Abstract: A semiconductor device includes: leads (5) in each of which a cutout (5a) is formed; a die pad (11); a power element (1) held on the die pad (11); and a package (6) made of a resin material, and configured to encapsulate inner end portions of the leads (5), and the die pad (11) including the power element (1). The cutout (5a) is located in a region of each of the leads (5) including a portion of the lead (5) located at a boundary between the lead (5) and the package (6), and is filled with a resin material.

Abstract: A conduction path includes a first conduction path forming plate (11) made of a first metal and having a through hole (13), and a second conduction path forming plate (15) made of a second metal and having a press-fit portion (17) press-fitted into the through hole. A wall surface of the through hole and a side surface of the press-fit portion forms an inclined bonding surface (18) inclined relative to a normal line of an overlap surface of the first conduction path forming plate and the second conduction path forming plate, and a bonding portion (25) formed by metal flow is formed in a region located in a periphery of the inclined bonding surface.

Abstract: A reliable power module is realized, in which a good performance of radiating heat of the power semiconductor element is secured and it is hard for the heat of a power semiconductor element to be conducted to a driving element. A power module includes a power semiconductor element mounted on a lead frame, and a driving element mounted on the lead frame, and a heat radiating plate radiating heat which is generated by the power semiconductor element, and a resin holding the power semiconductor element, the driving element, and the heat radiating plate, wherein the heat radiating plate has a portion disposed at a side opposite to a surface of the lead frame where the power semiconductor element is mounted, a portion disposed between the power semiconductor element and the driving element, and a portion disposed below the power semiconductor element, as the portions being in a body.

Abstract: A semiconductor device according to the present disclosure includes: a plate (13) having a through hole (15); a metal column (16) fixed to the through hole with an insulating member (17) interposed therebetween, and having a projection projecting from the upper surface of the plate; a semiconductor element (12) fixed to the projection; a lead frame (11) electrically connected to the semiconductor element; and a package (14) covering the semiconductor element, and also covering at least part of each of the plate, the metal column, and the lead frame. The lower surface (13b) of the plate is exposed from the package.

Abstract: The present invention includes a die pad; signal leads, ground connection leads connected to the die pad; a semiconductor chip including electrode pads for grounding; metal thin wires, and an encapsulating resin for encapsulating the die pad and the semiconductor chip and encapsulating the signal leads and the ground connection lead such that lower portions of the signal leads and the ground connection lead are exposed as external terminals. The ground connection lead is connected to the electrode pad for grounding, so that the resin-encapsulated semiconductor device is electrically stabilized. Furthermore, interference between high frequency signals passing through the signal leads can be suppressed by the die pad and the ground connection leads.

Abstract: A resin-sealed semiconductor device includes a power element (1), a control element (4), a first lead frame (3) having a first die pad (3A) which holds the power element (1), a second lead frame (5) having a second die pad (5A) which holds the control element (4), and a housing (6) made of a resin material and sealing the power element, the first die pad, the control element, and the second die pad. A lower surface of the second die pad is higher than an upper surface of the first element, and at least part of the first die pad and at least part of the second die pad overlap each other when viewed from the top. One of the first leads and one of the second leads are directly joined together by a joint portion (23) and electrically coupled together in the housing.

Abstract: A semiconductor device includes: a semiconductor substrate 1; a through electrode 7 extending through the semiconductor substrate 1; a diffusion layer 24 formed in a region of an upper portion of the semiconductor substrate 1 located on a side of the through electrode 7; and a diffusion layer 22 formed in an upper portion of the diffusion layer 24. A portion of the side surface of the through electrode 7 facing the diffusion layer 24 is curved, and a portion of the surface of the diffusion layer 24 facing the through electrode 7 is curved.

Abstract: A semiconductor device includes a first semiconductor chip 1, a second semiconductor chip 4, a first lead frame 3 including a first die pad 9 on which the first semiconductor chip 1 is mounted, and a second lead frame 5 including a second die pad 11 on which the second semiconductor chip 4 is mounted. A sealing structure 6 covers the first semiconductor chip 1 and the second semiconductor chip 4. A noise shield 7 is disposed between the first semiconductor chip 1 and the second semiconductor chip 4.

Abstract: According to the present invention, a protective seal S1 for protecting a transparent member 11 is composed of an organic base 16, adhesive layers 17, and a second adhesive layer 18 having low adhesion. The adhesive layers 17 are provided only on edges corresponding, on the organic base 16, to sides 11b of the transparent member and the second adhesive layer 18 is provided on a portion corresponding, on the organic base 16, to a surface 11a of the transparent member. The organic base 16 is fixed to the sides 11b and the surface 11a of the transparent member 11 with the adhesive layers 17 and 18.

