摘要:
A method of manufacturing an electronic apparatus including a first and a second components, includes: forming a first solder bump on one of the first component and the second component; forming a second solder bump on the other one of the first component and the second component; bringing the first solder bump into contact with the second solder bump at a temperature higher than the liquidus temperature of any of the first and the second solder bumps such that the first and the second solder bumps are fused together to form a solder joint of an alloy having a lower liquidus temperature than any of the first and the second solder bumps; and solidifying the solder joint between the first and the second component.
摘要:
A multi-chip module includes a package board, a plurality of chips, and a wiring board. The plurality of chips are horizontally disposed on the package board. The plurality of chips are electrically connected with the package board, and respectively provided with via holes which penetrate through the plurality of chips. The plurality of chips are respectively provided with circuits at surfaces facing the package board. The wiring board is disposed on an opposite side to the package board across the plurality of chips. The wiring board includes a wiring pattern which is electrically connecting adjacent chips one another. The circuit is electrically connected to the wiring pattern through the via holes.
摘要:
A multichip module comprising: a base substrate; a wiring board disposed on the base substrate and having a wiring pattern; an adhesive layer configured to bond the base substrate to the wiring board while maintaining an electrical connection between the base substrate and the wiring board; and a plurality of chips connected to a surface of the wiring board, the surface being opposite the adhesive layer, wherein, assuming that α is a coefficient of thermal expansion of the wiring board, β is a coefficient of thermal expansion of the base substrate, and γ is a coefficient of thermal expansion of the adhesive layer, the relationship α
摘要:
A multi-chip module includes a package board, a plurality of chips, and a wiring board. The plurality of chips are horizontally disposed on the package board. The plurality of chips are electrically connected with the package board, and respectively provided with via holes which penetrate through the plurality of chips. The plurality of chips are respectively provided with circuits at surfaces facing the package board. The wiring board is disposed on an opposite side to the package board across the plurality of chips. The wiring board includes a wiring pattern which is electrically connecting adjacent chips one another. The circuit is electrically connected to the wiring pattern through the via holes.
摘要:
A laminating step includes a second step of laminating a second insulation layer on a conductive pattern last formed at a first step, roughening the surface of the laminated second insulation layer excluding a desired area, and forming a conductive layer on at least the desired area of the surface of the second insulation layer, and a processing step includes a removing step of removing an upper part of the area higher than the second insulation layer on the substrate obtained at the laminating step, and an exposing step of exposing a part of the area of a conductive pattern adjacent to the lower side of the second insulation layer.
摘要:
A semiconductor device includes a semiconductor element; a board where the semiconductor element is mounted; a heat radiation member thermally connected to the semiconductor element and fixed to the board; and a plurality of outside connection terminals provided on a surface opposite to a surface where the heat radiation member is provided of the board; wherein a fixing position where the heat radiation member is fixed to the board is substantially positioned on an inscribing circle; and the center of the inscribing circle is a center position of the board and the inscribing circle inscribes the heat radiation member.
摘要:
A packaging method, a packaging structure and a package is substrate capable of restraining a warp of a thin film substrate, increasing a product yield, and building up a sufficient cooling capacity in the case of mounting an LSI having a high exothermic quantity. A package substrate 1 of the invention is such that an opening 11 is formed in a first substrate 12, a thin film substrate (a second substrate) 13 is laminated on the first substrate 12, the opening 11 is covered with the thin film substrate 13. Next, a capacitor (a first electronic part) 14 is inserted into the opening 11 and bonded to the thin film substrate, a resin 15 fills an interior of the opening 11 to a fixed or larger thickness and is hardened, the thin film substrate 13 and the capacitor 14 are thereby sustained by the resin 15, an LSI 16 (a second electronic part) that should be connected to the capacitor 14 is bonded to a surface, on an exposed side, of the thin film substrate 13, and the capacitor 14 is connected to the LSI 16.
摘要:
A package substrate has a power supply path different from a signal supply path to a semiconductor element. A semiconductor element is mounted on a first surface of the package substrate. A second surface opposite to the first surface is provided with external connection terminals. A power supply layer is formed inside the package substrate. The package substrate has electrode terminals provided in a part other than the second surface. The electrode terminals are connected to the power supply layer.