Abstract:
An apparatus that includes a first conducting strip having a narrowed width where the first conducting strip also acts as a first electrode for a first tapping capacitance. The first tapping capacitance has a second electrode that is: 1) parallel to the first conducting strip; and 2) closer to the first conducting strip than a second conducting strip. The second conducting strip is parallel to the first conducting strip and has a narrowed width where the second conducting strip also acts as a first electrode for a second tapping capacitance. The second tapping capacitance has a second electrode that is: 1) parallel to the second conducting strip; and 2) closer to the second conducting strip than the first conducting strip.
Abstract:
A high frequency module incorporates a layered substrate. The layered substrate has a bottom surface and a top surface. Terminals are disposed on the bottom surface. SAW filters and inductors are mounted on the top surface. The layered substrate incorporates: a first conductor layer connecting the SAW filters to the inductors; a second conductor layer connected to the terminals and disposed at a location closer to the bottom surface than the first conductor layer; and a plurality of parallel signal paths each of which is formed using at least one through hole provided inside the layered substrate and each of which connects the first and second conductor layers to each other.
Abstract:
A technique for improving power/ground flooding is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for improving power and ground flooding in a multilayer circuit board, the multilayer circuit board having a plurality of signal layers. The method may comprise forming a plurality of electrically conductive vias, wherein each of the plurality of electrically conductive vias extends through one or more of the plurality of signal layers. The method may also comprise routing signals associated with the plurality of electrically conductive vias, thereby creating at least one power/ground flooding channel. The method may additionally comprise forming at least one power/ground connection within the at least one power/ground flooding channel.
Abstract:
In one embodiment, a laminated printed circuit board translator is provided. In some embodiments, the translator includes a receiving board adapted to receive a pin, the receiving board includes a plated via extending through the receiving board and has a hole for receiving a pin. An interface board laminated with the receiving board has a controlled depth via extending through it to contact a conductive trace. The conductive trace extends between the receiving board and the interface board to connect the plated via of the receiving board with the controlled depth via of the interface board. The controlled depth via is configured so that it is capable of being plated through a single sided drilled opening in the interface board. Some embodiments have a pad on the interface board connected to the controlled depth via.
Abstract:
A system for communicating with an electronic device within a sealed vessel comprises a generally enclosed housing having an opening. A printed circuit board is provided for covering the housing opening to create a fully enclosed sealed vessel. An electronic device is located within the interior of the sealed vessel and an external device is located outside the sealed vessel. At least one conductive path comprised of at least one conductive trace and at least one conductive via extends through the printed circuit board from the first surface located on the outside of the sealed vessel to a second surface located on the inside of the sealed vessel. The conductive path has a first end on the first surface which is connected to the external device and a second end on the second surface which is connected to the electronic device. In this manner, a communication path is established between the external device and the electronic device within the interior of the sealed vessel utilizing the at least one conductive path.
Abstract:
A technique for accommodating electronic components on a multilayer signal routing device is disclosed. In one particular exemplary embodiment, the technique may be realized as a multilayer signal routing device comprising a primary surface and a secondary surface. The primary surface may have a plurality of electrically conductive pads formed thereon, wherein a group of the plurality of electrically conductive pads is in respective electrical connection with a group of electrically conductive micro-vias formed in the multilayer signal routing device. The secondary surface may have a channel formed thereon coinciding with the location of the group of electrically conductive micro-vias, wherein the channel has a channel area on the secondary surface for accommodating an electronic component mounted on the secondary surface.
Abstract:
Provided is a BGA-type multilayer circuit wiring board which is mounted on a printed wiring board directly via a solder ball with the electrode pad for solder ball connection formed thereon and in which the electric connection reliability of the filled via connected to the electrode pad for solder ball connection is not worsened. A wiring layer is formed on both surfaces of an insulating substrate; an electrode pad for solder bump for mounting a semiconductor chip thereon is formed on one surface of the substrate via an insulating layer; and an electrode pad for solder ball for connecting the structure to a printed wiring board is formed on the other surface thereof. The electrode pad for solder ball is electrically connected to the filled via; and the filled via is disposed in the intermediate position between the neighboring electrode pads for solder ball connection.
Abstract:
In a multi-layer printed wiring board 100 comprising single side circuit boards A, B and for accommodating an IC chip 70, BGAs 56 are disposed on its front and rear faces, so that with an IC module 120 mounted through the BGA 56 on the front face, this board can be connected to a printed wiring board through the BGA 56 on the rear face. Thus, freedom in the configuration of the IC module mounted increases so that various kinds of the IC modules can be loaded.
Abstract:
A flexible printed circuit board (FPCB) which prevents a short circuit due to a crack in a bending portion is provided. The FPCB includes an end portion, a bending portion extended from the end portion, and a circuit portion extended from the bending portion. The improved FPCB includes a base film which is flexible and comprises a first via-hole formed adjacent to the end portion and the bending portion and a second via-hole formed adjacent to the bending portion and the circuit portion, a first conductive layer formed on an outer surface of at least the end portion and the bending portion, a cover layer formed on the first conductive layer, a second conductive layer which is formed on an inner surface of the end portion and is electrically connected to the first conductive layer through the first via-hole, and a third conductive layer which is formed on an inner surface of the extension circuit portion and is electrically connected to the first conductive layer through the second via-hole.
Abstract:
A circuit board includes a first group of layers located close to a top side of the circuit board, and a second group of layers located close to an underside of the circuit board. Signals which are fed to input and output contact terminals on the top side of the circuit board are passed along at least one of the layers of the group. Signals which are fed to input and output contact terminals on the underside of the circuit board are passed along at least one of the layers of the second group. The contact-making holes for connecting the input and output contact terminals to the layers of the first and second groups are preferably formed as blind contact-making holes.