摘要:
A pigment dispersion including photopolymerizable compounds and pigments as well as an actinic radiation curable type ink jet composition including photopolymerizable compounds, photopolymerization initiators, and pigments are provided. The hydrophilicity δm of the surface of pigments incorporated therein is at most 22.
摘要:
A chip mounting substrate comprising: a mounting base defined by a first surface and a second surface opposite to the first surface; a plurality of first lands disposed on the first surface, being classified into first and second groups of the first lands; and a plurality of second lands disposed on the second surface so as to face to the first lands, being classified into first and second groups of the second lands.
摘要:
On a wafer, patterns of arrayed waveguide gratings are formed. Each arrayed waveguide grating has an arcuate shape obtained by arranging two curved-line portions convexed in the same direction at a predetermined spacing and connecting respective end portions thereof with two mutually parallel straight lines. These arrayed waveguide gratings are cut out along straight cutting paths and curved cutting paths in which two arcuate portions of the same shape are arranged side by side in a lateral direction. Thus, a larger number of chips can be produced as compared with a case where each array waveguide grating is cut out in a rectangular shape. Ultrasonic machining techniques or sandblast machining techniques are suitable for the cutting operation.
摘要:
In order to provide a wiring board comprising a magnetic material effective in suppressing spurious radiation in semiconductor devices and electronic circuits and the like that operate at high speeds, a wiring board (15) comprises an insulative base material (17), conductor patterns (19a to 19f) formed thereon, and magnetic thin films (21a to 21f) formed on the conductor patterns (19a to 19f). The magnetic thin film is configured of a magnetic loss material represented by M—X—Y, where M is at least one of Fe, Co, and Ni, X is at least one element other than M or Y, and Y is at least one of F, N, and O, the maximum value &mgr;″max of the loss factor &mgr;″ that is an imaginary component in the complex permeability characteristic of the magnetic loss material exists within a frequency range of 100 MHz to 10 GHz, and a relative bandwidth bwr is not greater than 200% or not smaller than 150% where the relative bandwidth bwr is obtained by extracting a frequency bandwidth between two frequencies at which the value of &mgr;″ is 50% of the maximum &mgr;″max and normalizing the frequency bandwidth at the center frequency thereof.
摘要:
A biaxially oriented polyester film for a membrane switch, which is made from a polyester containing at least 80 mol % of ethylene-2,6-naphthalene dicarboxylate recurring units and which has an endothermic peak with an endothermic energy of at least 0.4 mJ/mg at a temperature of 110 to 160.degree. C.This film is produced by subjecting a biaxially oriented polyester film produced from the above polyester in accordance with a method known per se to the following steps in the order named:(1) the step of heating the film under no strain at a temperature of 150 to 180.degree. C. for 1 to 5 hours; and(2) the step of heating the film in an unrolled or rolled state at a temperature of 80 to 122.degree. C. for 5 to 200 hours.
摘要:
A biaxially oriented film (1) which is substantially formed from a polyethylene naphthalate copolymer comprising ethylene-2,6-naphthalate units in an amount of 90 to 99.9 mol % based on the total of all recurring units and an isophthalic acid component or a decalin-2,6-dicarboxylic acid component in an amount of 0.1 to 10 mol % based on the total of all dicarboxylic acid components and which has (2) Young's modulus of 500 kg/mm.sup.2 or more in each of a longitudinal direction and a transverse direction, (3) a plane orientation coefficient of 0.230 to 0.275 and (4) a density of 1.350 g/cm.sup.3 or more.
摘要:
A contact hole having an opening diameter smaller than the minimum dimension that can be formed by photolithographic technique is formed. Using an interlayer insulating film 8 formed on a semiconductor substrate as an etching mask, etching is carried out halfway to form an opening 8a. The etching mask is removed, and a TEOS film 10 is formed on the interlayer oxide film 8. The whole surface is then etched anisotropically to form a contact hole 11.
摘要:
A semiconductor device manufacturing method which involves a fewer number of manufacturing processes and which eliminates the use of expensive high precision stepper and half-tone mask, or the like, by employing a simplified process flow, in which method an identical mask is reused to ensure registration margin without involving a high-resolution process. A contact hole requires solely a minimum diameter of 0.30 .mu.m or thereabouts, thereby resulting in and added margin for the minimum diameter and eliminating a process for reducing a hole diameter. Even if the hole diameter has a deviation of about 0.05 .mu.m, contact can be established with a silicon substrate, thereby eliminating a necessity for an expensive, high precision stepper which has been required for ensuring a registration margin. A damaged layer, which would otherwise cause an increase in the resistance of the storage node direct contact, is eliminated simultaneously with etching of a thick polysilicon film, thus eliminating a chemical dry etching (CDE) process which has conventionally been used for removing a damaged layer.
摘要:
When exposure light reaches a silicon oxide film, this light is multiply reflected in the silicon oxide film to spread or narrow a photoresist layer. A tungsten silicide film prevents the exposure light from reaching the silicon oxide film. This silicon oxide film is employed as a mask to selectively remove a polycrystalline silicon film and a tungsten silicide film by etching for forming a gate electrode, while the tungsten silicide film is simultaneously removed by this etching.
摘要:
A developing solution of an imagewise exposed, presensitized offset printing plate is disclosed. The developing solution has a pH of at least 12.5, and contains a low content of a silicate in an amount of up to 1.0 wt % as SiO.sub.2, a surfactant in an amount of 0.01 to 10 wt %, an aromatic carboxylic acid in an amount of 0.1 to 10 wt %, and an amine compound represented by the following general formula (I) in an amount of 0.1 to 10 wt %:R.sub.1 --N(R.sub.2)--J--OH (I)wherein R.sub.1 and R.sub.2 are each independently a hydrogen atom, a group --C.sub.2 H.sub.4 OH or a group --C.sub.3 H.sub.6 OH; and J is a group --C.sub.2 H.sub.4 -- or --C.sub.3 H.sub.6 --.