Chemical ablation of single crystal alkaline earth metal halide

Details Chemical ablation of single crystal alkaline earth metal halide Chemical ablation of single crystal alkaline earth metal halide

1977-12-12

1979-05-22

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156659, 252 792, H01L 21306

Patent

active

041558030

ABSTRACT:
Ablation of single crystal alkaline earth metal halides as barium fluoride is accomplished by contacting them with monovalent acid in fluid medium. Smooth etched surfaces are obtained by hydrogen halide as hydrochloric acid in aqueous solution acting on single crystal barium fluoride.

REFERENCES:
patent: 3765969 (1973-10-01), Kragness et al.
patent: 3935302 (1976-01-01), Pastor et al.
Indian Journal of Pure and Applied Physics, vol. 11, No. 12, Dec. 1973, pp. 939 and 940, Selective Etching Parameters for CaF.sub.2 Single Crystal.
Journal of Applied Physics, vol. 47, No. 2, Feb. 1976, Preparation of Polished Substrates of Baf.sub.2 by Bis et al., pp. 736-740.
Optical Engineering, vol. 14, No. 4, Jul.-Aug. 1975, Recent Infrared Detector Developments for Future Remote Sensor Applications, pp. 351-356.

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