摘要:
A method of fabricating a semiconductor device includes the steps of: forming at least one first semiconductor region (51) of a first conductivity type and at least one second semiconductor region (50) of a second conductivity type in a main surface of a semiconductor layer of the first conductivity type; forming a three-layer film having a desired shape on each of the first and second semiconductor regions, the three-layer film being made up of a bottom layer which is a conductive film (56), an intermediate layer which is a silicon nitride film (57), and a top layer which is a polycrystalline silicon film (58) doped with one of arsenic and phosphorus; forming a first insulating layer (61) on the side wall of the three-layer film; forming a second polycrystalline silicon film (62) on the whole surface, and diffusing one of arsenic and phosphorus from the first polycrystalline silicon film (58) into the second polycrystalline silicon film (62); selectively etching off the first polycrystalline silicon film (58) and that portion (62A) of the second polycrystalline silicon film, in which one of arsenic and phosphorus has been diffused; forming a second insulating layer (64) at least on the surface of that portion (63A) of the second polycrystalline silicon film which exists on the second semiconductor region (50); removing the silicon nitride film (57) and the conductive film (56) which exist on the second semiconductor region (50), while using the second insulating layer (64) as a mask, to form an aperture and forming a third polycrystalline silicon film (69) so that the aperture (68) is covered by the third polycrystalline silicon film.
摘要:
An anti-reflection film (2) is produced on the panel surface of a cathode-ray tube (1) by: (A) preparing a solution (8) for forming an anti-reflection film (2), which contains water and an alkoxide having the formula, M(OR) n wherein M is Si or a metal selected from the group consisting of Ti, Al, Zr, Sn, In, Sb and Zn; R is an alkyl group having 1-10 carbon atoms; n is an integer of from 1 to 8; and when n is not 1, the alkyl groups represented by R may be the same or different, (B) coating the solution (8) for forming an anti-reflection film (2) on the outermost surface of the panel of a cathode-ray tube (1), and (C) applying an ultraviolet light (7) to the solution (8) for forming an anti-reflection film (2) coated on said surface to cure the solution to form a transparent film with fine roughness. This production method is carried out using an apparatus having: (a) a coating means (3) for coating the above solution (8) for forming an anti-reflection film (2) on the outermost surface of the panel of a cathode-ray tube (1), (b) a transferring means (4) for transferring the solution-coated cathode-ray tube (1), and (c) an ultraviolet light-applying means (7) for photocuring the solution (8) coated on the cathode-ray tube (1) during the transfer of the solution-coated cathode-ray tube. In the above method, when a silicon alkoxide is used as the metal alkoxide, there can be obtained a cathode-ray tube having an anti-reflection film made of alkali-free silica on the outermost surface of the panel, said anti-reflection film giving a ratio of Si-O-Si peak intensity to Si-OH peak intensity of 4 or more when measured for infrared spectrum. Further embodiments include an antistatic layer and the inclusion of an organic dye into the anti-reflection film.
摘要:
A laminar structure which exhibits a high degree of reliability with respect to prevention of cracks or separation comprises an organic substrate and an inorganic layer. The present invention provides a laminar structure on an organic substrate comprising the organic substrate comprising an organic material and a thin film adhering to the surface of the organic substrate and an element contained in the organic substrate in the vicinity of the surface which produces a metal bonding or covalent bonding with the inorganic layer. Methods for producing this laminar structure and its use in an optical disk or a wiring structure on an organic substrate or a structure suitable for increasing the reliability of a semiconductor integrated circuit device are described.
摘要:
A semiconductor LSI device formed in a semiconductor substrate (10) comprising source/drain regions (11, 12) of a MOSFET, polycrystalline silicon conductor (33) to be connected to the source/drain regions, and a silicide layer (24) interposed between the source/drain region and the polycrystalline silicon conductor. The silicide penetrates the inevitable thin oxide film on the silicon substrate surface, assuring contacts of low resistance, while lateral resistance of the source/drain region formed in the semiconductor substrate (10) is also reduced; this effect can also be used to reduce the contact resistance between two polycrystalline silicon layers (30, 33). Reduction of contact/connection resistance is accomplished in a high density LSI which is thus provided with an improved high-speed performance.
摘要:
An axial-lead glass-molded diode having at least one semiconductor element (3) clamped between a pair of electrode leads (2) by means of a brazing material, and provided with glass (5) covering the periphery thereof by means of molding. Each of the electrode leads comprises an electrode (6) composed of a core material (6a) and a tubular material (6b) and a lead (2) made of a material of the same kind as the core material (6a) and welded thereto. As the core material, a metal excellent in thermal and electrical conductivities, such as copper, is employed, while as the tubular material a metal having a thermal expansion coefficient smaller than that of the core material, such as an invar alloy, is employed, and the core material and the tubular material are metallurgically connected together. The thermal expansion coefficient of the electrode in the longitudinal sectional direction can be regulated by adjusting the thickness of the tubular material with respect to the core material in the crosssectional direction.
摘要:
A thin film transistor formed on an insulating substrate (1, 11) is disclosed in which metal silicide layers (10a, 10b; 15, 16) are formed in a thin film (2, 12) made of a monocrystalline, polycrystalline, or amorphous semiconductor material, to be used as source and drain regions, and further a gate electrode includes a metal silicide layer (10c, 17).