Patent ID: 8591809
Filing Date: 2013-11-26
Classification: H01L

Abstract:
1. 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: 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: