摘要:
A method of manufacturing a semiconductor device which can reduce the number of times of resin-injection, thereby facilitating the miniaturization of the semiconductor device, and the semiconductor device. After resin is injected into a space between at least two second semiconductor chips flip-chip joined to a first semiconductor chip through an injection opening, the resin is hardened.
摘要:
According to this invention, a method for fabricating a semiconductor package, in which a plurality of semiconductor chips having a through electrode is layered on a semiconductor interposer, comprising: mounting and layering a plurality of semiconductor chips on a first surface of a semiconductor wafer, which is to be used for a semiconductor interposer; forming a mold resin over the semiconductor chips to cover the semiconductor chips entirely; and dicing the semiconductor wafer to form a plurality of individual semiconductor packages.
摘要:
To improve the fabrication yield of semiconductor devices. A semiconductor device where a desired number of semiconductor chips are laminated in the thickness direction thereof is fabricated by repeating, an arbitrary number of times such as one time or two or more times, a step of bonding and mounting another support substrate laminate on first bumps exposed by separating and removing one support substrate from a support substrate laminate composite where second bumps of two support substrate laminates including plural semiconductor wafers mounted on support substrates have been made to face each other and are electrically connected.
摘要:
A stacked multi-chip package includes a substrate, a first chip and a second chip. The first chip is fixed to the substrate, and is provided with a collar portion which opposes an upper face of the substrate in a state such that a gap is formed between the upper face of the substrate and the collar portion. The second chip is disposed in a region below the collar portion. The second chip is fixed to the substrate and does not make contact with the first chip.
摘要:
A metal pattern 4 is formed at a rear surface of a substrate 3 at a front surface of which a molded semiconductor chip is mounted, the metal pattern 4 is covered with an insulating film 5 except at its connecting area 4a and a solder ball 6 is bonded to the connecting area 4a. The area of the metal pattern 4 other than the connecting area 4a inclines toward the substrate 3 and gradually becomes thinner toward the outside. Stress, which is applied to the solder ball 6, is imparted in a diagonal direction and is dispersed. As a result, the number of occurrences of cracks X is reduced and the solder ball which is used to achieve connection with an external substrate is effectively prevented from becoming electrically disconnected.
摘要:
A semiconductor device having a semiconductor substrate including a first surface and a second surface corresponding to a back surface with respect to the first surface and having first through electrodes which extend through the first surface and the second surface, semiconductor chips which are mounted over the first surface of the semiconductor substrate and each of which is constituted of a material of the same kind as the semiconductor substrate and has a circuit element electrically connected to the first through electrodes, stress relaxing sections which are provided with first conductors formed over the second surface of the semiconductor substrate and electrically connected to the first through electrodes of the semiconductor substrate and having flexibility, and external connecting terminals provided over the stress relaxing sections and connected to the first conductors respectively.
摘要:
A semiconductor package according to the present invention includes a substrate; first and second semiconductor chips mounted on a first surface of the substrate; and a heat-radiation sheet. The heat-radiation sheet includes a heat-transferable conductive layer and first and second insulating layers formed on top and bottom surfaces of the heat-transferable conductive layer, respectively. The heat-radiation sheet includes a first portion arranged between the first semiconductor chip and the second semiconductor chip; and a second portion extending at least a side of the first portion. The second portion is connected to the substrate. The second insulating layer of the second portion is formed to expose a part of the heat-transferable conductive layer.
摘要:
There is provided a method for manufacturing a printed circuit board having an insulative board and a plurality of electroconductive pads arranged in a grid shape on the insulative board, the method comprising: a step for forming an electroconductive film on the insulative board; a step for forming a pattern on the electroconductive film so as to form the electroconductive pads, a lead wire connected to at least one of the electroconductive pads, and inter-pad wiring for electrically connecting each of the electroconductive pads not connected to the lead wire to any of the electroconductive pads connected to the lead wire, the inter-pad wiring being disposed between mutually adjacent electroconductive pads; a step for plating each of the electroconductive pads by immersing the insulative board in a plating bath and energizing each of the electroconductive pads through the lead wire; and a step for removing the inter-pad wiring.
摘要:
In a semiconductor device having a semiconductor chip mounted on a printed circuit board, the semiconductor chip has a plurality of electrodes and the printed circuit board has a plurality of conductive patterns. Metallic plated layers are formed on the electrodes of the semiconductor chip. The metallic plated layers on the electrodes of the semiconductor chip are electrically connected with the conductive patterns of the printed circuit board by metallic wires.
摘要:
A semiconductor device according to the invention of the present application comprises a semiconductor substrate including a first surface and a second surface corresponding to a back surface with respect to the first surface and having first through electrodes which extend through the first surface and the second surface, semiconductor chips which are mounted over the first surface of the semiconductor substrate and each of which is constituted of a material of the same kind as the semiconductor substrate and has a circuit element electrically connected to the first through electrodes, stress relaxing sections which are provided with first conductors formed over the second surface of the semiconductor substrate and electrically connected to the first through electrodes of the semiconductor substrate and having flexibility, and external connecting terminals provided over the stress relaxing sections and connected to the first conductors respectively.