Metal working – Means to assemble or disassemble – Work-supported apparatus
Reexamination Certificate
2006-01-17
2006-01-17
Chang, Richard (Department: 3729)
Metal working
Means to assemble or disassemble
Work-supported apparatus
C029S832000, C029S830000, C029S739000, C029S740000, C029S281100, C029S281400, C029S281500, C439S021000, C439S024000, C439S066000
Reexamination Certificate
active
06986191
ABSTRACT:
A bolster plate is attached to a printed circuit board and acts as a stiffener that reduces bending in the overall assembly during the attachment of an integrated circuit chip to the printed circuit board under a heavy applied load. The bolster plate is provided with a shim that compensates for bending of the bolster plate under load, thereby preventing damage to the integrated circuit chip. The dimensions of the shim may be selected according to computer model results representing bow deformation in the bolster plate without the shim.
REFERENCES:
patent: 6658729 (2003-12-01), Brodsky
Chang Richard
Hewlett--Packard Development Company, L.P.
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