Abstract: A microphone includes: a substrate including a tone hole and having a top surface on which a substrate electrode is provided; a converter provided on the top surface of the substrate and including a main body having a back space, a diaphragm provided at the bottom of the back space of the main body, and a converter electrode provided on a region of a bottom surface of the main body facing the substrate electrode; and a bump connecting the substrate electrode and the converter electrode to each other. The diaphragm vibrates in response to sound entering from the tone hole. The converter converts sound into a signal.

Abstract: A lead frame is buried in mold resin to form a mold structure. A wide blade is used to make an indentation having an alignment step in the mold structure. Then, a narrow blade is used to split the mold structure. At the outer perimeter portion of a base which is a separate part separated from the mold structure, an alignment step is formed. Due to the alignment step, an optical element, such as a mirror tube of an imaging optical system, or the like, is readily and quickly attached.

Abstract: One end of a flexible substrate is connected to a solid-state image sensing device and the other end constitutes an external connection part in which external lead-out electrodes are provided. A plurality of electronic components are mounted on a mounting part of the flexible substrate. The flexible substrate is bent at a first bent part thereof to make an acute angle with the solid-state image sensing device and also bent at a second bent part thereof to make an acute angle with the external connection part. The two acute angles are alternate angles and the solid-state image sensing device has a cross section of the letter Z.

Abstract: A semiconductor image sensor includes: a semiconductor imaging element including an imaging area, a peripheral circuit area, and an electrode area; cylindrical electrodes provided on electrode terminals so as to be electrically connected with an external device; and a transparent resin layer provided on the upper surface of the semiconductor imaging element. The upper surface of each cylindrical electrode and the upper surface of the transparent resin layer are substantially of the same height.

Abstract: An aluminum wire is bonded to a silicon electrode by a wedge tool pressing the aluminum wire against the silicon electrode. In this way, a firmly bonded structure is obtained by sequentially stacking aluminum, aluminum oxide, silicon oxide, and silicon.

Abstract: An optical semiconductor device includes: a package having a bottom portion and a sidewall portion; a semiconductor chip having an optical element formed on one surface thereof and having an opposite surface to the one surface fixed to the bottom portion of the package; a transparent member fixed to the semiconductor chip so as to cover the optical element; and a sealing resin filling a space between the package and the semiconductor chip. The sidewall portion has in an upper part thereof an overhang portion that projects toward inside of the package. The transparent member is exposed from a window portion formed by the overhang portion.

Abstract: A semiconductor device includes: a first lead having an element mounting portion; a second lead located in a same plane as the first lead, with a predetermined space left between the first lead and the second lead; a molding encapsulant made of a resin for fixing the leads; and a semiconductor element affixed to a top surface of the element mounting portion of the first lead. The molding encapsulant covers at least part of each of upper and lower surfaces of the leads. A resin injection hole mark, which is a mark of a hole through which the encapsulant has been injected, is left on the encapsulant, and part of the resin injection hole mark is located above the first lead or the second lead, and the remaining part of the resin injection hole mark is located above a space between the first lead and the second lead.

Abstract: An optical element mounted on a wiring board is sealed by a sealing resin except an optical function region. Wires connecting the wiring board with the optical element are also sealed by the sealing resin. The optical function region is exposed as a bottom surface of a recess whose side surface is formed by the sealing resin. A boundary portion between the side surface of the recess and a top surface portion and a boundary portion between the side surface and bottom surface of the recess have a rounded shape.

Abstract: An optical semiconductor device includes: a package having a bottom portion and a sidewall portion; a semiconductor chip having an optical element formed on one surface thereof and having an opposite surface to the one surface fixed to the bottom portion of the package; a transparent member fixed to the semiconductor chip so as to cover the optical element; and a sealing resin filling a space between the package and the semiconductor chip. The sidewall portion has in an upper part thereof an overhang portion that projects toward inside of the package. The transparent member is exposed from a window portion formed by the overhang portion.

Abstract: An optical device includes a substrate, an optical element, a translucent component, a plurality of first terminals and a sealant. The sealant is located lower than the top surface of the translucent component. The top surface of the translucent component is exposed out of the sealant, while the side surface of the translucent component is covered with the sealant.

Abstract: An optical device includes a light receiving element chip having: an active region formed on a principal plane of a substrate and made by arranging a plurality of light receiving pixels; a circuit region disposed around an outer circumference of the active region; a penetrating conductor provided to penetrate the substrate in the thickness direction of the substrate; and an external connection terminal provided on a back surface of the substrate facing the principal plane thereof and connected to the penetrating conductor. The optical device further includes a microlens, a planarization film, and a transparent protective film formed on the planarization film.