Abstract: A fuse repair circuit and an operating method thereof provide a voltage source and a control signal to a switch, and an end of the switch is connected to a first end of a fuse, and a second end of the fuse is connected to a ground voltage, and the control signal controls whether or not to electrically connect the switch to blow the fuse, and signals outputted from the first and second ends of the fuse are detected to confirm whether or not the fuse is blown.

Abstract: A one-time programmable memory includes a digital interface, a fuse control circuit, a fuse data register, and a programmable fuse array. The digital interface is provided for receiving a fuse data sent from a client, and the fuse control circuit outputs a programmable signal according to the fuse data. The fuse data register is provided for receiving and buffering the fuse data, and the programmable fuse array includes a plurality of programmable data fuses, and the programmable fuse array is provided or receiving and blowing the programmable data fuse according to the programmable signal and fuse data.

Abstract: Embodiments of the present invention pertain to a evaluating the quality of a lapping plate. In one embodiment, an information receiver receives information while the lapping plate is being used to lap a slider. The information indicates the quality of a lapping plate. A quality determiner that evaluates the quality of the lapping plate based on the information while the lapping plate is being used to lap the slider.

Abstract: Embodiments of the present invention pertain to a evaluating the quality of a lapping plate. In one embodiment, information that indicates the quality of a lapping plate is received while the lapping plate is being used to lap a slider, and the information is used to evaluate the quality of the lapping plate while the lapping plate is being used to lap the slider.

Abstract: A station for performing a lapping method to achieve tight dimension controls for both read and write elements of magnetic recording heads is disclosed. A recording head having a read head stripe height and a write head throat height is lapped using a plurality of lapping forces. At least one of the plurality of lapping forces includes a torque force. A lapping wedge angle is controlled using at least one torque force, which controls the offset between the recording head read head stripe height and the write head throat height.

Abstract: Embodiments of the present invention include a method for measuring an angle between a first surface and a second surface of an object. The method includes rotating an object around a center axis of the object and shining a light source perpendicular to the center axis of the object. The method further includes measuring an intensity of a reflected light with respect to time and determining an angle between two or more surfaces of the object based on the intensity of the reflected light with respect to time.

Abstract: The fire-protection material for constructions made of concrete and prestressed concrete, especially for tunnels, in the form of prefabricated plates or sprayed-on and cured coatings is prepared from hydraulically curing compositions containing aluminous cement, optionally in admixture with Portland cement, fillers and, if desired, fibers, curing accelerators, curing delayers, plasticizing agents and foaming agents, wherein the cured material contains less than 5% by weight of ettringite and wherein the composition contains from 50 to 200 weight parts of aluminous cement and from 10 to 250 weight parts of xonotlite in the uncured composition.

Abstract: Systems and methods for the manufacture of a magnetic head. A first embodiment provides an apparatus for the manufacture of a magnetic head comprising a feedback control loop to terminate lapping of the magnetic head responsive to achieving a target signal to noise ratio for the magnetic head.

Abstract: A drive circuit for activating a switch in a switching converter, which has output terminals (K3, K4) for providing an output voltage (Vout), and in which a feedback signal (FB) that varies with the output voltage (Vout) is available.

Abstract: A magnetic recording head with reduced thermally induced protrusion. In one embodiment, a thermal expansion constraining layer comprising silicon dioxide for instance overlays a magnetic recording head. The thermal expansion constraining layer has a very low coefficient of thermal expansion. A sealant layer comprising aluminum oxide overlays the thermal expansion constraining layer. The thermal expansion constraining layer prevents deleterious deformation of underlying head structures that can degrade performance of a storage system. The sealant layer protects the thermal expansion constraining layer from propagation of surface defects therein by protection from shock, including shock during fabrication, as well as moisture, increasing manufacturing yield and reliability.

