Abstract:
A multi-layer printed circuit board includes an embedded capacitor substrate composed of a power source conductor layer and a ground conductor layer, the layers being disposed close to each other. The power source conductor layer has a first power source plane to supply power to a circuit element, and a second power source plane that is separated from the first power source plane by a gap and functions as a main power source. The first power source plane is partially connected to the second power source plane by a connecting line. The ground conductor layer has an opening at a position overlapping with a projected image when the connecting line is projected on the ground conductor layer. This structure suppresses propagation of the noise caused at the circuit element and reduces radiation noise in the printed circuit board.
Abstract:
Multi-layer printed circuit boards (PCB) with power plane islands to isolate noise coupling are provided. In addition, methods and computer program products for manufacturing multi-layer PCBs with power plane islands to isolate noise coupling are provided. Embodiments include a PCB comprising a first power plane coupled to a power supply, the first power plane within a layer of the PCB; a second power plane and a third power plane, the second power plane and the third power plane within another layer of the PCB, the second power plane and the third power plane separated from each other within the other layer of the PCB; and a via bridge structure connecting the first power plane to both the second power plane and the third power plane.
Abstract:
A wiring board includes a core substrate including an insulation base member; linear conductors configured to pierce from a first surface of the insulation base member to a second surface of the insulation base member; a ground wiring group including a first ground wiring formed on the first surface of the core substrate, and a belt-shaped second ground wiring formed on the second surface of the core substrate and electrically connected to the first ground wiring by way of a part of the linear conductors; and an electric power supply wiring group including a first electric power supply wiring formed on the first surface, and a second electric power supply wiring formed on the second surface and electrically connected to the first electric power supply wiring by way of a part of the plural linear conductors.
Abstract:
A mechanism for continuously referencing signals over multiple layers in laminate packages provides a continuous path for signals from one layer to another while using the ideal voltage reference for all areas of the package and still avoiding discontinuities in the voltage reference. A reference plane adjustment engine analyzes a package design and identifies an ideal top plane for all areas of the package, including areas under particular chip die(s) and areas that are not under a chip die. The reference plane adjustment engine then modifies the package design to reposition ground planes, source voltage planes, signal planes, and vias between layers to maintain a continuous voltage reference regardless of the top layer. The reference plane adjustment engine provides the resulting mixed voltage plane package design to a design analysis engine. A package fabrication system fabricates the package.
Abstract:
Disclosed herein are a printed circuit board and a method of manufacturing the same. The printed circuit board includes a metal layer divided into a plurality of regions; a build-up layer formed on at least one surface of the metal layer; and a penetrating part penetrating through the metal layer including the build-up layer and electrically separating each of the plurality of regions of the metal layer. The metal layer is configured of the plurality of regions, the ground layers and the power layers that have different functions, thereby making it possible to be thin, and the plurality of regions of the metal layer are connected through a bridge and are then penetrated through by the penetrating part, thereby making it possible to easily manufacture the printed circuit board.
Abstract:
A DC bus for use in a power module has a positive DC conductor bus plate parallel with a negative DC conductor bus plate. One or more positive leads are connected to the positive bus and are connectable to a positive terminal of a power source. One or more negative leads are connected to the negative bus and are connectable to a negative terminal of a power source. The DC bus has one or more positive connections fastenable from the positive bus to the high side of a power module. The DC bus also has one or more negative connections fastenable from the negative bus to the low side of the power module. The positive bus and negative bus permit counter-flow of currents, thereby canceling magnetic fields and their associated inductances, and the positive and negative bus are connectable to the center portion of a power module.
Abstract:
A mechanism for continuously referencing signals over multiple layers in laminate packages provides a continuous path for signals from one layer to another while using the ideal voltage reference for all areas of the package and still avoiding discontinuities in the voltage reference. A reference plane adjustment engine analyzes a package design and identifies an ideal top plane for all areas of the package, including areas under particular chip die(s) and areas that are not under a chip die. The reference plane adjustment engine then modifies the package design to reposition ground planes, source voltage planes, signal planes, and vias between layers to maintain a continuous voltage reference regardless of the top layer. The reference plane adjustment engine provides the resulting mixed voltage plane package design to a design analysis engine. A package fabrication system fabricates the package.
Abstract:
A method for electronic circuit power plane design includes analyzing direct current (DC) properties of a power plane of an electronic circuit. The method includes analyzing power net inductance (PNI) properties of the power plane and identifying victim areas of the power plane having predetermined current density properties based on the DC properties and the PNI properties of the power plane. The method further includes replacing the identified victim areas with ground (GND) shapes to form a modified power plane.
Abstract:
A DC bus for use in a power module has a positive DC conductor bus plate parallel with a negative DC conductor bus plate. One or more positive leads are connected to the positive bus and are connectable to a positive terminal of a power source. One or more negative leads are connected to the negative bus and are connectable to a negative terminal of a power source. The DC bus has one or more positive connections fastenable from the positive bus to the high side of a power module. The DC bus also has one or more negative connections fastenable from the negative bus to the low side of the power module. The positive bus and negative bus permit counter-flow of currents, thereby canceling magnetic fields and their associated inductances, and the positive and negative bus are connectable to the center portion of a power module.
Abstract:
According to some embodiments, a device includes a first conductive plane electrically coupled to a first terminal associated with a first polarity and a second terminal associated with the first polarity, a second conductive plane electrically coupled to a third terminal associated with a second polarity, a dielectric disposed between the first conductive plane and the second conductive plane, a third conductive plane electrically coupled to the second terminal and not electrically coupled to the first terminal, and a second dielectric disposed between the second conductive plane and the third conductive plane. A first capacitance is present between the first terminal and the third terminal, a second capacitance is present between the second terminal and the third terminal, and the first capacitance and the second capacitance may be substantially dissimilar.