摘要:
A laminate with superior thermal conductivity, heat resistance, drill workability, and fire retardancy is provided. In a prepreg obtained by impregnating a woven or nonwoven fabric base with a thermosetting resin composition, the thermosetting resin composition contains 80 to 200 parts by volume of an inorganic filler per 100 parts by volume of a thermosetting resin, the inorganic filler contains (A) gibbsite type aluminum hydroxide particles having an average particle diameter (D50) of 2 to 15 μm and (B) magnesium oxide having an average particle diameter (D50) of 0.5 to 15 μm, and a compounding ratio (volume ratio) of the gibbsite type aluminum hydroxide particles (A) to the magnesium oxide (B) is 1:0.3 to 3.
摘要:
Disclosed is a prepreg obtained by impregnating a woven fabric base with a thermosetting resin composition, wherein the thermosetting resin composition contains 80 to 200 volume parts of an inorganic filler per 100 volume parts of a thermosetting resin, and the inorganic filler contains (A) gibbsite aluminum hydroxide particles having an average particle diameter (D50) of 2 to 15 μm, (B) at least one inorganic component selected from the group consisting of boehmite particles having an average particle diameter (D50) of 2 to 15 μm and inorganic particles that have an average particle diameter (D50) of 2 to 15 μm and that contain crystal water having a release initiation temperature of 400° C. or higher or contain no crystal water, and (C) aluminum oxide particles having an average particle diameter (D50) of 1.5 μm or smaller, the compounded ratio (volume ratio) of the gibbsite aluminum hydroxide particles (A), the at least one inorganic component (B) selected from the group consisting of the boehmite particles and the inorganic particles, and the aluminum oxide particles (C) being 1:0.1 to 2.5:0.1 to 1.
摘要:
Disclosed is a prepreg obtained by impregnating a woven fabric base with a thermosetting resin composition, wherein the thermosetting resin composition contains 80 to 200 volume parts of an inorganic filler per 100 volume parts of a thermosetting resin, and the inorganic filler contains (A) gibbsite aluminum hydroxide particles having an average particle diameter (D50) of 2 to 15 μm, (B) at least one inorganic component selected from the group consisting of boehmite particles having an average particle diameter (D50) of 2 to 15 μm and inorganic particles that have an average particle diameter (D50) of 2 to 15 μm and that contain crystal water having a release initiation temperature of 400° C. or higher or contain no crystal water, and (C) aluminum oxide particles having an average particle diameter (D50) of 1.5 μm or smaller, the compounded ratio (volume ratio) of the gibbsite aluminum hydroxide particles (A), the at least one inorganic component (B) selected from the group consisting of the boehmite particles and the inorganic particles, and the aluminum oxide particles (C) being 1:0.1 to 2.5:0.1 to 1.
摘要:
A laminate with superior thermal conductivity, heat resistance, drill workability, and fire retardancy is provided. In a prepreg obtained by impregnating a woven or nonwoven fabric base with a thermosetting resin composition, the thermosetting resin composition contains 80 to 200 parts by volume of an inorganic filler per 100 parts by volume of a thermosetting resin, the inorganic filler contains (A) gibbsite type aluminum hydroxide particles having an average particle diameter (D50) of 2 to 15 μm and (B) magnesium oxide having an average particle diameter (D50) of 0.5 to 15 μm, and a compounding ratio (volume ratio) of the gibbsite type aluminum hydroxide particles (A) to the magnesium oxide (B) is 1:0.3 to 3.
摘要:
A multi-layer printed-wiring-board is used in densely packaging electronic components such as semiconductors having improved function, and a production method therefor, and more specifically it achieves a multi-layer printed-wiring-board having excellent copper-foil-peel-strength and high connection-reliability in which occurrence of structural defects such as delamination (interlayer peeling) is prevented, and a production method therefor. Because of thinning of the printed-wiring-board or diversification of insulating layers constituting the printed-wiring-board, peeling such as delamination may occur between the insulating layers or in an interface between the insulating layer and the plated conductor. By providing pores in substantially the same plane as wiring patterns in the printed-wiring-board including insulating layers, wiring pattern layers made of copper foil alternately laminated on the insulating layers, and pores provided between the wiring patterns, a printed-wiring-board having high connection reliability free from delamination or cracks during heating or in heat cycle conditions.
摘要:
A multi-layer printed-wiring-board is used in densely packaging electronic components such as semiconductors having improved function, and a production method therefor, and more specifically it achieves a multi-layer printed-wiring-board having excellent copper-foil-peel-strength and high connection-reliability in which occurrence of structural defects such as delamination (interlayer peeling) is prevented, and a production method therefor. Because of thinning of the printed-wiring-board or diversification of insulating layers constituting the printed-wiring-board, peeling such as delamination may occur between the insulating layers or in an interface between the insulating layer and the plated conductor. By providing pores in substantially the same plane as wiring patterns in the printed-wiring-board including insulating layers, wiring pattern layers made of copper foil alternately laminated on the insulating layers, and pores provided between the wiring patterns, a printed-wiring-board having high connection reliability free from delamination or cracks during heating or in heat cycle conditions.
摘要:
A module with a built-in component is provided which can be produced without a via-forming step. The module with a built-in component 100 includes an insulating sheet substrate 10 which has an upper surface 10a, a lower surface 10b opposed to the upper surface 10b and a side surface 10c which connects these surfaces. At least one wiring 20 extends from the upper surface to the lower surface through the side surface, and an electronic component 32 is disposed within the sheet substrate.
摘要:
A usability evaluation apparatus evaluates usability of evaluation objects by evaluation items (201 and 202) that have a hierarchical structure that is divided into a plurality of hierarchies and supplies usability evaluation points (206) that are the evaluation results to an output element. The output element is caused to supply as output a tree map in which are represented rectangular regions that have shapes that accord with degrees of importance (203 and 204) that indicate the relative importance of evaluation items (201 and 202) in the hierarchy and that indicate the evaluation items (201 and 202) such that the hierarchical structure can be distinguished and graphs that indicate the absolute values of usability evaluation points (206) such that the graphs are depicted in rectangular regions (501) that indicate the lowest-level evaluation items on the tree map according to the shape of the rectangular regions (501).
摘要:
A multilayered substrate includes a plurality of circuit boards including a plurality of wiring layers including a grounding layer and a power layer, a solid electrolytic capacitor having an insulative oxide film layer, an electrolytic layer, and a conductor layer sequentially formed on one surface or both surfaces of a foil-like metal substrate, and a conductive substance passing through the circuit board across a thickness thereof. The solid electrolytic capacitor is disposed to be held between the plurality of circuit boards. The conductor layer is connected to a grounding electrode formed on the grounding layer, the foil-like metal substrate being connected to a power electrode formed on the power layer.
摘要:
A circuit component built-in module includes: a first electrical insulating substrate made of a mixture containing an inorganic filler and a thermosetting resin; a plurality of wiring patterns formed at least on a principal surface of the first electrical insulating substrate; a semiconductor chip incorporated in the first electrical insulating substrate and connected electrically with the wiring patterns; and inner vias electrically connecting the plurality of wiring patterns with one another, the inner vias passing through the first electrical insulating substrate. In the circuit component built-in module, the semiconductor chip has a thickness of not less than 30 μm and not more than 100 μm, and has a non-wired surface ground, and the circuit component built-in module has a thickness in a range of not less than 80 μm and not more than 200 μm. With this configuration, the high-performance and compact-size circuit component built-in module in which circuit components are mounted at a high density is provided so as to be used suitably in various types of electronic information devices.