Abstract: The lapping of a slider is controlled based on an amplitude of a readback signal which is produced from an externally applied magnetic field. A lapping plate is used to lap a slider which includes at least one magnetic head having a read sensor. During the lapping, a coil produces a magnetic field around the slider and processing circuitry monitors both a readback signal amplitude and a resistance of the read sensor. The lapping of the slider is terminated based on the monitoring both the readback signal amplitude and the resistance. Preferably, the lapping of the slider is terminated when the resistance is within a predetermined resistance range and the readback signal amplitude is above a predetermined minimum amplitude threshold or reaches its peak value. Asymmetry can also be measured in the described system, where the lapping process is terminated based on asymmetry as well as resistance and amplitude measurements.

Abstract: A slider is described with a resistive electro-lapping guide (ELG), which is aligned with a structure in the write head such as the throat height or trailing shield thickness and extends from the lapping region through the ABS and is connected to pads on the surface of the slider. In a second embodiment the ELG is disposed entirely in the section of the slider which will be removed by lapping. Another embodiment of the invention is a system for single slider lapping which simultaneously monitors the resistance of the read sensor or a read head ELG and at least one ELG that is aligned with a structure in the write head. A controller uses the resistance information to implement an algorithm which decides when lapping should be terminated.

Abstract: The fire-protection material for constructions made of concrete and prestressed concrete, especially for tunnels, in the form of prefabricated plates or sprayed-on and cured coatings is prepared from hydraulically curing compositions containing aluminous cement, optionally in admixture with Portland cement, fillers and, if desired, fibers, curing accelerators, curing delayers, plasticizing agents and foaming agents, wherein the cured material contains less than 5% by weight of ettringite and wherein the composition contains from 50 to 200 weight parts of aluminous cement and from 10 to 250 weight parts of xonotlite in the uncured composition.

Abstract: A slider of a magnetic hard disk drive has one or more electric lapping guides in immediate proximity to the read/write stack of the slider. The lapping guides remain part of the slider during its operation. In the preferred embodiment, two essentially identical lapping guides are symmetrically placed on a slider back. One write head terminal is utilized to conductively access the two lapping guides on one side such that only one additional terminal has to be placed on the slider back together with corresponding leads. The placement of lapping guides on the slider back face provides for an economic lapping of individual sliders with increased precision and reliability regardless of any lapping plane skew.

Abstract: This invention provides different compositions extracted from Ginkgo biloba leaves. Said compositions comprise new active components. This invention also provides a method of preparation of the compositions and individual components of said compositions. Finally, this invention provides various uses of this composition.

Abstract: This invention provides different compositions extracted from Ginkgo biloba leaves. Said compositions comprise new active components. This invention also provides a method of preparation of the compositions and individual components of said compositions. Finally, this invention provides various uses of this composition.

Abstract: A three-piece tailor welded blank vehicle door structure includes a periphery defined by a bottom portion, a pair of opposing side portions, a top portion, and an inclined portion. A first thickness gage sheet material portion is disposed generally along the door hinge side of the door structure. A second thicker gage sheet material portion is disposed generally along the door latch side of the door structure. A thinner gage sheet material portion is disposed between the first and second thickness gage sheet material portions, whereby the overall weight of the vehicle door is reduced.

Abstract: A slider of a magnetic hard disk drive has one or more electric lapping guides in immediate proximity to the read/write stack of the slider. The lapping guides remain part of the slider during its operation. In the preferred embodiment, two essentially identical lapping guides are symmetrically placed on a slider back. One write head terminal is utilized to conductively access the two lapping guides on one side such that only one additional terminal has to be placed on the slider back together with corresponding leads. The placement of lapping guides on the slider back face provides for an economic lapping of individual sliders with increased precision and reliability regardless of any lapping plane skew.

Abstract: This invention provides different compositions extracted from Ginkgo biloba leaves. Said compositions comprise new active components. This invention also provides a method of preparation of the compositions and individual components of said compositions. Finally, this invention provides various uses of this composition.

Abstract: A mounting structure 10 having improved stiffness characteristics. The mounting structure 10 includes a pillar 14 which forms a portion of a vehicle body 12 and which operatively supports a vehicle door which is selectively attached to the pillar 14 by hinges 16. The structure 10 includes a pair of “closed-loop” beads which are formed around hinges 16, and which increase the stiffness characteristics of the pillar 14 and of the vehicle door.