| 摘要 |
A connector for electronic subassemblies is initially formed as a small sphere having an outer coating of solder (2), for example 1.0mm in diameter, and an inner core (4) of copper, for example 0.5mm in diameter. To effect a connection, the connector is positioned between an electrical bonding pad (16) of an integrated circuit chip (12) and an interconnect pattern (14) on a ceramic substrate (10), and is then heated so that the solder (2) flows, making mechanical and electrical contact to the pad and interconnect pattern on the chip and substrate. The copper (4) core does not melt and maintains a predetermined space, between the chip (12) and substrate (10). |
