Patent ID: 6915183
Filing Date: 2005-07-05
Classification: H01L,Y10S

Abstract:
1. A substrate processing apparatus comprising a substrate carrier apparatus rotatable about a vertical axis, movable back and forth, and ascendable and descendable; towers placed along a rotational direction of said substrate carrier apparatus, each of said towers being constituted of a plurality of processing units tiered; and a carrier opening formed in an exterior casing of each of said processing units for allowing said substrate carrier apparatus holding a substrate to be carried into/out of each of said processing units, for acquiring data on a transfer position of said substrate carrier apparatus with respect to a predetermined position on a mounting table in said processing unit in adjusting said substrate processing apparatus, said apparatus comprising: a first optical detection mark provided on an outer surface of said exterior casing and having a predetermined positional coordinate in a lateral direction with respect to said carrier opening; a second optical detection mark provided on the outer surface of said exterior casing and having a predetermined positional coordinate in a vertical direction with respect to said carrier opening; an optical sensor provided on said substrate carrier apparatus for detecting said first or second optical detection mark; and a control unit including a program of rotating said substrate carrier apparatus by a predetermined angle from a position of said substrate carrier apparatus where said optical sensor detects said first optical detection mark, and moving said substrate carrier apparatus in the vertical direction by a predetermined amount of movement from a position of said substrate carrier apparatus where said optical sensor detects said second optical detection mark, to allow said substrate carrier apparatus to face said carrier opening of said processing unit; and a program of allowing said substrate carrier apparatus to enter said processing unit after said substrate carrier apparatus faces said carrier opening and to perform an operation of acquiring data on a precise transfer position when transferring the substrate to the predetermined position on said mounting table.