Abstract: A sheet used for coating an optical semiconductor element is used for directly or indirectly covering an optical semiconductor element, and includes a white layer containing white particles; and a light diffusion layer containing light-diffusing particles, in this order in a thickness direction.

Abstract: A sheet used for coating an optical semiconductor element is used for directly or indirectly covering an optical semiconductor element, and includes a white layer containing white particles; and a light diffusion layer containing light-diffusing particles, in this order in a thickness direction.

Abstract: A method for producing an LED device 5 producing an LED device 5 by encapsulating an LED 4 by an encapsulating sheet 1 includes a sheet producing step of producing the encapsulating sheet 1 and an encapsulating step of encapsulating the LED 4 by the encapsulating sheet 1. Time T from producing the encapsulating sheet 1 in the sheet producing step to encapsulating the LED 4 by the encapsulating sheet 1 in the encapsulating step is 24 hours or less.

Abstract: A light-emitting device assembly includes a plurality of light-emitting devices, the plurality of light-emitting devices being provided continuously, the plurality of light-emitting devices each including a substrate, an optical semiconductor element mounted on the surface of the substrate, an encapsulating layer formed on the substrate surface to encapsulate the optical semiconductor element, and an electrode formed on the substrate surface so as to be electrically connected to the optical semiconductor element. The substrate has a fragile region formed to partition off the light-emitting devices that are disposed next to each other.

Abstract: A method for producing an optical semiconductor device including a varnish production step of producing a varnish containing particles and a curable resin, a cover layer production step of producing an A-stage cover layer from the varnish, and a covering step of covering the optical semiconductor element with the A-stage covering layer.

Abstract: The adhering device includes a first mold member having a first cavity in which an adhering preform, which includes an electronic component and a resin sheet disposed to face the electronic component in spaced-apart relation, is accomodated; an elastic member disposed to face the resin sheet so that a first enclosed space can be formed with the first cavity; and a differential pressure generation means connected to the first mold member for allowing the air pressure of the first enclosed space to be lower than the air pressure of a space opposite to the first enclosed space relative to the elastic member. The adhering device is configured such that by operating the differential pressure generation means, the elastic member moves towards the first cavity side, the adhering perform is pressed in the direction facing the electronic component and the resin sheet, thereby adhering the resin sheet to the electronic component.

Abstract: A method for producing an encapsulating layer-covered semiconductor element includes a disposing step of disposing a semiconductor element on a support, an encapsulating step of embedding and encapsulating the semiconductor element by an encapsulating layer in an encapsulating sheet including a peeling layer and the encapsulating layer laminated below the peeling layer and made from a thermosetting resin before complete curing, and a heating step of heating and curing the encapsulating layer after the encapsulating step. The heating step includes a first heating step in which the encapsulating sheet is heated at a first temperature, while being mechanically pressurized toward the support and a second heating step in which the encapsulating sheet is heated at a second temperature that is higher than the first temperature after the first heating step.

Abstract: A method for producing an encapsulating layer-covered semiconductor element includes a disposing step of disposing a semiconductor element on a support, an encapsulating step of embedding and encapsulating the semiconductor element by an encapsulating layer in an encapsulating sheet including a peeling layer and the encapsulating layer laminated below the peeling layer and made from a thermosetting resin before complete curing, and a heating step of heating and curing the encapsulating layer after the encapsulating step. The heating step includes a first heating step in which the encapsulating sheet is heated at a first temperature, while being mechanically pressurized toward the support and a second heating step in which the encapsulating sheet is heated at a second temperature that is higher than the first temperature after the first heating step.

Abstract: A method for producing an encapsulating layer-covered semiconductor element includes a disposing step of disposing a semiconductor element on a support, an encapsulating step of embedding and encapsulating the semiconductor element by an encapsulating layer in an encapsulating sheet including a peeling layer and the encapsulating layer laminated below the peeling layer and made from a thermosetting resin before complete curing, and a heating step of heating and curing the encapsulating layer after the encapsulating step. The heating step includes a first heating step in which the encapsulating sheet is heated under a normal pressure at a first temperature, a peeling step in which the peeling layer is peeled from the encapsulating layer after the first heating step, and a second heating step in which the encapsulating layer is heated at a second temperature that is higher than the first temperature after the peeling step.

Abstract: A method for producing a semiconductor device includes a preparing step of preparing a board formed with a concave portion, a terminal disposed in or around the concave portion, and a semiconductor element disposed in the concave portion; a wire-bonding step of connecting the terminal to the semiconductor element with a wire; a pressure-welding step of pressure-welding an encapsulating sheet to the board so as to be in close contact with the upper surface of a portion around the concave portion and to be separated from the upper surface of the concave portion under a reduced pressure atmosphere; and an atmosphere releasing step of releasing the board and the encapsulating sheet under an atmospheric pressure atmosphere.

