摘要:
A printed wiring board including a wiring substrate provided with at least one conductor circuit, a solder resist layer provided on the surface of the wiring substrate, at least one conductor pad formed from a part of the conductor circuit exposed from an opening provided in the solder resist layer, and at least one solder bump for mounting electronic parts on the conductor pad. In the printed wiring board, since the at least one conductor pad is aligned at a pitch of about 200 μm or less, and a ratio (W/D) of a diameter W of the solder bump to an opening diameter D of the opening formed in the solder resist layer is about 1.05 to about 1.7, connection reliability and insulation reliability can be easily improved.
摘要:
A method of manufacturing a printed wiring board includes preparing a wiring substrate having a conductive circuit, coating a solder-resist layer over the conductive circuit, leveling a surface of the solder-resist layer so as to obtain a maximum surface roughness in a predetermined range, removing the resin film from the surface of the solder-resist layer, and forming multiple openings in the surface of the solder-resist layer to expose multiple portions of the conductive circuit so as to form multiple conductive pads for mounting an electronic components.
摘要:
A method of manufacturing a multilayered printed wiring board including forming a multilayered core substrate including insulation layers and one or more stacked via structures formed through the insulation layers, the stacked via structure including vias formed in the insulation layers, respectively, the insulation layers in the multilayered core substrate including at least three insulation layers and each of the insulation layers in the multilayered core substrate including a core material impregnated with a resin, and forming a build-up structure over the multilayered core substrate and including interlaminar insulation layers and conductor circuits, each of the interlaminar insulation layers including a resin material without a core material.
摘要:
A printed wiring board includes a wiring substrate, one or more conductor circuits provided on the wiring substrate, a solder resist layer provided on a surface of the wiring substrate and having multiple openings, the openings exposing multiple parts of the conductor circuits forming multiple conductor pads for mounting electronic parts, and multiple solder bumps formed on the conductor pads, respectively. The conductor pads are aligned at a pitch of about 200 μm or less, and a ratio W/D of a diameter W of the solder bumps to an opening diameter D of the openings formed in the solder resist layer is about 1.05 to about 1.7.
摘要:
A printed wiring board is manufactured by a method in which a laminate body having a first insulation layer and a conductive film is provided. An alignment mark is formed in the laminate body by removing at least a portion of the conductive film. An electronic component is placed on an adhesive layer provided on the first insulation layer at a position determined based on the alignment mark. After the electronic component is enclosed inside an opening of the second insulation layer, a via hole exposing a terminal of the electronic component is formed at a position determined based on the alignment mark used to determine the position of the electronic component. A via conductor is formed in the via hole, and a conductive layer is formed on the conductive film and patterned to form a conductive circuit connected to the via conductor.
摘要:
Novel compounds that have been found effective in inhibiting PDZ domain interactions, and particularly interactions of PDZ domains in MAGIs with the oncogenic (tumor suppressor) protein PTEN and interactions between the PDZ domain in the Dishevelled (Dvl) protein and other proteins such as the Frizzled (Fz) protein, have the general formula (I) or (III) The invention also includes combinatorial libraries, arrays and methods for screening and studying proteins using such compounds. Compounds of the invention have produced apoptosis in certain cell lines that overexpress the Dishevelled protein (Dvl), inhibiting Wnt signaling.
摘要:
A printed wiring board comprises a wiring substrate provided with at least one conductor circuit, a solder resist layer provided on the surface of the wiring substrate, at least one conductor pad formed from a part of the conductor circuit exposed from an opening provided in the solder resist layer, and at least one solder bump for mounting electronic parts on the conductor pad. In the printed wiring board, since the at least one conductor pad is aligned at a pitch of about 200 μm or less, and a ratio (W/D) of a diameter W of the solder bump to an opening diameter D of the opening formed in the solder resist layer is about 1.05 to about 1.7, connection reliability and insulation reliability can be easily improved.
摘要:
A printed wiring board comprises a wiring substrate provided with at least one conductor circuit, a solder resist layer formed on the surface of the wiring substrate, covering the at least one conductor circuit, conductor pads formed on a part of the at least one conductor circuit exposed from respective openings provided in the solder resist layer for mounting electronic parts, and solder bumps formed on the respective conductor pads. Connection reliability and insulation reliability are easily improved by making the ratio (H/D) of a height H from solder resist layer surface the solder bump to an opening diameter of the opening about 0.55 to about 1.0 even in narrow pitch structure under the pitch of the opening provided in the solder resist layer of about 200 μm or less.
摘要:
This invention relates to new aminoalcohol derivatives or salts thereof represented by the following formula [I]: wherein each symbol is as defined in the specification or salts thereof which have gut selective sympathomimetic, anti-ulcerous, anti-pancreatitis, lipolytic, anti-urinary incontinence and anti-pollakiuria activities, to processes for the preparation thereof, to a pharmaceutical composition comprising the same and to a method for the prevention and/or treatment diseases indicated in the specification to a human being or an animal.
摘要:
This invention relates to new propanolamine derivatives or salts thereof represented by the following formula [I]: Wherein each symbol is as defined in the specification or salts thereof which have gut selective sympathomimetic, anti-ulcerous, anti-pancreatitis, lipolytic, anti-urinary incontinence and anti-pollakiuria activities, to processes for the preparation thereof, to a pharmaceutical composition comprising the same and to a method for the prevention and/or treatment diseases indicated in the specification to a human being or an animal.