Constraining ring for use in electronic packaging

Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices

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361719, 361720, 361761, 361764, 361766, 361768, 361771, 428901, 257701, 257702, 257706, 174255, 174257, 174258, 438118, 438125, H05K 702, H05K 103, H05K 109, H05K 116

Patent

active

060116978

ABSTRACT:
A constraining ring increases the modulus of an interconnect substrate to maintain flatness of the substrate. The constraining ring is made of materials selected to match the coefficient of thermal expansion of the substrate to that of the constraining ring. Circuit components including capacitors and resistors are formed on the constraining ring to provide enhanced electrical properties without adding to the size of the device.

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