HEAD GIMBAL ASSEMBLY AND FIXING METHOD OF BASE PLATE AND CARRIAGE ARM
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United States of America Patent
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app pub date -
Aug 4, 2010
filing date -
May 14, 2008
priority date (Note) -
Abandoned
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Abstract
According to one embodiment, a head gimbal assembly includes: base plate body; flexure; through hole passing through the base plate body; cylindrical base that upstands from the front surface of the base plate body, and has a first inner diameter; a cylindrical flange that continues to the base around the through hole and has a second inner diameter smaller than the first inner diameter; and inner wall surface that is defined by the flange and extends along a cylindrical surface formed by a generating line parallel to a central axis of the through hole. A ratio of a thickness T of the flange defined along a virtual plane orthogonal to the central axis of the through hole to a length L of the inner wall surface defined in a direction parallel to the central axis of the through hole is set to 1.5 or less.
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