Abstract:
A method is provided to enhance the connection reliability in three-dimensional mounting while considering the warping of packages. Opening diameters of the openings provided corresponding to protruding electrodes, respectively, are set so as to gradually decrease from the central portion toward the outer peripheral portion of a carrier substrate, and the opening diameters of openings provided corresponding to the protruding electrodes, respectively, are set so as to gradually decrease from the central portion toward the outer peripheral portion of another carrier substrate.
Abstract:
A package substrate has a power supply path different from a signal supply path to a semiconductor element. A semiconductor element is mounted on a first surface of the package substrate. A second surface opposite to the first surface is provided with external connection terminals. A power supply layer is formed inside the package substrate. The package substrate has electrode terminals provided in a part other than the second surface. The electrode terminals are connected to the power supply layer.
Abstract:
A PCB having a card slot receiving a card provided with signal input/output pins and a circuit element to provide extended capability is inserted, and having data transmission pins, a power pin and a ground pin in correspondence to the signal input/output pins, comprises an electronic device internally provided for impedance matching with the card, and having a first end connected to one of the data transmission pins and a second end connected to one of the power pin and the ground pin. With this configuration, a card slot internally comprises an electronic device for impedance matching, so that a space of the PCB can be efficiently utilized.
Abstract:
An electronic component mounted structure has: a circuit board; two semiconductor elements that are mounted on the circuit board; and an AC coupling capacitor that is operable to cut off signals with a predetermined frequency or less and is provided between the two semiconductor elements. The AC coupling capacitor is mounted on the circuit board such that a part or a whole of the AC coupling capacitor is away from the surface of the circuit board.
Abstract:
A stacked chip assembly includes individual units having chips mounted on dielectric layers and traces on the dielectric layers interconnecting the contacts of the chips with terminals disposed in peripheral regions of the dielectric layers. At least some of the traces are multi-branched traces which connect chip select contacts to chip select terminals. The units are stacked one above the other with corresponding terminals of the different units being connected to one another by solder balls or other conductive elements so as to form vertical buses. Prior to stacking, the multi-branched traces of the individual units are selectively connected, as by forming solder bridges, so as to leave chip select contacts of chips in different units connected to different chip select terminals and thereby connect these chips to different vertical buses. The individual units desirably are thin and directly abut one another so as to provide a low-height assembly with good heat transfer from chips within the stack.
Abstract:
Apparatus and methods of electrically connecting integrated circuits and transducers are described. In particular, a transducer includes a base mountable on a substrate (e.g., a printed circuit board), and an input/output (I/O) lead configured to contact an I/O lead of an integrated circuit mounted on the substrate. The transducer may be mounted on the substrate to contact the transducer I/O lead to the integrated circuit I/O lead. The transducer I/O lead is configured to electrically connect to the integrated circuit I/O lead independently of any electrically conductive path of the substrate. The direct electrical connection between the transducer and the integrated circuit provides a high-speed communication channel that avoids the parasitic and high-inductance limitations generally associated with conventional metallic printed circuit board traces. At the same time, the transducer is compatible with existing printed circuit board technologies and integrate circuit technologies and, therefore, may be readily integrated into existing computer systems.
Abstract:
A capacitor-built-in-type printed wiring substrate which can reliably eliminate noise and attain extremely low resistance and low inductance in connections between an IC chip and the capacitor, and a printed wiring substrate and capacitor for use in the same. A capacitor-built-in-type printed wiring substrate 100 on which an IC chip is mounted includes a capacitor-built-in-type printed wiring substrate 110 and an IC chip 101 mounted on the capacitor-built-in-type printed wiring substrate 110. A printed wiring substrate 120 includes a number of connection-to-IC substrate bumps 152 and a closed-bottomed capacitor accommodation cavity 121 formed therein. A capacitor 130 is disposed in the cavity 121 and includes a pair of electrode groups 133E and 133F and a number of connection-to-IC capacitor bumps 131 connected to either one of the paired electrode groups 133E and 133F. The connection-to-IC capacitor bumps 131 are flip-chip-bonded to corresponding connection-to-capacitor bumps 103 on the IC chip 101. The connection-to-IC substrate bumps 152 are flip-chip-bonded to corresponding connection-to-substrate bumps 104 on the IC chip 101.
Abstract:
A multilayer capacitor having a low parasitic inductance includes a first electrode, a second electrode, a dielectric, a first contact, and a second contact. The first electrode is substantially rectangular and it includes a first contact finger. The dielectric has a first surface and a second surface, wherein the first and second surfaces are situated opposite with each other. The first surface of the dielectric is coupled with the first electrode. The second electrode is substantially rectangular and it includes a first contact finger. The second electrode is coupled to the second surface of the dielectric. The first contact is coupled to the first contact finger of the first electrode. The second contact is coupled to the first contact finger of the second electrode. The second contact is situated at a minimal space from the first contact to reduce the parasitic inductance.
Abstract:
A packaging method, a packaging structure and a package is substrate capable of restraining a warp of a thin film substrate, increasing a product yield, and building up a sufficient cooling capacity in the case of mounting an LSI having a high exothermic quantity. A package substrate 1 of the invention is such that an opening 11 is formed in a first substrate 12, a thin film substrate (a second substrate) 13 is laminated on the first substrate 12, the opening 11 is covered with the thin film substrate 13. Next, a capacitor (a first electronic part) 14 is inserted into the opening 11 and bonded to the thin film substrate, a resin 15 fills an interior of the opening 11 to a fixed or larger thickness and is hardened, the thin film substrate 13 and the capacitor 14 are thereby sustained by the resin 15, an LSI 16 (a second electronic part) that should be connected to the capacitor 14 is bonded to a surface, on an exposed side, of the thin film substrate 13, and the capacitor 14 is connected to the LSI 16.
Abstract:
An apparatus for receiving a microchip and having a conductor buses therein. A top surface of the apparatus receives the microchip while the bottom surface is to mount to a circuit board. A plurality of pin receptacles pass through the top surface to receive a corresponding plurality of microchip pins of the microchip. The conductor bus resides at least in part between the top surface and the bottom surface and is electrically coupled to a first plurality of the plurality of the pin receptacles.