Adhesive bonding and miscellaneous chemical manufacture – Methods
Patent
1974-09-16
1976-01-06
Drummond, Douglas J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
29580, 29591, 148175, 148187, 156 13, 156 17, 427 85, 427 89, H01L 2120
Patent
active
039309126
ABSTRACT:
The invention relates to the manufacture of arrays of light emitting diodes (L.E.D.'s) from a wafer consisting of an n-type epitaxial layer on an n.sup.+ substrate. The method includes the steps of forming p-type islands by diffusing a p-type dopant into the epitaxial layer of an n on n.sup.+ wafer, establishing contact with all of the p-type islands by means of a first set of conductors, mounting the wafer on a transparent support with the first set of conductors adjacent the support, depositing a second set of conductors on the n.sup.+ substrate and etching both the substrate and the epitaxial layer from between the conductors of the second set, the two sets of conductors being orthogonal and each p-n junction formed by a p-type island and the epitaxial layer being in contact with one and only one conductor from each set.
REFERENCES:
patent: 3559283 (1971-02-01), Kravitz
patent: 3590479 (1971-07-01), Deuries
patent: 3689993 (1972-09-01), Tolar
patent: 3746587 (1973-07-01), Rosvold
patent: 3765970 (1973-10-01), Athanas et al.
patent: 3767494 (1973-10-01), Muraoka et al.
patent: 3805376 (1974-04-01), D'Asaro et al.
patent: 3853650 (1974-12-01), Hartlaub
Drummond Douglas J.
Massie Jerome W.
The Marconi Company Limited
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