是悬架舌片。
6.如权利要求1所述的系统,其中所述垫片元件是聚酯薄膜。
7.如权利要求1所述的系统,其中所述垫片元件是聚乙烯薄膜。
8.如权利要求1所述的系统,其中所述垫片元件是金属薄膜。
9.如权利要求1所述的系统,其中所述粘合剂是环氧树脂。
10.如权利要求1所述的系统,其中将所述致动器元件和所述悬架元件在所述第一位置粘合,然后将所述垫片元件插入所述致动器元件和悬架元件之间的所述第二位置,直到粘合剂完全凝固后,才将垫片元件取出。
11.如权利要求1所述的系统,其中将所述垫片放在悬架上的所述第二位置,然后将所述致动器元件和悬架元件在所述第一位置上粘合,直到粘合剂完全凝固后,才将垫片元件取出。
12.将致动器元件连接到悬架元件上的方法,包含:
将垫片元件放在致动器元件和悬架元件之间的第一位置上,用于在位于所述致动器元件和所述悬架元件之间的第二位置上的粘合剂凝固的过程中保持致动器元件和相对于悬架元件的相对定位。
13.如权利要求12所述的方法,进一步包含:
将一个滑块用粘合剂粘合到所述致动器元件,其中所述垫片元件位于所述滑块和所述悬架元件之间,用以在粘合剂凝固过程中,保持该滑块和致动器元件与悬架元件的相对定位。
14.如权利要求12所述的方法,其中所述致动器元件是微致动器。
15.如权利要求14所述的方法,其中所述微致动器是压电U型微致动器。
16.如权利要求12所述的方法,其中所述悬架元件是悬架舌片。
17.如权利要求12所述的方法,其中所述垫片元件是聚酯薄膜。
18.如权利要求12所述的方法,其中所述垫片元件是聚乙烯薄膜。
19.如权利要求12所述的方法,其中所述垫片元件是金属薄膜。
20.如权利要求12所述的方法,其中所述粘合剂是环氧树脂。
21.如权利要求12所述的方法,其中将所述致动器元件和该悬架元件在所述第一位置粘合,然后将所述垫片元件插入致动器元件和悬架元件之间的所述第二位置,直到粘合剂完全凝固后,才将该垫片元件取出。
22.如权利要求12所述的方法,其中将所述垫片置于悬架上的所述第二位置,然后将致动器元件和悬架元件在所述第一位置上粘合,直到粘合剂完全凝固后,才将该垫片元件取出。
CNB028112954A 2002-04-09 2002-04-09 在粘合剂凝固过程中相对于驱动臂悬架保持硬盘微致动器和磁头对齐的方法和装置 Expired - Fee Related CN1288630C (zh)

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CN1513170A (zh) 2004-07-14
WO2003088215A1 (en) 2003-10-23

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