Process apparatus with on-the-fly workpiece centering
First Claim
1. A substrate processing apparatus comprising:
- a transport apparatus adapted for transporting a substrate between processing stations of the processing apparatus;
at least one sensor connected to the transport apparatus and capable of sensing the substrate transported by the transport apparatus, the at least one sensor being arranged for sending at least one signal in response to sensing the substrate; and
a controller communicably connected to the sensor and arranged to determine alignment of the substrate in at least two directions, disposed in a plane of the substrate and angled relative to each other, relative to a predetermined location from the at least one signal identifying no more than two points on the substrate and independent of radial variances between substrates.
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Accused Products
Abstract
A substrate processing apparatus having a transport apparatus, at least one sensor connected to the transport apparatus and a controller. The transport apparatus is adapted for transporting the substrate between processing stations of the processing apparatus. The sensor is capable of sensing the substrate transported by the transporting apparatus. The sensor is arranged for sending at least one signal in response to sensing the substrate. The controller is communicably connected to the sensor and arranged to determine alignment of the substrate in at least two directions, angled relative to each other, relative to a predetermined location. The controller is capable of determining alignment from the at least one signal identifying no more than two points on the substrate and independent of radial variances between substrates.
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Citations
10 Claims
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1. A substrate processing apparatus comprising:
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a transport apparatus adapted for transporting a substrate between processing stations of the processing apparatus; at least one sensor connected to the transport apparatus and capable of sensing the substrate transported by the transport apparatus, the at least one sensor being arranged for sending at least one signal in response to sensing the substrate; and a controller communicably connected to the sensor and arranged to determine alignment of the substrate in at least two directions, disposed in a plane of the substrate and angled relative to each other, relative to a predetermined location from the at least one signal identifying no more than two points on the substrate and independent of radial variances between substrates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification