Abstract:
An interposer 2 comprising a base 10 formed of a plurality of resin layers 26, 34, 42, 52, 56; a thin-film capacitor 12 buried in the base 10, including a lower electrode 20, a capacitor dielectric film 22 and an upper electrode 24; a first through-electrode 14b formed through the base 10 and electrically connected to the upper electrode 24 of the thin-film capacitor 12; and a second through-electrode 14a formed through the base 10 and electrically connected to the lower electrode 20 of the thin-film capacitor 12, further comprising: an interconnection 48 buried in the base 10 and electrically connected to the respective upper electrodes 24 of a plurality of the thin-film capacitors 12, a plurality of the first through-electrodes 14b being electrically connected to the upper electrodes 24 of said plurality of the thin-film capacitors 12 via the interconnection 48, and said plurality of the first through-electrodes 14b being electrically interconnected by the interconnections 48.
Abstract:
A method of forming a pre-patterned high-k dielectric film onto a support layer. The method includes: providing a support layer; providing a template defining template openings therein exhibiting a pattern that is a mirror image of a pattern of the pre-patterned high-k dielectric film; disposing the template onto the support layer; providing a high-k precursor material inside the template openings; curing the high-k precursor material inside the template openings to yield a cured film; and removing the template from the support layer after curing to leave the cured film on the conductive film.
Abstract:
A method of forming a capacitive substrate in which at least one capacitive dielectric layer of material is screen or ink jet printed onto a conductor and the substrate is thereafter processed further, including the addition of thru-holes to couple selected elements within the substrate to form at least two capacitors as internal elements of the substrate. Photoimageable material is used to facilitate positioning of the capacitive dielectric being printed. The capacitive substrate may be incorporated within a larger circuitized substrate, e.g., to form an electrical assembly. A method of making an information handling system including such substrates is also provided.
Abstract:
The present invention relates to an adjustable resistor embedded in a circuit board and a method of fabricating the same. The adjustable resistor comprises a resistor with a number of connection terminals, and a number of via holes extending to contact with the resistor. The resistive value of the resistor is variable depending on the size of the via holes, the number of the via holes, or the distance between the via holes.
Abstract:
A printed circuit board having embedded components and a method for the manufacturing of the printed circuit board are disclosed. The printed circuit board includes: an intermediary insulation layer; a first core board, in which a first component having at least one electrode formed on one side is embedded, stacked on one side of the intermediary insulation layer; a first insulation layer stacked on the first core board such that the first component is covered; a second core board, in which a second component having at least one electrode formed on one side is embedded, stacked on the other side of the intermediary insulation layer; a second insulation layer stacked on the second core board such that the second component is covered; and a first via, which penetrates the first core board and the second core board. The use of this printed circuit board allows highly integrated designs.
Abstract:
There is disclosed a thin film capacitor and the like capable of suppressing fluctuations of a capacity, increasing a VBD, and accordingly improving a device characteristic and reliability of a product. In electronic components 1 to 4, a capacitor 11 is formed on a flat substrate 51 as a base material including a planarization layer 52 formed on the surface thereof. The capacitor 11 has a structure in which a lower conductor 21 constituted of an underlayer conductor 21a and a conductor 21b, a dielectric film 31 made of alumina or the like, a resin layer J1 mainly formed of a novolak resin or the like, a resin layer J2 mainly formed of a polyimide resin or the like, and an upper conductor 25 constituted of an underlayer conductor 25a and a conductor 25b are formed on the planarization layer 52 of the substrate 51. The resin layer J1 has an opening K1 above the lower conductor 21, and the resin layer J2 is provided with an opening K2 opened more widely than the opening K1.
Abstract:
A thin-film capacitor assembly includes two plates that are accessed through deep and shallow vias. The thin-film capacitor assembly is able to be coupled with a spacer and an interposer. The thin-film capacitor assembly is also able to be stacked with a plurality of thin-film capacitor assemblies. The thin-film capacitor assembly is also part of computing system.
Abstract:
Construction of printed circuit boards (PCBs) containing electromagnetic shielding and conductive tubes forming signal lines and/or waveguides. The method of construction calls for forming of grooves through layers of the PCB and coating the interior surfaces of these grooves with conductive material. These conductor-coated groove walls serve as conductive surfaces between embedded conductive surfaces on different layers. The conductive surfaces thus joined form a continuous electrically conductive surface that can be configured to act as an electromagnetic shield. Such conductive surfaces may be configured with internal conductors to act as a signal line, or without internal conductors to act as a waveguide.
Abstract:
A multi-layer printed wiring board has a core substrate, a throughhole structure, a first interlayer insulation layer, a first via, a second interlayer insulation layer and a second via. The core substrate has a throughhole opening, and the throughhole structure is formed in the throughhole opening. The first interlayer insulation layer is formed over the core substrate. The first via is formed in the first interlayer insulation layer and has a bottom portion having a first radius. The second interlayer insulation layer is formed over the first interlayer insulation layer and the first via. The second via is formed in the second interlayer insulation layer and has a bottom portion having a second radius greater than the first radius. The first via is positioned inside a circle having a radius (D1) from a gravity center of the throughhole opening, and the radius (D1) of the circle satisfies a formula, (D1)=(R)+(r)/3, where (R) represents a radius of the throughhole opening and (r) represents the first radius of the first via.
Abstract:
A multilayer PCB including at least one carrier, wherein the at least one carrier comprises a pseudo three-layer core. Each three-layer core includes a first metal layer, a first dielectric layer, an internal bridge layer, a second dielectric layer, and a second metal layer. The bridge layer includes a plurality of bridge pads. Each carrier includes a plurality of interlayer interconnection units for interconnecting the first and second metal layers. Each interlayer interconnection unit comprises a pair of opposed blind vias and a bridge pad disposed between, and in electrical contact with, the pair of blind vias.