摘要:
The present invention relates to an apparatus and a method for transferring substrates into and from a vacuum chamber in a lithography apparatus. The load lock system comprises: a load lock chamber provided with an opening for allowing passage of a substrate in and out of the load lock chamber, and a transfer apparatus comprising a sub-frame at least partially arranged in the load lock chamber, an arm which is, with a proximal end thereof, connected to the sub-frame, and a substrate receiving unit which is connected to a distal end of the arm. The arm comprises at least three hinging arm parts, wherein a first and a second arm part are hingedly connected to the sub-frame with a proximal end thereof. A third arm part is hingedly connected to the distal ends of the first and second arm parts. The arm parts are arranged to form a four-bar linkage.
摘要:
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.
摘要:
The invention relates to a lithography system, for example for projecting an image or an image pattern on to a target (1) such as a wafer, said target being included in said system by means of a target table (2), clamping means being present for clamping said target on said table. Said clamping means comprises a layer of stationary liquid (3), included at such thickness between target and target table that, provided the material of the liquid (C) and of the respective contacting faces (A, B) of the target (1) and target table (2), a pressure drop (PCap) arises.
摘要:
The invention relates to an assembly (1) for enclosing a target processing machine. The assembly comprises an enclosure (2) and a transfer unit (3). The enclosure comprises a base plate (21) for arranging said target processing machine thereon, side wall panels (22), which are fixed to said base plate, and a top wall panel (23) which is fixed to said side wall panels. In addition, the enclosure comprises an access opening (24) in a side wall of the enclosure. The transfer unit comprising one or more transfer elements (31) for moving the transfer unit with respect to the base plate. The transfer unit further comprises a door panel (32) which is arranged for closing the access opening, wherein the door panel is movably mounted to the transfer unit by means of a flexible coupling (33) which allows a movement of the door panel with respect to the transfer unit at least in a direction towards and/or away from the enclosure.