Patent ID: 7470098
Filing Date: 2008-12-30
Classification: H01L,Y10S

Abstract:
1. A detecting apparatus for detecting housing states of substrates housed at multiple tiers vertically aligned in a housing body, said detecting apparatus being set on a transfer-in/out port side of the housing body for housing the substrates, comprising: an optical sensor including a light emitting part for horizontally applying a linear light and a light receiving part for receiving the light, and capable of optically detecting the housing states of the substrates; a pair of supporting arms supporting said light emitting part and said light receiving part of said optical sensor, respectively; a supporting shaft supporting said supporting arms and extended in a horizontal direction; a raising and lowering mechanism for raising and lowering said supporting shaft; and a rotation mechanism for rotating said supporting shaft to allow said optical sensor to enter said housing body and said supporting arms to fall down until the substrate is located between said light emitting part and said light receiving part.