US PATENT SUBCLASS 117 / 23
.~.~ Shape defined by a solid member other than seed or product (e.g., edge-defined film-fed growth, Stepanov method)

Current as of: June, 1999
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117 /   HD   SINGLE-CRYSTAL, ORIENTED-CRYSTAL, AND EPITAXY GROWTH PROCESSES; NON-COATING APPARATUS THEREFOR

11  DF  PROCESSES OF GROWTH FROM LIQUID OR SUPERCRITICAL STATE {7}
13  DF  .~ Having pulling during growth (e.g., Czochralski method, zone drawing) {9}
23.~.~ Shape defined by a solid member other than seed or product (e.g., edge-defined film-fed growth, Stepanov method) {3}
24  DF  .~.~.~> Embedded in product (e.g., string-stabilized web)
25  DF  .~.~.~> Defines a product with a hollow structure (e.g., tube)
26  DF  .~.~.~> Defines a flat product {1}

DEFINITION

Classification: 117/23

Shape defined by a solid member other than seed or product (e.g., edge-defined film-fed growth, Stepanov method):

(under subclass 13) Subject matter wherein a solid member (i.e., a physical or mechanical shaper or die) is provided sufficiently close to the precursor*-product interface to affect, and at least partially define, the shape of the crystal as it is pulled from the liquid and passes against the shaping means.

(1) Note. The solid member may be pulled with and become attached to or embedded in the crystal; e.g., string-stabilized web pulling.

SEE OR SEARCH THIS CLASS, SUBCLASS:

54+, for processes of liquid epitaxy* crystallization even though the epitaxy* substrate may be pulled relative to the precursor*.