Abstract: An encapsulating sheet-covered semiconductor element includes a semiconductor element having one surface in contact with a board and the other surface disposed at the other side of the one surface and an encapsulating sheet covering at least the other surface of the semiconductor element. The encapsulating sheet includes an exposed surface that is, when projected from one side toward the other side, not included in the one surface of the semiconductor element and exposed from the one surface and the exposed surface has the other side portion that is positioned toward the other side with respect to the one surface of the semiconductor element.

Abstract: A silicone resin composition contains a silicon-containing component including a silicon atom to which a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic hydrocarbon group is bonded and a silicon atom to which an alkenyl group is bonded. The number of moles of alkenyl group per 1 g of the silicon-containing component is 200 to 2000 ?mol/g.

Abstract: A light-emitting device assembly includes a plurality of light-emitting devices, the plurality of light-emitting devices being provided continuously, the plurality of light-emitting devices each including a substrate, an optical semiconductor element mounted on the surface of the substrate, an encapsulating layer formed on the substrate surface to encapsulate the optical semiconductor element, and an electrode formed on the substrate surface so as to be electrically connected to the optical semiconductor element. The substrate has a fragile region formed to partition off the light-emitting devices that are disposed next to each other.

Abstract: A light-emitting device assembly includes a substrate, an optical semiconductor element mounted on the surface of the substrate, an encapsulating layer formed on the substrate surface to encapsulate the optical semiconductor element, and an electrode formed on the substrate surface to be electrically connected to the optical semiconductor element. On the substrate, only an encapsulating region and an electrode region are formed, the encapsulating region including the optical semiconductor element and being defined by the encapsulating layer, and the electrode region being defined by the electrode exposed from the encapsulating layer.

Abstract: An encapsulating sheet-covered semiconductor element includes a semiconductor element having one surface in contact with a board and the other surface disposed at the other side of the one surface and an encapsulating sheet covering at least the other surface of the semiconductor element. The encapsulating sheet includes an exposed surface that is, when projected from one side toward the other side, not included in the one surface of the semiconductor element and exposed from the one surface and the exposed surface has the other side portion that is positioned toward the other side with respect to the one surface of the semiconductor element.

Abstract: A method for producing an encapsulating sheet-covered semiconductor element includes a semiconductor element disposing step of disposing a plurality of semiconductor elements at spaced intervals to each other and an encapsulating sheet disposing step of disposing an encapsulating sheet so as to cover a plurality of the semiconductor elements and to form a space over the semiconductor elements adjacent to each other.

Abstract: A method for producing a semiconductor device includes a preparing step of preparing a board formed with a concave portion, a terminal disposed in or around the concave portion, and a semiconductor element disposed in the concave portion; a wire-bonding step of connecting the terminal to the semiconductor element with a wire; a pressure-welding step of pressure-welding an encapsulating sheet to the board so as to be in close contact with the upper surface of a portion around the concave portion and to be separated from the upper surface of the concave portion under a reduced pressure atmosphere; and an atmosphere releasing step of releasing the board and the encapsulating sheet under an atmospheric pressure atmosphere.

Abstract: A method for producing a semiconductor device includes a preparing step of preparing a board formed with a concave portion, a terminal disposed in or around the concave portion, and a semiconductor element disposed in the concave portion; a wire-bonding step of connecting the terminal to the semiconductor element with a wire; a pressure-welding step of pressure-welding an encapsulating sheet to the board so as to be in close contact with the upper surface of a portion around the concave portion and to be separated from the upper surface of the concave portion under a reduced pressure atmosphere; and an atmosphere releasing step of releasing the board and the encapsulating sheet under an atmospheric pressure atmosphere.

Abstract: A silicone resin composition contains a first organopolysiloxane having, in one molecule, both at least two ethylenically unsaturated hydrocarbon groups and at least two hydrosilyl groups; a second organopolysiloxane having, in one molecule, at least two hydrosilyl groups without containing an ethylenically unsaturated hydrocarbon group; a hydrosilylation catalyst; and a hydrosilylation inhibitor.

Abstract: A method for producing a silicone resin sheet includes the steps of forming a first coating layer by applying a first silicone resin composition which contains a first organopolysiloxane and a second organopolysiloxane; forming a precursor layer from the first coating layer by reacting the first organopolysiloxane with the second organopolysiloxane so as to have a conversion ratio of 5 to 40%; and forming a second layer on at least one surface in a thickness direction of the precursor layer by applying a second silicone resin composition which contains a third organopolysiloxane, a fourth organopolysiloxane, a hydrosilylation catalyst, and a curing retardant containing tetraalkylammonium hydroxide.