Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1983-06-29
1986-05-27
Bernstein, Hiram H.
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
156624, C30B 1900
Patent
active
045914087
ABSTRACT:
Polycrystalline and monocrystalline potassium polyphosphide, KP.sub.15, has been grown from the liquid phase at a temperature range of 600.degree.-700.degree. C. Massive crystallization of KP.sub.15 whiskers and platelets is observed. Crystalline KP.sub.15 films have been grown on gallium arsenide (110) and gallium phosphide (111) polished wafers, silicon (110) polished wafers, quartz, on a nickel evaporated 2000 angstrom nickel layer on quartz, and on nickel foil. Microcrystalline KP.sub.15 formed by a condensed phase process is incorporated into a sealed ampule evacuate 10.sup.-4 torr. The temperature is raised to 655.degree. C. and the furnace tilted to bring the melt in contact with the substrates. The temperature is then reduced to 640.degree. C. and the furnace is tilted back to the original position. Large KP.sub.15 whiskers several millimeters in size are grown from the melt and crystalline films of KP.sub.15 are grown topotaxially on gallium arsenide and gallium phosphide. Crystalline platelets of KP.sub.15 3.times.3 mm have been obtained by cleaving the grown film from a gallium phosphide substrate.
REFERENCES:
patent: 3810794 (1974-05-01), Antypas et al.
The Synthesis and Crystal Structure of the Polyphosphides La.sub.6 Ni.sub.6 P.sub.17, Ce.sub.6 Ni.sub.6 P.sub.17, and Pr.sub.6 Ni.sub.6 P.sub.17, Braun et al., Acta. Cryst., 1978, B 34, 2069-2074.
The Crystal Structure of ZnSnP.sub.14 and Its Relationship to Hittorf Phosphorous and Other Polyphosphides, Pachali et al., Acta. Cryst., A31, Suppl. 3, 69 (1976).
KP.sub.15, A New Polyphosphide, von Schnering et al., Angew. Chem. Internat. Edit./vol. 6 (1967)/No. 4.
Baumann John A.
Marek Henry S.
Michel Christian G.
Bernstein Hiram H.
Davis IV F. Eugene
Stauffer Chemical Company
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