Abstract: A cleaning subsystem removes unwanted material, such as glaze, from saw blades used in a semiconductor singulation process. A cleaning module moves radially towards the saw blade and vertically with respect to the plane of the saw blade in order to enable abrasive cleaning blocks of the cleaning module to selectively remove material from either the upper and lower surfaces of the saw blade or the outer edge of the saw blade. The cleaning assembly can remove material from the saw blade at a predetermined time or position during the singulation process or upon detection of load imbalance during the rotation of the saw blade.

Abstract: Disclosed is a method for grinding a spring with high quality and high efficiency, comprising the steps as follows: firstly, at least one of an upper grinding wheel (1) and a lower grinding wheel (2) is configured to comprise an inner grinding wheel (21) and an outer grinding wheel (24), wherein the inner grinding wheel (21) is fitted in the outer grinding wheel (24); the inner grinding wheel (21) or the outer grinding wheel (24) is driven by a transmission mechanism, the inner grinding wheel (21) and the outer grinding wheel (24) rotating in opposite directions; after a complete spring is fed to a space between the upper grinding wheel (1) and the lower grinding wheel (2), the complete spring is moved back and forth in the plane of the grinding wheels; and then the upper grinding wheel (1) is moved downwardly such that two end faces of the spring are ground by the grinding wheels, and when the height of the ground spring meets the requirement, the upper grinding wheel (1) is stopped moving downwardly and is

Abstract: In one embodiment, a method for cleaning a surface of a polishing pad includes conditioning the polishing pad surface and rotating the conditioned polishing pad surface. The method also includes spraying the polishing pad surface to lift debris from the conditioned polishing pad surface. The method further includes vacuuming the debris from the polishing pad surface downstream from where the condition occurs, wherein downstream is defined by a rotational direction of the polishing pad. In another embodiment, a processing station including a rotatable platen, a substrate carrier head, a polishing fluid delivery system, a conditioner, a spray nozzle, and a vacuum system is provided. The conditioner is disposed between the substrate carrier head and the spray nozzle. The vacuum system is configured to vacuum the polishing pad surface. The vacuum system is downstream from the conditioner, defined by a rotation of the platen.

Abstract: A multiple-sample-holder polishing setup for cross-section sample preparation and a method of making a device using the same are presented. The multiple-sample-holder polishing setup includes a frame. The frame has a hollow center, one or more long and short rods and a recess for accommodating a polishing head. The setup includes one or more sample holders. The sample holder is to be attached to the one or more long and short rods of the frame. A paddle is affixed to each sample holder. A sample is attached to the paddle. The sample is coated with a thin epoxy layer prior to polishing thereby allowing for easy inspection for site of interests as well as quick material removal.

Abstract: Semiconductor processing and equipment are disclosed. The semiconductor equipment and processing provide semiconductor wafers with reduced defects.

Abstract: Provided is a wire saw intended for cutting concrete, stone or the like, more particularly, a diamond wire saw which is configured such that each front of beads is formed to be curved so that the beads can appropriately respond to resistance transmitted from an object to be cut without being in direct contact with the resistance, cutting diamond layers are electrodeposited and attached to the curved portions, and a large quantity of cutting chips are accommodate and are then discharged to the outside so that the number of installed beads can be easily adjusted.

Abstract: A device for replacing sanding elements of a polishing device includes a first support, a second support, a feeder assembly, a suction assembly, a first pushing assembly, a second pushing assembly, and a clamping assembly. The feeder assembly includes a receiving member configured to receive the sanding elements, and a supporting member positioned below the receiving member. The suction assembly includes a suction member configured to draw a sanding element from the receiving member, and a rotary actuator configured to rotate the suction member. The first pushing assembly is configured to receive the sanding element from the suction member and transport the sanding element to the polishing device. The clamping assembly is configured to attach an unused sanding element to, and detach a used sanding element from, a manipulator of the polishing device, and the second pushing assembly is configured to separate the sanding element from the clamping assembly.

Abstract: A chemical mechanical polishing apparatus includes a platen, a polishing head, a magnetizable polishing pad, and an electromagnetic component. The magnetizable polishing pad is disposed between the polishing head and the platen. The electromagnetic component is configured for fastening the magnetizable polishing pad on the platen.

Abstract: A power tool includes an output shaft defining a rotational axis and a housing from which the output shaft protrudes. The power tool further includes a flange at least partially surrounding the output shaft, a circumferential groove defined between the housing and the flange, and a radially inward-extending slot in the flange. The power tool also includes a rotatable guard having a first radially inward-extending projection and a plurality of apertures positioned radially about the rotational axis. The first radially inward-extending projection is receivable through the radially inward-extending slot in the flange and positioned within the groove. Furthermore, the power tool includes a lever having a detent member, and a biasing member for biasing the lever toward the rotatable guard. The detent member is receivable in one of the plurality of apertures to rotationally lock the rotatable guard relative to the housing.

