摘要:
A naphthalocyanine derivative of the formula: ##STR1## wherein M, Y, R.sup.1, k, l, m, n are as defined in the specification, is an effective substance for forming a recording layer on a substrate of an optical recording medium having high sensitivity with good properties.
摘要:
A derivative of naphthalocyanine containing a perfluoroalkyl group and having a particular structure for ensuring excellent weather-proof properties, extremely high solubility in various solvents and capability of forming a film, and an optical recording medium prepared by using the derivative and capable of recording while using a focused beam of a semiconductor laser or the like. The derivative of naphthalocyanine containing a perfluoroalkyl group may be prepared by reacting a perfluoroalkanoyl peroxide having a particular structure with a naphthalocyanine.
摘要:
The present invention provide a process for producing printed circuit boards which comprises the steps of(a) roughening a surface of a copper layer formed on an insulating board.(b) coating the roughened surface of copper layer with a photo-resist layer containing a sublimable copper-corrosion inhibitor, exposing the resist layer selectively to actinic rays according to a circuit pattern to form, and developing the resulting resist layer, thereby forming plating-resist coats on circuit-negative pattern portions of the copper layer,(c) heat-treating the plating-resist coats,(d) plating chemically the circuit-corresponding portion with copper,(e) removing the plating-resist coats, and(f) removing the copper layer except the circuit-corresponding portion thereof.
摘要:
A photoinitiator composition comprising (1) an aminobenzylidene carbonyl compound and (2) an N-aryl-.alpha.-amino acid is suitable for use in a photo-polymerizable composition comprising (a) an addition-polymerizable compound having a boiling point of 100.degree. C. or higher at an atmospheric pressure and (b) said photoinitiator composition.
摘要:
There is disclosed an electrophotographic plate comprising an electroconductive supporting substrate and a photoconductive layer formed thereon, wherein the photoconductive layer contains an organic photoconductive material as a charge generation material, said organic photoconductive material being a naphthalocyanine compound represented by the formula ##STR1## or the general formula ##STR2## wherein M denotes one member selected from the group consisting of Cu, Zn, Mg, OTi, OV, ClAl ClGa, ClIn, Cl.sub.2 Si, Cl.sub.2 Ge, and Cl.sub.2 Sn.
摘要:
A measuring instrument includes a detector that outputs a measured value, a digital display unit, an analog display unit having a plurality of display segments, and a display controller. The display controller includes: a tolerance range display unit that lights or blinks display segments corresponding to a preset tolerance range relative to a preset value; a first determiner that obtains a difference between the present value and a present measured value and determines whether the difference is within an analog display range wider than the tolerance range; a difference display unit that lights a display segment corresponding to the last one or the last two digits of the present measured value when the first determiner determines that the difference is within the analog display range; a second determiner that determines whether the difference is within the tolerance range; and an acceptance or rejection display unit that displays a result determined by the second determiner.
摘要:
A communication radio-frequency module is provided that has a semiconductor device to which an antenna element is connected. This communication radio-frequency module includes: a supporting body that has a waveguide formed therein; a wiring board that is fixed onto a surface of the supporting body; the semiconductor device that is flip-chip mounted onto the wiring board by ultrasonic bonding; and the antenna element that is disposed on the other surface of the supporting body. In this module, the wiring board includes a board core member that is made of a resin material, and the supporting body includes a supporting body core member that is also made of a resin material.
摘要:
The wiring board comprises a plate-shaped conductive core material 10 with a through-hole 12 formed in, an insulation layer 14 formed on the surface of the conductive core material 10 and on the inside wall of the through-hole 12, a resin 18 buried in the through-hole 12 with the insulation layer 14 formed in, wirings 22a, 22b formed on the upper surface and the undersurface of the conductive core material 10 with the insulation layer 14 formed on, and an wiring 22d formed in the through-hole 20 formed in the resin 18 and electrically connected to the wirings 22a, 22b.
摘要:
A high-frequency module includes a stiffener (a support substrate), a resin base member of which one surface is fixed to the stiffener, a first conductive pattern formed on said one surface of the resin base member, a second conductive pattern formed on the other surface of the resin base member for constituting a waveguide in combination with the first conductive pattern to pass a high-frequency signal through the resin base member and including a window for allowing the high-frequency signal to pass therethrough, a cap for covering a semiconductor element and for absorbing or reflecting the high-frequency signal, an adopter (a waveguide tube) fixed onto the second conductive pattern such that one open end thereof surrounds the window, and an antenna fixed to the other open end of the adaptor.