Method of filling apertures with crystalline material

Details Method of filling apertures with crystalline material Method of filling apertures with crystalline material

1975-08-29

1977-11-22

Newsome, John H.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

350 96BC, 427 53, 427 55, 427 65, 427376R, B05D 306

Patent

active

040597075

ABSTRACT:
A sheet containing the apertures to be filled is coated with a layer of crystalline material. A localized heat source heats small portions of the layer at a time. The crystalline material in each portion is melted and allowed to flow into the apertures. The localized heat source is then moved to heat a different portion of the crystalline layer. In this fashion the layer of crystalline material is scanned with the localized heat source so that the crystalline material melts, flows into the apertures to be filled and then recrystallizes.

REFERENCES:
patent: 3240105 (1966-03-01), Woodcock et al.
patent: 3562009 (1971-02-01), Cranston et al.
patent: 3773549 (1973-11-01), Elbert et al.
patent: 3837909 (1974-09-01), Menelly
patent: 3911167 (1975-10-01), Linder

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