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.
摘要:
After formation of a lower electrode, made of an Ru film, over the side walls and bottom portion of a hole in a silicon oxide film, wherein an information storage capacitive element is to be formed, a tantalum oxide film, which is to serves as a capacitive insulating film, is deposited by CVD over the lower electrode. In order to improve the quality of this tantalum oxide film, heat treatment of it is conducted in a mixed gas atmosphere of H2O (water vapor) and H2 (hydrogen), while controlling a partial pressure ratio of H2O to H2 so as to fall within a region bounded by the curves (a) and (c) of FIG. 15. This heat treatment makes it possible to improve the quality of the tantalum oxide film, while preventing oxidation of the Ru film constituting the lower electrode.
摘要:
The back side of a strip substrate with plural semiconductor chips mounted thereon is vacuum-chucked to a lower mold half of a mold, and in this state the plural semiconductor chips are sealed with resin simultaneously to form a seal member. Thereafter, the strip substrate and the seal member are released from the mold and are cut into plural semiconductor devices. The semiconductor devices thus obtained are improved in their mounting reliability.
摘要:
An exposure apparatus includes a projection optical system of a catadioptric type and an optical element disposed on a reciprocating light path of the projection optical system. The optical element is movable along an optical axis direction.
摘要:
A reflection type magnification projection optical system includes five light-reflecting mirrors arranged from an object side to an image side in a sequence of a concave mirror (M1), a convex mirror (M2), a concave mirror (M3), a convex mirror (M4), and a concave mirror (M5) such that those mirrors basically form a coaxial system, and forming no intermediate image, and wherein an object point and an image point are respectively on opposite sides across an optical axis, and the object point and the image point are kept 400˜1500 mm apart with respect to a direction orthogonal to the optical axis.
摘要:
A phase shift mask blank comprising a transparent substrate and at least one layer of a phase shifter thereon, wherein the phase shifter is a film composed primarily of a fluorine-doped metal silicide, can be fabricated into a high-performance phase shift mask having adequate transmittance and good stability over time even when used with light sources that emit short-wavelength light. The phase shift mask can be used to fabricate semiconductor integrated circuits to a smaller minimum feature size and a higher level of integration.
摘要:
A magnetic disk unit includes a magnetic disk, a slider having a magnetic head, a suspension for providing the slider, and an actuator arm for positioning the slider 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. 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. When the slider is seek-positioned on a certain track on the magnetic disk, a frictional force exerted between the first pad of the slider and the magnetic disk is smaller than a product of lateral stiffness of the suspension in a seeking direction and a track width.
摘要:
A producing method of a metal band of a metal belt for a belt-type continuously variable transmission includes the following steps of: superposing a predetermined number of blank rings concentrically on one another to constitute a laminated blank rings; fitting the laminated blank rings to an outer periphery of a circle jig made of material having higher thermal expansivity than that of the blank ring; heating the laminated blank rings together with the circle jig; and deforming the laminated blank rings plastically by thermal expansion of the circle jig.