Abstract: A method and apparatus for automated testing of a plurality of electrostatic discharge (ESD) devices on a wafer. The wafer has M padsets and N conductive pads on each padset, where m is at least 1, and n is at least 2, and each ESD device is conductively coupled to a unique plurality of pads of a padset of the M padsets. Testing sequences, under program control of a computer system, implement the testing of the ESD devices.

Abstract: A method and apparatus for automated testing of a plurality of electrostatic discharge (ESD) devices on a wafer. The wafer comprises M padsets and N conductive pads on each padset, wherein M is at least 1, wherein N is at least 2, and wherein each ESD device is conductively coupled to a unique plurality of pads of a padset of the M padsets. Testing sequences, under program control of a computer system, implement the testing of the ESD devices.

Abstract: A milling machine having a horizontal slide and a vertical slide. The horizontal slide is mounted for movement between a loading station and a milling area. The vertical slide is mounted on the horizontal slide for vertical movement. A chuck is mounted on the vertical slide and has jaws for gripping a workpiece at the loading station. Milling tools in the milling area mill a workpiece held by the chuck when the horizontal slide is moved to the milling area. The milling tools include a face mill, a semi-finish end mill and a finish end mill which are arranged in a straight line along the path of movement of the chuck when the horizontal slide is moved from the loading station to the milling area. All of the milling tools are mounted in a receptacle which is capable of positioning the milling tools offset from the center line of the workpiece.

Abstract: A tool turret has a brake to retain the turret in an an index position. The brake has stationary and rotatable brake members, each formed with a cone-shaped braking surface and a radial or face braking surface. A tooling plate carries a plurality of cutting tools and is mounted on the rotatable brake member. When the brake members are moved toward one another, the cone-shaped braking surfaces engage and the face braking surfaces engage in an indexed position in which one of the cutting tools is brought into a position for engaging a workpiece. When the brake members are disengaged, a motor turns the rotatable brake member and the tooling plate to another indexed position. The cone-shaped braking surfaces are mounted on flexibly resilient braking elements of the brake members to enable them to flex upon initial engagement of the cone-shaped braking surfaces, so that further movement of the brake members towards one another into full engagement with the face braking surfaces is permitted.

Abstract: An end mill for simultaneously milling two intersecting perpendicular surfaces of a part. The end mill is subjected to side cutting loads causing side deflection of the end mill, with the result that both the side-milled surface and the end-milled surface are not cut true to the part. To compensate for end mill deflection, a cam arrangement is provided to adjust the position of the end mill.

Abstract: A handle assembly includes a main body portion and a gripping portion. The gripping portion formed on a sleeve which is adapted to be removably frictionally returned on the main body portion of the handle assembly. The gripping portion is molded to include the contour of a hand of a specific user and can readily be transferred among various tools which are adapted to receive the sleeve.

Abstract: Apparatus for precision positioning of guide bushings for roughing tools and for finishing tools so that preformed holes in workpieces may be initially subjected to a roughing operation by roughing tools and subsequently to a finishing operation by finishing tools. The guide bushings are mounted on the ends of carrier arms. The carrier arms encircle a workpiece holder. Each carrier arm is mounted for swinging movement on a pivot axis spaced radially from the workpiece holder. The carrier arms are swingable from a position in which the bushings on one end of the arms are aligned with holes in a workpiece mounted on the workpiece holder, to another position in which the guide bushings on the other end of the arms are aligned with holes in the workpiece. Power is provided for simultaneously swinging all of the carrier arms.

Abstract: Apparatus for use in cutting a workpiece on different centers. The workpiece is mounted in a chuck on a spindle top. The spindle top is mounted on the upper end of a rotatable, vertical spindle shaft adjacent to a cutting tool in different positions spaced apart laterally relative to the spindle shaft axis. When the spindle shaft is rotated with the spindle top in one position, the tool will cut the workpiece on one center. In another position of the spindle top, the tool will cut on a different center.

Abstract: A novel method for the production of (S)3-hydroxy-3-methylglutaryl coenzyme A provided for the enzymatic conversion of 3-methylcrotonyl coenzyme A to the desired product. The enzyme is obtained from Pseudomonas citronellolis by ammonium sulfate precipitation of a cellular lysate. The precipitate is then redissolved in a suitable buffer and yields of over 60% have been obtained by direct reaction in the buffer.

Abstract: A boring machine having a work-holding spindle, a turret, and means for mounting a plurality of tools on the turret. A work-handling device is mounted on the turret having means to grip and release a workpiece. The work handling device is capable of loading and unloading the spindle.

Abstract: An adaptive control system for a bulk material dryer measures the thermal demand of bulk material to be dried in a dryer and adjusts the thermal output of the dryer to match the measured demand. The system contemplates that the dryer will require a response period to fully meet a change in demand and coordinates the introduction of material into the dryer with that response time. The system is automatically responsive to changes in both the moisture level and mass flow rate of the bulk material to be dried, adjusting the thermal output of the dryer to changes in each of these variables. The system preferably includes a feedback sensor used to make final adjustments in the dryer output.