Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1978-12-04
1981-06-09
Dean, R.
Metal working
Method of mechanical manufacture
Assembling or joining
29569L, 29585, 29586, 29590, 357 66, 357 68, 357 81, H01L 21479
Patent
active
042715849
ABSTRACT:
A method of fabricating light emitting diodes to prevent degradation caused y thermally induced stress. A voltage is applied across the chip to cause it to bend to a prestressed condition while it is being soldered to the header. The biasing voltage applied is continued until after the heat is removed and the solder cooled leaving the diode in the prestressed condition.
REFERENCES:
patent: 3172188 (1965-03-01), Wood
patent: 3808674 (1974-05-01), Francombe
patent: 3843401 (1974-10-01), Carroll
patent: 3953920 (1976-05-01), Endo
patent: 4016644 (1977-04-01), Kurtz
Dean R.
Johnston Ervin F.
Phillips Thomas M.
Saba W. G.
Sciascia Richard S.
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