Patent ID: 6454514
Filing Date: 2002-09-24
Classification: B24B,H01L,Y10S

Abstract:
A workpiece support for receiving a series of workpieces, each workpiece having a front face, a back face, and an outer perimeter, the workpiece support comprising:a set of grooved members, each grooved member including a series of grooves interspersed between a series of teeth, each groove including a bearing wall and a wedging wall for receiving a workpiece therebetween; wherein in at least a first grooved member of the set of grooved members, the bearing walls are oriented so as to face toward and bear against the front faces of the received workpieces, and the wedging walls are angled so as to face toward the back faces of the received workpieces; wherein at least a second grooved member of the set of grooved members, the bearing walls are oriented so as to face toward and bear against the back faces of the received workpieces, and the wedging walls are angled so as to face toward the front faces of the received workpieces received workpieces; and wherein the teeth of at least one of the grooved members include an aligned recess to accommodate a workpiece sensor.