Abstract:
The present invention provides thin-laminate panels (i.e., thin-laminate panels (2) having dielectric layers (8) about 0.006 inches (0.15 mm) or less and conductive layers (6) on either side of the dielectric layer (8)), wherein the edges of the dielectric layers of the panels are free of conductive material, such as copper. The thin-laminate panel is designed to provide necessary capacitance for all or a substantial number of the integrated circuits to be formed thereon. The thin-laminate panels of the present invention may be tested for manufacturing defects, such as short circuits, before further processing of the panels to produce PCBs. "Finishing" methods for shearing sheets of unfinished thin-laminate into the finished thin-laminate panels of the present invention in a manner that does not cause smearing of the conductive material onto the dielectric layer are also provided.
Abstract:
The invention relates to a method for producing interconnections with electrically conductive cross connections between the top and the bottom part of a substrate and interconnections having such cross connections. The substrate (S1) is given a slanted, roof-shaped or convex contour (K1) in the area of at least one front face and/or in the area of at least one inner wall of a recess. After metallizing the substrate (S1), printed-board conductor-shaped cross connections (Q) are produced in the area of the above-mentioned contours (K1) simultaneously with laser structuring of printed board conductors (L) on the top part (O) and the bottom part (U) of the substrate (S1).
Abstract:
Two electronic components having fine pitch arrays of terminals can be disconnectably interconnected by a multiple electrical connector that includes a pair of intermeshable members (22). Each of those members (22) has an electrically insulative body (23) with a structured surface including a plurality of tapered elements (26). Tapered sides of those elements (26) fit flush against each other when the two members (22) intermesh, and the members become strongly adhered to each other when the tangent of the half angle β of said tapered sides is no greater than the coefficient of friction of the material of the contacting surfaces. Each of the members (22) has a plurality of electrically conductive segments 15A, 15B in position to make good electrical contact when the members (22) intermesh.
Abstract:
(과제) 회로기판의일방주면에형성된수지층또는접속용부품의탈리를방지함으로써모듈특성을안정화시킬수 있는기술을제공한다. (해결수단) 접속용부품(4)의절연기판(41)의수지층(5)과의접촉면에수지층(5)의탈리방지용의결합구조(45)가형성되어있다. 따라서, 접속용부품(4)의측면을형성하는절연기판(41)의수지층(5)과의접촉면에형성된결합구조(45)에수지층(5)이결합함으로써, 회로기판(2)의일방주면(2a)에형성된수지층(5) 또는접속용부품(4)의탈리를방지할수 있다. 또한, 수지층(5)이접속용부품(4)의측면으로부터박리되는것을방지할수 있고, 수지층(5)과접속용부품(4)의접촉면에있어서의밀착성을향상시킬수 있으므로모듈특성을안정화시킬수 있다.
Abstract:
기판 본체의 표면에 있어서의 각 측면측을 따라서 설치한 금속화층의 표면에 피복한 도금막이나 납땜재가 손상되어 있지 않은 배선기판, 상기 배선기판을 복수개 동시에 제공하기 위한 다수개 취득 배선기판, 및 그 제조방법을 제공한다. 세라믹(S)으로 이루어지고, 평면시가 직사각형인 표면(3) 및 이면(4)과, 상기 표면(3)과 이면(4)의 사이에 위치하며, 또한 표면(3)측에 위치하는 홈 형성면(7) 및 이면 (4)측에 위치하는 파단면(6)으로 이루어지는 4변의 측면(5)을 구비한 기판 본체(2)와, 상기 기판 본체(2)의 표면(3)에 있어서의 4변의 측면(5)을 따라서 형성되고, 평면시가 직사각형 프레임 형상인 금속화층(11)을 포함하는 배선기판(1a)으로서, 상기 기판 본체(2)의 측면(5)마다에 있어서의 홈 형성면(7)과 금속화층(11)의 사이에, 기판 본체(2)의 세라믹(S)이 노출되어 이루어지는 수평면(13)이 위치하고 있는, 배선기판(1a).
Abstract:
Embodiments of the present invention provide a component-built-in wiring board capable of preventing a defect, such as a crack, resulting from stress concentration at a corner, when a component is accommodated in a housing portion of a core material with resin filler filled therebetween. The component-built-in wiring board can include a component accommodated in the housing portion of a core material, and a laminate portion in which insulating layers and conductor layers are laminated alternately on the core material. A gap between the housing portion of the core material and the component can be filled with a resin filler. In an inner circumferential portion of the housing portion of the core material a first straight chamfered portion is formed at each corner of a rectangle, and in an outer circumferential portion of the component a second straight chamfered portion is formed at each corner of a rectangle.
Abstract:
본 발명에 의한 인덕터는 고투자율 또는 고포화 특성의 자성체코어와, 자성체코어의 내부에 일체로 매설된 코일소자를 가진다. 자성체코어는 구 형상의 구조를 가지고, 코일소자는 코일도선이 구 형상으로 적층된 구 형상의 코일 구조를 가진다. 또한, 코일소자의 인출단부는 자성체코어의 외부로 연장되어 접속단자를 구성한다. 따라서, 구 형상의 자성체코어의 내부에 구 형상 코일 구조의 코일소자가 일체로 매설되므로, 누설자속이 대폭적으로 감소되고 자속교란도 방지된다. 또한, 실장 공간을 유효하게 이용할 수 있고, 복사 노이즈를 대폭적으로 저감시킨 인덕터를 실현할 수 있다.
Abstract:
PURPOSE: A semiconductor device and a fabricating method thereof are provided to determine a joining condition of external terminals and lands by enhancing visual identifiability of a joining agent deposited on the external terminals. CONSTITUTION: A semiconductor device includes a semiconductor element and a plurality of electrodes(104) electrically connected to the semiconductor element. The semiconductor element and the electrodes are sealed by a sealing agent(107) having an insulating property. The electrodes are exposed around a mounting surface that is joined via a joining agent(300) to an external mounting circuit board. The electrodes are shaped so that the joining agent is visually identifiable from side surfaces surrounding the mounting surface when the mounting surface is joined via the joining agent to the mounting circuit board.