Abstract: A hand power tool, in particular an angle grinder, includes a drive unit and an electronic unit. The hand power tool further includes an after-run cooling unit configured, at least partially, to cool the drive unit and/or the electronic unit substantially after an operating state of at least the drive unit.

Abstract: A sapphire substrate includes a generally planar surface having a crystallographic orientation selected from the group consisting of a-plane, r-plane, m-plane, and c-plane orientations, and having a nTTV of not greater than about 0.037 ?m/cm2, wherein nTTV is total thickness variation normalized for surface area of the generally planar surface, the substrate having a diameter not less than about 9.0 cm.

Abstract: A remotely controlled pile cutter for insertion to a desired position within a tubular piling comprises an insertion cable attached to a lifting sub, radially extendable centralizer arms, an extendable rotatable cutter, a camera, and monitors and sensors in communication with a control panel and computer processor where information and control signals are received and generated. The radially extending centralizer arms hold the pile cutter in place at the internal piling wall. Radial extension of the rotatable cutter positions a fluid nozzle to direct high pressure cutting fluid against the internal piling wall as the cutter is rotated around the internal piling wall to sever the piling. The location and position of the rotatable cutter, the fluid steam, and the physical properties of the cutter environment may be continually and remotely monitored at the control panel.

Abstract: A digital panel of a belt sander includes a control module. The control module is electrically connected with a conveyer motor and an abrasive belt wheel motor of the belt sander. The control module is connected with a detection module. The control module is further connected with a digital display module and an operation module. Thereby, the operation module controls the conveyer motor and the abrasive belt wheel motor of the belt sander, and detects the running state of the conveyer motor and the abrasive belt wheel motor through the detection module, and displays the running data of the conveyer motor and the abrasive belt wheel motor through the digital display module for the belt sander to be digitalized.

Abstract: A processing apparatus includes two feed drums, each having an outer periphery formed with a spirally extending threaded guide surface and adapted to be driven to rotate, disposed so as to extend parallel to each other, and the feed drums are used to pass a roller through between the feed drums by the rotation thereof while the roller is caused to rollingly contact the mutually opposed threaded guide surface, and also includes a grinding stone for processing a crowned portion of the roller passing thorough between the feed drums. The threaded guide surface of the feed drums is divided into two axially juxtaposed divided threaded surface areas so that an outer peripheral surface of the roller can be supported at two anteroposterior locations.

Abstract: An electric sharpener having a pair of abrasive wheel assemblies including energy absorbing hubs mounted a powered drive shaft and further integral flexible radially extending arms affixed to respective outer abrasive rings. A pair of disk abrasives assemblies are also affixed to the powered rotatable shaft and include a pair of flexible metal disks operatively connected to a hub attached to the rotatable shaft.

Abstract: A planarization device and a planarization method using the same are provided. The planarization device comprises a platen, a grinding pad, an operation arm, a chuck and a shielding pad. The grinding pad is disposed on the platen. The operation arm has a lower surface. The chuck rotatably is disposed on the operation arm. The shielding pad is detachably disposed on the lower surface of the operation arm.

Abstract: A lapping tool for lapping sealing surfaces of a fitting used in a gas turbine. The tool includes a shaft having first and second ends and a longitudinal axis. A removable handle is attached to the first end and is oriented in a direction transverse to the axis. The tool also includes a removable lapping insert having an outwardly extending attachment portion that is attached to the second end of the shaft. The lapping insert includes a lapping surface which corresponds to the shape of a sealing surface of the fitting. In one embodiment, the lapping insert includes a cavity for receiving a cone portion of a fitting. Alternatively, the lapping insert includes a projection for insertion into a receptacle portion of a fitting.

Abstract: A carrier device (10) is for handling a lens (12) which is received therein and which has a lateral edge (21), in particular for handling an eyeglass lens (12) in a machining or finishing process. The carrier device (10) comprises a main body (14) and has a connecting member (24) for releasably connecting the main body (14) to the received lens (12). The connecting member (24) forms, with the main body (14), a protective cover (15) surrounding the lateral edge (21) of the received lens (12) and a surface (30) of the received lens (12) directed toward the main body (14). The connecting member (24) is releasably connected to the main body (14).

Abstract: A pressure-adjusting lapping element is included as a structural component of a carrier assembly in a lapping head. The lapping element includes actuator nodes that permit fine tuning of a lapping force applied through the lapping element to a work piece. An actuator assembly is directly attached to the lapping element and manipulates the individual actuator nodes. The lapping element further includes whippletree structure to permit a desired degree of flexibility in the lapping element to respond to force inputs at the actuator nodes.

Abstract: A roof-bolt drill bit may have a forward end, a rearward end, and a rotational axis extending between the forward end and the rearward end. A cutting element for the roof-bolt drill bit may include a cutting face and a peripheral surface extending around an outer periphery of the cutting face. The cutting element may include at least one chamfer region and a peripherally extending chamfer extending from the at least one chamfer region along the outer periphery of the cutting element, a width of the at least one chamfer region being greater than a width of the peripherally extending chamfer.