摘要:
A vacuum network control system includes a plurality of nodes configured for control over operational processes of the system. The plural nodes are configured, in a network ring or other topology, as a selectable master node for controlling the operational processes. Control can be distributed among, and passed between, each of the nodes. Each node on the network monitors adjacent network connectors to detect a fault in the network. In response to a detected fault, a disconnect is mapped to the fault, and the network topology is reconfigured for continued communication among the nodes and with external devices.
摘要:
A semiconductor workpiece processing system compπsing at least one processing tool, a container(151 ), a first transport section (12) and a second transport section ( 14) The first transporting section having a transport vehicle (200) for moving a cassette while moving along a first track (16) The second transport section is not vehicle based and has a second track (18) The first and second tracks are disposed proximate to each other to allow a container to be moved therebetween in a single operation
摘要:
Cryopump components are improved using thin layer heating elements for temperature control or to serve as heaters. These heating elements may be located and prevent pooling during regeneration. The temperature control may also be achieved through the use of ceramic heating elements. The ceramic heating elements may also include a second function of structural support within the cryopump. Temperature control may further be achieved via the radiation shield, where the radiation shield includes a clad sheeting or coating.
摘要:
An automated material handling system comprising: a fixed shelf (732) configured to hold a cassette pod (710,810); and an overhead hoist transport subsystem (704,804) including an overhead transport vehicle (705,805) mounted with an overhead hoist (831), the overhead hoist (831) including a translating stage (833) capable of laterally moving and a hoist gripper (731,835) coupled to the translating stage (833) and capable of moving laterally with a lateral movement of the translating stage (833) and moving vertically by the hoist gripper (731,835) itself, the hoist gripper (731,835) being configured to grip the cassette pod(710,810), the overhead transport vehicle(705,805) being configured to move in a suspended manner along a suspended track(708,808) defining a predetermined route running adjacent to the fixed shelf(732) under a state in which the cassette pod(710,810) is being gripped by the hoist gripper (731,835), and being mounted with the overhead hoist (831) at a lower position than the suspended track(708,808).