In the article experiment prove:combination with feine tin-solder-bumps and underbump-metalliza with cobalt be able to longthen life of leadless flip-chip-solderng.
2
纯锡焊料凸块和含钴底部凸块金属焊层结合可延长无铅焊接倒装片的寿命。
The cost of wire bonding chips and solder bumped flip chips on boards or on organic substrates is stated.
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