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US Patent Application 20090143876 - Method for limiting expansion of earthquake damage and system for limiting expansion of earthquake damage for use in semiconductor manufacturing apparatus

Application 20090143876 Filed on November 21, 2008. Published on June 4, 2009

Inventors

US Classes

700/79, Having protection or reliability feature700/108Performance monitoring

Attorney, Agent or Firm

Foreign Documents

  • 2007-309720 JP 11/30/2007
  • 2008-270753 JP 10/21/2008

International Classes

G05B 9/02
G06F 17/00


Abstract text


To predict occurrence of an earthquake so as to minimize damage by preventing an object to be processed from flying out of an opened container. A semiconductor manufacturing apparatus 1 includes: a transfer area Sa including a transfer mechanism 13 for a container 3; a detection mechanism 32 configured to detach a lid 3a from the container 3 on a loading and unloading part 7 and to detect a position of an object to be processed w; a receiving and sending mechanism 33 configured to receive the container 3 from the transfer mechanism 13 and to send the container 3 to the transfer mechanism 13; an elevating mechanism 18 disposed in a working area Sb below a heating furnace 5, the elevating mechanism 18 being configured to support a holder 4 holding a plurality of objects to be processed on a lid member 17 and to load and unload the holder 4 into and out of the heating furnace 5; a door mechanism 15 configured to open and close an opening 34 of a partition wall 6 separating the transfer area Sa and the working area Sb together with a lid 3a of the container 3, and an aligning mechanism 16 of an object to be processed. An emergency earthquake notice, which is delivered based on a preliminary tremor through a communication line, is received by a reception part 28, or a preliminary tremor is directly detected by a preliminary-tremor detection part 60. A control part 29 carries out a first step in which an operation of a semiconductor manufacturing apparatus 1 is stopped based on the emergency earthquake notice received by the reception part 28 or the preliminary tremor detected by the preliminary-tremor detection part 60, and a second step in which, when the door mechanism is being opened, the door mechanism 15 is closed.

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