Methodology for fabricating sliders for use in glide head device

Metal working – Method of mechanical manufacture – Electrical device making

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296037, 296038, 2960312, 2960315, 2960316, 360103, 360104, 451 5, 451 28, 451 41, G11B 5127, H04R 3100

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06112401&

ABSTRACT:
A method is provided for fabricating a slider out of a production piece slider blank so that the slider may be used in a glide head assembly that is operative with a test system to detect a presence of asperities on a moving surface. Broadly, this method comprises configuring an air bearing structure on the production piece slider blank to form a working production piece having an unpolished air bearing surface and an outer sidewall surface which intersects the unpolished air bearing surface at a pheripheral edge. The unpolished air bearing surface is lapped to form a polished air bearing surface which is microfinished to a selected ABS Ra value. A region of the outer sidewall surface adjacent to the pheripheral edge is also lapped to form a sidewall margin area that is microfinished to a selected sidewall Ra value that is within a range of about ten times the selected ABS Ra value, thereby forming a finished production piece.

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