Abstract:
비용 저감이 가능하며, 수율 향상을 달성할 수 있는 부품 내장 모듈을 제공한다. 부품 내장 모듈(A)은 상면에 제1의 배선(2)을 갖는 모듈 기판(1)과, 모듈 기판의 제1의 배선상에 실장된 제1의 회로부품(7)과, 제1의 회로부품이 실장된 부위 이외의 모듈 기판의 제1의 배선상에 실장되며, 모듈 기판보다 소면적의 서브모듈 기판(10)과, 서브모듈 기판의 상면의 제2의 배선(11)에 실장된 제2의 회로부품(15)과, 모듈 기판의 상면 전면에, 제1의 회로부품, 제2의 회로부품 및 서브모듈 기판을 둘러싸도록 형성된 절연 수지층(20)을 구비한다. 서브모듈 기판(10)으로서 모듈 기판(1)보다 배선 정밀도가 높은 기판을 사용함으로써, 서브모듈 기판상에 집적회로소자(15a)를 탑재할 수 있으며, 신뢰성이 높고 저렴한 부품 내장 모듈을 얻는다. 부품 내장 모듈, 모듈 기판, 서브모듈 기판, 절연 수지층, 배선, 집적회로소자
Abstract:
Provided are a multilayer printed-circuit board, which can mount parts easily, which is excellent in working efficiency or which is easily reworkable, and a mounting method therefor. The method mounts the parts of the multilayer printed-circuit board, which is formed with a plurality of solder bumps for mounting the electronic parts on the surface side and/or the back side. The solder bumps are individually formed of any of a first solder, a second solder and a third solder, and the electronic parts and so on are soldered sequentially from the higher melting point, when the first solder, the second solder and the third solder have melting points in the order of a higher temperature of the first solder, the second solder and the third solder. At this time, it is preferred that the solder bump having the larger volume is soldered the earlier.
Abstract:
An Advanced Mezzainine Card An Advanced Mezzanine Card (AMC) adapter may be used to connect a non-AMC mezzanine cared to an AMC carrier. The AMC adapter may include a card edge connector configured to be connected to an AMC connector on the AMC carrier and one or more mezzanine connectors configured to be connected to the non-MC mezzanine card. The AMC adapter may also include a bridge to convert between communication protocols used by the non-AMC mezzanine card and the AMC carrier. Of course, many alternatives, variations, and modification are possible without departing from this embodiment.
Abstract:
A power module includes a printed circuit board (PCB), a magnetic element, primary and secondary winding circuits and a regulator. The magnetic element is disposed on the PCB and has first to fourth sides. The second side is opposite to the first side, the fourth side is opposite to the third side. The primary winding circuit is disposed on the PCB and positioned in a vicinity of the first or second side. The secondary winding circuit is disposed on the first PCB and positioned in a vicinity of the third or fourth side. The regulator includes a switch disposed on the PCB, and coupled to the primary winding circuit. The at least one switch, the primary winding circuit, and the magnetic element are arranged in a first direction in order. A power device is also disclosed herein.
Abstract:
Wireless interconnects are shown on flexible cables for communication between computing platforms. One example has an integrated circuit chip, a package substrate to carry the integrated circuit chip, the package substrate having conductive connectors to connect the integrated circuit chip to external components, a cable on the package substrate coupled to the integrated circuit chip at one end, a radio chip on the cable coupled to the cable at the other end, the radio chip to modulate data over a carrier and to transmit the modulated data, and a waveguide transition coupled to a dielectric waveguide to receive the transmitted modulated data from the radio and to couple it into the waveguide, the waveguide to carry the modulated data to an external component.
Abstract:
A method and circuit board arrangement for an intrinsically safe portable device includes two or more circuit boards having a frame structure that forms a contiguous boundary around a space between the circuit boards. In the space there are circuit components mounted on both circuit boards, and a connector that connect the two circuit boards. An encapsulant material fills the space bounded by the frame structure between the circuit boards to exclude airborne material from coming into contact with the encapsulated circuit components.
Abstract:
A wiring substrate includes a first wiring structure, a second wiring structure stacked on an upper surface of the first wiring structure, and an outermost insulating layer stacked on a lower surface of the first wiring structure. The outermost insulating layer covers a part of a bottom wiring layer of the wiring layers forming the first wiring structure. The second wiring structure has a wiring density higher than that of the first wiring structure. A volume ratio V1/V2 is from 0.8 to 1.5, where V1 represents the volume of the wiring layers forming the entire second wiring structure, and V2 represents the volume of the bottom wiring layer in the first wiring structure.
Abstract:
A wiring substrate includes a first wiring structure, a second wiring structure stacked on an upper surface of the first wiring structure, and an outermost insulating layer stacked on a lower surface of the first wiring structure. The outermost insulating layer covers a part of a bottom wiring layer of the wiring layers forming the first wiring structure. The second wiring structure has a wiring density higher than that of the first wiring structure. A volume ratio V1/V2 is from 0.8 to 1.5, where V1 represents the volume of the wiring layers forming the entire second wiring structure, and V2 represents the volume of the bottom wiring layer in the first wiring structure.
Abstract:
An integrated circuit in a multi-chip package is provided. The integrated circuit may include adjustable interface circuitry configured to interface with other off-chip components. In particular, the adjustable interface circuitry may include a microbump input-output buffer operable to drive signals off of the integrated circuit and operable to receive signals from other integrated circuits in the multi-chip package via a microbump. The microbump input-output buffer may include output buffers and input buffers. The output buffers may have programmable drive strengths and may each be selectively switched in and out of use depending on the desired application. Each output buffer may include a level shifter, a buffer circuit, and multiple inverter-like circuits each of which can be turned on or off to adjust the drive strength of that output buffer.
Abstract:
In a display device (100), a row of protruding electrodes (115) and a row of protruding electrodes (116) are formed on the connecting surface of a terminal section (112), the row of the protruding electrodes (116) is disposed between the row of the protruding electrodes (115) and a display section (111), one end of a flexible printed board (150) is connected to the row of the protruding electrodes (115), one end of a flexible printed board (160) is connected to the row of the protruding electrodes (116), the row of the protruding electrodes (115) is adjacent to the row of the protruding electrodes (116), and the one end of the flexible printed board (150) and the one end of the flexible printed board (160) are opposed to each other.