Abstract: A semiconductor device includes a semiconductor element; a plate member disposed opposite to an electronic-circuit forming portion of the semiconductor element; and an elastic body arranged in a compressed state between the semiconductor element and the plate member, wherein the elastic body includes at least one first protruding portion at one end in an extension direction of the elastic body, the first protruding portion being formed opposite to the electronic-circuit forming portion of the semiconductor element, and the semiconductor element and the plate member are fastened by an adhesive agent.

Abstract: A wiring board includes a main surface where an electronic component is mounted in a face-down manner so that a surface of the electronic component having plurality of external connecting terminals faces the main surface of the wiring board, the electronic component being fixed to the wiring board by an adhesive; an insulating layer formed on the main surface where the electronic component is mounted; an opening part formed in the insulating layer so that a plurality of adjacent wiring patterns are commonly and partially opened, the adjacent wiring patterns having electrodes where electrodes of the electronic component are connected; wherein an outer periphery of the opening part situated at a center side of the wiring board is formed in an oblique direction against extending directions of the wiring patters.

Abstract: A relay board provided in a semiconductor device, including an entire main surface that is made of a conductive material. The relay board may further include a substrate made of the same material as at least one semiconductor element provided in the semiconductor device. The main surface of the relay board may be formed at an upper part of the substrate.

Abstract: A semiconductor device includes a semiconductor element having a main surface where an outside connection terminal pad is provided. The semiconductor element is connected to a conductive layer on a supporting board via a plurality of convex-shaped outside connection terminals provided on the outside connection terminal pad and a connection member; and the connection member commonly covers the convex-shaped outside connection terminals.

Abstract: A high-contrast image recognition can be performed by recognizing an image of a recognition mark from a back surface of a wafer by a visible-light camera by irradiating a visible light from a circuit pattern surface of a silicon substrate. A thickness of the silicon substrate is set to 5 ?m to 50 ?m. A white or visible light having a wavelength equal to or less than 800 nm is irradiated onto the circuit-pattern forming surface of the substrate. A visible light that has transmitted through the silicon substrate is received by a visible-light camera on a side of a back surface of the silicon substrate. An image of a recognition mark formed on the circuit-pattern forming surface of the silicon substrate is recognized by the visible-light camera.

Abstract: A high-contrast image recognition can be performed by recognizing an image of a recognition mark from a back surface of a wafer by a visible-light camera by irradiating a visible light from a circuit pattern surface of a silicon substrate. A thickness of the silicon substrate is set to 5 &mgr;m to 50 &mgr;m. A white or visible light having a wavelength equal to or less than 800 nm is irradiated onto the circuit-pattern forming surface of the substrate. A visible light that has transmitted through the silicon substrate is received by a visible-light camera on a side of a back surface of the silicon substrate. An image of a recognition mark formed on the circuit-pattern forming surface of the silicon substrate is recognized by the visible-light camera.

Abstract: A method of forming a semiconductor device mounts solder balls on a resin board which has holes formed therethrough and conductive sheets formed therebeneath to cover bottom ends of the holes. The method includes the steps of applying solder paste on the holes, melting the solder paste by heat to make solder of the solder paste flow into the holes and establish contact with the conductive sheets, and connecting the solder balls to the solder filled in the holes.

Abstract: The semiconductor device includes a semiconductor chip, a tape for mounting the semiconductor chip thereto, an adhesive resin layer interposed between the semiconductor chip and the tape, and solder balls attached to the tape. The method of fabricating the semiconductor chip comprises the step of forming at least one hole in the tape, after fixing the semiconductor chip to the tape through the adhesive resin layer. Also, the TAB tape is made of polyimide having high water permeability.

Abstract: The semiconductor device includes a semiconductor chip, a tape for mounting the semiconductor chip thereto, an adhesive resin layer interposed between the semiconductor chip and the tape, and solder balls attached to the tape. The method of fabricating the semiconductor chip comprises the step of forming at least one hole in the tape, after fixing the semiconductor chip to the tape through the adhesive resin layer. Also, the TAB tape is made of polyimide having high water permeability.

Abstract: External connection electrodes can be positively mounted on a substrate when the pitch between the external connection electrodes is reduced and the diameter of each through hole formed in the substrate is reduced. A semiconductor chip is mounted on a first surface of a tape substrate. Electrode films are formed on the first surface of the tape substrate, each of the electrode films electrically connected to the semiconductor chip. External connection electrodes are provided on a second surface of the tape substrate, each of the external connection electrodes connected to a respective one of the electrode films via a through hole formed in the tape substrate. The external connection electrodes are formed on the electrode films by plating. A diameter S1 of a portion of each of the external connection electrodes protruding from the second surface of the tape substrate and a diameter S2 of the through hole satisfy a relationship S1≦S2.

Abstract: The semiconductor device includes a semiconductor chip, a tape for mounting the semiconductor chip thereto, an adhesive resin layer interposed between the semiconductor chip and the tape, and solder balls attached to the tape. The method of fabricating the semiconductor chip comprises the step of forming at least one hole in the tape, after fixing the semiconductor chip to the tape through the adhesive resin layer. Also, the TAB tape is made of polyimide having high water permeability.