Patent ID: 7266881

Claim:
A method to manufacture a top portion and a bottom portion for later assembly of a hermetically sealed hard disk drive comprising: lapping and polishing a front surface and a back surface of a substrate; depositing a first conductor pattern to form a plurality of interconnect traces on said front surface and back surface of said substrate; depositing a magneto-resistive material pattern to form a plurality of MR stripes on said front surface of said substrate; depositing a metal oxide pattern on said front surface and said back surface of said substrate before the creation of a plurality of vias physically connected to said plurality of interconnect traces; depositing a second conductor pattern on said front surface of said substrate to form a plurality of spindle motor stator coils of a spindle motor; mounting a plurality of ICs and at least one connector to said front surface of said substrate; bonding a spindle motor shaft in a substantially perpendicular fashion to said front surface of said substrate; bonding at least one precision washer and at least one spring type washer to said front surface of said substrate; and separating said substrate into a top portion and a bottom portion for later assembly to create a hermetically sealed hard disk drive.