Fabrication of circuit packages using solid phase solder bonding

摘要

A method of forming circuit packages including bonding an electronic component, (10) such as a chip carrier, to a supporting substrate (22). Solid solder preforms (13) are applied to contact members (12) on the component or substrate or both. The preforms are bonded to the contact members by heating to a temperature below the melting point of the solder while applying force to the preforms. The preforms are therefore bonded without melting, and fluxing and cleaning operations may be eliminated. The component can then be bonded to the substrate by the same solid phase technique.