Patent ID: 8591809

Claim:
Semiconductor manufacturing equipment comprising: a clean room in which process apparatus are disposed to perform semiconductor manufacturing processes; and a substrate transfer container constructed and arranged to retain a plurality of substrates subject to a manufacturing process and to be transported among the process apparatus, wherein the substrate transfer container comprises: a housing including a plurality of substrate slots, each substrate slot for retaining a substrate subject to a manufacturing process; a door constructed and arranged to seal an interior environment of the housing; a first detection unit at the housing to detect an environmental property of the interior environment; and a first wireless transmitter configured to transmit a detection signal received from the detection unit, wherein the wireless transmitter is positioned at an outer wall of the housing and includes a flexible cable positioned along an inner wall, an opening and the outer wall of the housing, electrically connecting the detection unit and the wireless transmitter; the semiconductor equipment further comprising: signal amplifiers positioned at a plurality of locations in the clean room and configured to amplify the detection signal transmitted from the first wireless transmitter and to transmit the amplified signal to a receiver; a stocker housing positioned in the clean room; a plurality of support plates arranged vertically in the stocker housing to temporarily store the substrate transfer container; purge units respectively provided at the support plates to supply a purge gas to the substrate transfer container placed on the support plate; and a gas purge monitoring tool configured to monitor whether the purge units operate normally, wherein the gas purge monitoring tool comprises: a container constructed and arranged to be placed on a vacant one of the support plates; a gas chamber in the container, the gas chamber constructed and arranged to receive an inert purge gas supplied from purge unit and to selectively vent the received inert purge gas; a second detection unit configured to detect an environmental property of an interior environment of the gas chamber; and a second wireless transmitter configured to wirelessly transmit a detection signal received from the second detection unit to the signal amplifiers.