摘要:
A magnetic disk unit includes a magnetic disk attached to a spindle so as to be rotatable, a slider having a magnetic head for reading/writing data onto/from the magnetic disk, a suspension for providing the slider with a predetermined load, and an actuator arm for positioning the slider attached to the suspension on the magnetic disk. A first pad including the magnetic head and second pads including no magnetic heads are disposed on an air bearing surface of the slider. During rotation of said magnetic disk, a part of the first pad keeps in contact with the magnetic disk. A load point of the suspension with respect to the slider is positioned between a leading edge of the slider and a position located at a distance equivalent to substantially 0.42 times a whole length of the slider from the leading edge of the slider.
摘要:
A connector includes contacts each having a contact portion, an elastic portion and a fulcrum portion between the contact portion and a connection portion, and a pressure receiving portion; a housing fixing the contacts; and a slider having urging portions pivotally moved between the connection and pressure receiving portions of the contacts to urging the contact portions against the circuit board, thereby achieving reliable connection and miniaturization of the connector. In an aspect, the housing is formed on the side of a board insertion opening with a recessed portion for conducting the board. In another aspect, the contact includes upper and lower contact portions one above the other arranged alternately staggered so as to be connected to a circuit board having contact portions alternately staggered, so that no defective connection occurs, even if the circuit board is inserted erroneously upside down. In a further aspect, the connector further includes locking members having an engaging portion which engages an anchoring portion of the circuit board to prevent the circuit board from being removed. In one aspect, contacts of two kinds are inserted into the housing from opposite sides, respectively so that these contacts of the two kinds are into contact with the contact portions on respective surfaces of the circuit board. In a further aspect, moreover, a plate-shaped piece is provided in opposition to the contact portions of the contacts to prevent the housing from being deformed.
摘要:
A connector includes contacts each having a contact portion, an elastic portion and a fulcrum portion between the contact portion and a connection portion, and a pressure receiving portion; a housing fixing the contacts; and a slider having urging portions pivotally moved between the connection and pressure receiving portions of the contacts to urging the contact portions against the circuit board, thereby achieving reliable connection and miniaturization of the connector. In an aspect, the housing is formed on the side of a board insertion opening with a recessed portion for conducting the board. In another aspect, the contact includes upper and lower contact portions one above the other arranged alternately staggered so as to be connected to a circuit board having contact portions alternately staggered, so that no defective connection occurs, even if the circuit board is inserted erroneously upside down. In a further aspect, the connector further includes locking members having an engaging portion which engages an anchoring portion of the circuit board to prevent the circuit board from being removed. In one aspect, contacts of two kinds are inserted into the housing from opposite sides, respectively so that these contacts of the two kinds are into contact with the contact portions on respective surfaces of the circuit board. In a further aspect, moreover, a plate-shaped piece is provided in opposition to the contact portions of the contacts to prevent the housing from being deformed.
摘要:
A projection optical system for performing reduction projection of a pattern of a reticle onto a projection plane. The system includes a first mirror having a concave reflective surface, a second mirror having a reflective surface, a third mirror having a convex reflective surface, a fourth mirror having a concave reflective surface, a fifth mirror having a convex reflective surface, and a sixth mirror having a concave reflective surface. The reflective surface of the fourth mirror has a curvature radius of not less than 400 mm and not more than 800 mm in absolute value. The reflective surface of the sixth mirror has a curvature radius of not less than 400 mm and not more than 600 mm in absolute value, and the reflective surfaces of the first, second, third, fourth, fifth and sixth mirrors have curvatures of not more than 1500 mm in absolute value, respectively.
摘要:
A diffusion layer 3a of a silicon substrate, a polycrystalline silicon material 10, or a gate electrode 12 is connected to a conductive film 8 through a titanium silicide film 6 within a contact hole 5 provided in an insulating film 4. The titanium silicide film 6 is formed by the silicide reaction between a titanium film 7 and the silicon. The upper limit of the thickness of the titanium silicide film 6, and the upper limit of the titanium film 7 are specified by the internal stress within the conductive film 8.
摘要:
Processed cheeses with an antihypertensive effect greater than that of conventional cheese are provided in order to obtain a sufficient antihypertensive effect with a small intake. Specifically, processed cheeses with ACE inhibitory activity of 350 units per gram or more are manufactured using natural cheese such as cheddar cheese produced in New Zealand and Emmental cheese produced in Switzerland with ACE inhibitory activity of 420 units per grams or more. In addition, it is preferable to use low salt or unsalted natural cheese as a raw material, and use potassium salt as molten salt in order to make sodium content 990 mg or less per 100 g of processed cheese.
摘要:
An implantation step of a dopant ion for forming source and drain regions (S and D) is divided into one implantation of a dopant ion for forming a p/n junction with a well region (3), and one implantation of a dopant ion that does not influence a position of the p/n junction between the source and drain regions (S and D) and the well region with a shallow implantation depth and a large implantation amount. After conducting an activation heat treatment of the dopant, a surface of the source/drain region is made into cobalt silicide 12, so that the source/drain region (S and D) can have a low resistance, and a p/n junction leakage can be reduced.
摘要:
A Co silicide layer having a low resistance and a small junction leakage current is formed on the surface of the gate electrode, source and drain of MOSFETs by silicidizing a Co film deposited on a main plane of a wafer by sputtering using a high purity Co target having a Co purity of at least 99.99% and Fe and Ni contents of not greater than 10 ppm, preferably having a Co purity of 99.999%.
摘要:
To find the deterioration degree of a heater that heats a furnace. The present invention includes: a current detector 21 that detects a level of a current flowing through a heater 7 that is heated based on a commercial power source 1; a voltage detector 20 that detects a level of a voltage applied to the heater 7; a temperature detector 22 that detects a temperature of the heater 7; a table memory 14 on which a temperature coefficient of resistance for use in calculation of a resistance of the heater 7 at a time of manufacture is stored; and a CPU 17A that calculates a resistance of the heater 7 at an inspection time based on respective detection results by the voltage detector 20 and the current detector 21 and calculates the resistance of the heater 7 at a reference time based on a detection result by the temperature detector 22 and the temperature coefficient of resistance stored on the table memory 14, thereby finding the deterioration degree of the heater 7 based on the resistance of the heater 7 at the inspection time and the resistance of the heater 7 at the reference time.
摘要:
A non-leaded resin-sealed semiconductor device is manufactured by the steps of providing a conductive flat substrate (metal plate) of copper plate or the like, fixing semiconductor elements respectively to predetermined positions on the principal surface of the substrate by an insulating adhesive, electrically connecting electrodes on the surfaces of the semiconductor elements with predetermined partition parts of the substrate separate from the semiconductor elements by conductive wires, forming an insulating resin layer on the principal surface of the substrate to cover the semiconductor elements and wires, selectively removing the substrate from the rear of said substrate to form electrically independent partition parts whereof at least some are external electrode terminals, and selectively removing said resin layer to fragment the device into regions containing the semiconductor elements and the plural partition parts around the semiconductor elements. Thus, there is provided a compact non-leaded semiconductor device having a large number of electrode terminals.