Abstract: A three-terminal network which electrically senses the time at which the voltage applied to an AC induction motor is removed and concurrently therewith utilizes energy which was previously stored in a capacitor to effect eddy-current braking of the AC induction motor is disclosed.The disclosed system may be utilized to quickly, i.e., within two revolutions, brake a two-terminal shaded-pole induction motor, or a two-terminal unidirectional split-phase motor, or a three-terminal bidirectional split-phase motor.

Abstract: Buffer storage apparatus is disclosed for use with a semiconductor wafer processing system having plurality of processing stations positioned along a conveyor structure and in which allowance must be made for different processing rates at different stations, the buffer storage apparatus including a first buffer storage station positioned between a first and a second processing station for temporarily holding wafers received from the first processing station and then conveying them to the second processing station, and a second buffer station positioned between the second processing station and the third processing station and including means for conveying a wafer received from the second processing station to the third processing station or for temporarily holding it.

Abstract: Apparatus is provided for beveling or rounding the edge of thin, disc-like workpieces, such as silicon wafers integrated circuit masks and the like and includes a rotatable holder for receiving and releasably holding such a workpiece and rotating the workpiece with its edge free of obstruction. A rotating grinding wheel axially parallel to the workpiece and holder and having a V-shaped circumferential groove is urged against the edge of the workpiece by resilient biasing means so that the grinding wheel will be maintained in grinding engagement with the workpiece edge during the rotation of the workpiece.