US PATENT SUBCLASS 117 / 2 PROCESSES OF GROWTH WITH A SUBSEQUENT STEP ACTING ON THE CRYSTAL TO ADJUST THE IMPURITY AMOUNT (E.G., DIFFUSING, DOPING, GETTERING, IMPLANTING)
Current as of: June, 1999
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PROCESSES OF GROWTH WITH A SUBSEQUENT STEP ACTING ON THECRYSTAL TO ADJUST THE IMPURITY AMOUNT (E.G., DIFFUSING,DOPING, GETTERING, IMPLANTING):
(under the class definition) Subject matter in which, subsequent to a claimed single-crystal* growing step, the
crystal is treated to remove or add an impurity; e.g., by a diffusion, doping*, gettering*, or implanting process.
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3, for like processes in which the impurity is merely redistributed rather than adjusted.
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427, Coating Processes, for the per se step, other than as specifically provided for elsewhere (see the reference to Class 438 below).
438, Semiconductor Device Manufacturing: Process, for such processes in which a single crystal of semiconductor material is acted upon and for the per se operation of gettering*, doping*, implanting*, or diffusion acting on the semiconductor material.