Abstract:
A method of processing substrates in a lithography system unit of a lithography system, the lithography system unit comprising at least two substrate preparation units (360a-360d), a load lock unit (310) comprising at least first and second substrate positions, and a substrate handling robot for transferring substrates between the substrate preparation units and the load lock unit. The method comprises providing a sequence of substrates to be exposed to the robot, including an Nth substrate, an N-1th substrate immediately preceding the Nth substrate, and an N+1th substrate immediately following the Nth substrate; transferring the Nth substrate by means of the robot to a first one of the substrate preparation units; clamping the Nth substrate on a first substrate support structure in the first substrate preparation unit, the Nth substrate and first substrate support structure together forming a clamped Nth substrate; transferring the clamped Nth substrate by means of the robot from the first substrate preparation unit to an unoccupied one of the first and second positions in the load lock unit for exposure in the lithography system unit; and exposing the clamped Nth substrate in the lithography system unit.
Abstract:
A clustered substrate processing system comprising a plurality of lithography elements, each lithography element arranged for independent exposure of substrates according to pattern data. Each lithography element comprises a plurality of lithography subsystems, a control network arranged for communication of control information between the lithography subsystems and at least one element control unit, the element control unit arranged to transmit commands to the lithography subsystems and the lithography subsystems arranged to transmit responses to the element control unit, and a data network arranged for communication of data logging information from the lithography subsystems to at least one data network hub, the lithography subsystems arranged to transmit data logging information to the data network hub and the data hub arranged for receiving and storing the data logging information. The system further comprises a cluster front-end for interface to an operator or host system, the cluster front-end arranged for transmitting control information to the at least one machine control unit to control operation of the lithography subsystems for exposure of one or more wafers, and the front-end further arranged for receiving at least a portion of the data logging information received by the data network hub.
Abstract:
A clustered substrate processing system comprising a plurality of lithography elements, each lithography element arranged for independent exposure of substrates according to pattern data. Each lithography element comprises a plurality of lithography subsystems, a control network arranged for communication of control information between the lithography subsystems and at least one element control unit, the element control unit arranged to transmit commands to the lithography subsystems and the lithography subsystems arranged to transmit responses to the element control unit, and a data network arranged for communication of data logging information from the lithography subsystems to at least one data network hub, the lithography subsystems arranged to transmit data logging information to the data network hub and the data hub arranged for receiving and storing the data logging information. The system further comprises a cluster front-end for interface to an operator or host system, the cluster front-end arranged for transmitting control information to the at least one machine control unit to control operation of the lithography subsystems for exposure of one or more wafers, and the front-end further arranged for receiving at least a portion of the data logging information received by the data network hub.
Abstract:
A clustered substrate processing system comprising one or more lithography elements, each lithography element arranged for independent exposure of substrates according to pattern data. Each lithography element comprises a plurality of lithography subsystems, a control network arranged for communication of control information between the lithography subsystems and at least one element control unit, the element control unit arranged to transmit commands to the lithography subsystems and the lithography subsystems arranged to transmit responses to the element control unit. Each lithography element also comprises a cluster front-end for interface to an operator or host system, the front-end arranged for issuing control information to the at least one element control unit to control operation of the one or more lithography subsystems for exposure of one or more wafers. The front-end is arranged for issuing a process program to the element control unit, the process program comprising a set of predefined commands and associated parameters, each command corresponding to a predefined action or sequence of actions to be performed by one or more of the lithography subsystems, and the parameters further defining how the action or sequence of actions are to be performed.
Abstract:
A clustered substrate processing system comprising one or more lithography elements, each lithography element arranged for independent exposure of substrates according to pattern data. Each lithography element comprises a plurality of lithography subsystems, a control network arranged for communication of control information between the lithography subsystems and at least one element control unit, the element control unit arranged to transmit commands to the lithography subsystems and the lithography subsystems arranged to transmit responses to the element control unit. Each lithography element also comprises a cluster front-end for interface to an operator or host system, the front-end arranged for issuing control information to the at least one element control unit to control operation of the one or more lithography subsystems for exposure of one or more wafers. The front-end is arranged for issuing a process program to the element control unit, the process program comprising a set of predefined commands and associated parameters, each command corresponding to a predefined action or sequence of actions to be performed by one or more of the lithography subsystems, and the parameters further defining how the action or sequence of actions are to be performed.
Abstract:
The invention relates to a lithography system (1) for patterning a target (30), said system comprising a feedback control system (90) comprising an actuator (40) for displacing the target, a measurement system (50) for measuring a position of said target, and a control unit (60) adapted for controlling the actuator based on the position measured by the measurement system, said feedback control system having a first latency {λι) being a maximum latency between measuring and controlling the actuator based on said measuring, a storage system (70) for storing the measured positions, comprising a receive buffer (71) and a storage unit (72) with a second latency (λ2) being an average latency between receiving measured positions in the receive buffer and storing said measured positions in the storage unit, wherein the first latency is at least an order of magnitude smaller than the second latency, the feedback control system comprising a unidirectional connection (82) for transmitting said measured positions to the storage system.
Abstract:
An apparatus (401) for transferring substrates (405) within a lithography system (300), the lithography system comprising a substrate preparation unit (360a-d) for clamping a substrate onto a substrate support structure to form a clamped substrate, and an interface with a substrate supply system (315) for receiving unclamped substrates. The apparatus comprises a body (680) provided with a first set of fingers (684a, b) for carrying an undamped substrate and a second set of fingers (685a, b) for carrying a substrate support structure (403), and the first set of fingers is located below the second set of fingers, and fingers of the first set of fingers have a different shape than the fingers of the second set of fingers.