Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1982-05-12
1984-06-05
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310320, 310366, H01L 4108
Patent
active
044531044
ABSTRACT:
A low-profile crystal package wherein the wire bonding operation from the electrode pattern of the crystal plate to the terminal posts may be accomplished without fear of fracture of the crystal plate itself. The crystal blank is positioned on a support member which in turn initially sits on a ring of indium. In this position, the crystal blank is not in contact with the split center support post whose top surface is covered with indium paste, and is supported around its periphery during wire bonding. When all the wire bonding operations are effectuated, the assembly is subjected to sufficient heat wherein the indium material will melt, which will cause the support member to be drawn downward, thereby resulting in the crystal plate being supported and fastened only by the center supports, with the periphery of the crystal plate being free to vibrate with no extraneous dampened support.
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Feder Alvin
Rapps Gary M.
Budd Mark O.
Gillman James W.
Motorola Inc.
Roney Edward M.
Warren Charles L.
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