Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1995-06-06
1997-03-25
Ryan, Patrick
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428901, 257758, 257766, B32B 0900
Patent
active
056142919
ABSTRACT:
A semiconductor device, including a nickel layer formed on a semiconductor substrate and a solder layer formed on the nickel layer, and a method of manufacturing such a device are disclosed. The percent ratio of an X-ray diffraction peak intensity of the (200) plane of the nickel layer to that of the (111) plane of the nickel layer is not less than 10%. The nickel layer is sputtered in a condition which a pressure of an argon discharge gas is at least 15 mTorr. The solder layer includes at least tin and lead, and the amount of tin is not more than 30% by weight. The adhesive strength of the resultant semiconductor device is strong.
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Inaguma Yoshiaki
Kondo Ichiharu
Sakamoto Yoshitsugu
Jewik P.
Nippondenso Co. Ltd.
Ryan Patrick
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