Abstract:
Applique circuits suitable for advanced packaging applications are introduced. These structures are particularly suited for the simple integration of large amounts (many nanoFarads) of capacitance into conventional integrated circuit and multichip packaging technology. In operation, applique circuits are bonded to the integrated circuit or other appropriate structure at the point where the capacitance is required, thereby minimizing the effects of parasitic coupling. An immediate application is to problems of noise reduction and control in modern high-frequency circuitry.
Abstract translation:引入适用于先进封装应用的Appliqu + E,acu e + EE电路。 这些结构特别适用于将大量(许多nanoFarads)电容简单集成到传统的集成电路和多芯片封装技术中。 在操作中,贴片+ E,acu e + EE电路在需要电容的位置被结合到集成电路或其他适当的结构,从而最小化寄生耦合的影响。 一个立即的应用是现代高频电路中降噪和控制的问题。
Abstract:
Internal wiring made of copper of low-resistance is provided in a ceramic oxide. Green sheets 10 made of oxide powder are provided with plane wiring 18 and/or via wiring 14 in which copper is used as wiring material. The green sheets 10 are laminated and integrated in such a manner that the wiring portions 4 and 18 are covered with the green sheet so as not to be exposed onto a surface. Then the laminated body is fired at a maximum temperature in a range from 1,083.degree. to 1,800.degree. C.
Abstract:
A collinear terminated transmission line structure and method for producing same is presented. The structure comprises a plurality of conductors electrically connected to a plurality of resistors. A predetermined spacing between each of the plurality of conductors ranges from 2 mils to 7 mils. Greater spacings are easily accomplished with the present method. The method comprises the steps of screen-printing a resistor swath onto a substrate, the swath being adjacent to one end of the plurality of conductors. After the substrate is dipped into a solution, the resistor swath is laser trimmed to form the plurality of resistors. The substrate is then rinsed with warm water to remove the solution. The solution can be a poly-vinyl alcohol and isopropyl alcohol mixture.
Abstract:
A semiconductor package applicable to integrated circuits and other semiconductor devices of the kind needing high integration and high speed operation. The package has a printed circuit board implemented by a glass cloth impregnated with epoxy, bismaleimide-triazine (BT) or similar resin, a power source layer provided in the circuit board in a plate structure, a ground layer formed on the surface of the circuit board in a plate structure, and a thin film laminate wiring formed on the ground layer in a plate structure and consisting of copper and benzocyclobutene. The package desirably shields leakage currents and matches a characteristic impedance with accuracy, thereby noticeably reducing noise and enhancing high speed signal transmission.
Abstract:
A process for manufacturing a thin film circuit board includes forming an insulator layer having a relatively high etching rate in a desired thickness on an insulator layer having a relatively low etching rate and a relatively high dielectric constant, arranging a conductor layer on the insulator layer having a relatively high etching rate, selectively removing the insulator having a relatively high etching rate by etching but excluding a portion located beneath the conductor layer, forming an insulator portion that contains the insulator layer having a relatively high etching rate and supports the conductor layer in the undercut state, forming an insulator layer having a relatively low dielectric constant so as to surround the entire conductor layer, and forming an insulator layer having a relatively high dielectric constant on top of the insulator layer having a relatively low dielectric constant so as to surround the entire insulator layer having a relatively low dielectric constant.
Abstract:
A conductive pattern layer structure includes an insulating member containing polyimide, a patterned thin film formed on the insulating member, and a patterned conductive layer formed on the thin film. The patterned conductive layer contains copper. Further, the layer structure includes a patterned barrier layer covering an upper surface and side surfaces of the patterned conductive layer to prevent copper from being diffused into another insulating layer formed around the patterned barrier layer.
Abstract:
A metal base (1), and holes (12) therein, of a printed circuit board are given an insulating coat (2) produced from an epoxy compound in particulate form which is deposited and machined successively at either side. An insulating topology (16) in a photoresist imposed on the insulating coat (2) is metal-plated in vacuum. On removing the metal from the prominent portions of the topology (16) tracks (4) and connecting pads (5) of a layer (3) of conducting pattern are left. An insulating topology (18) consistent with the disposition of connecting pads (11) and connecting posts (10) interconnecting the layers (3, 6) of conducting patterns is formed and metal-plated. On removing the metal from the prominent portions an insulating layer (9) with connecting posts (10) and connecting pads (11) is left. Next, an insulating topology (19) consistent with the topology of the layer (6) of conducting pattern is formed and metal-plated. After machining, tracks (7) with connecting pads (8) of the layer (6) of conducting pattern are left.
Abstract:
A thin-film bypass capacitor is fabricated by forming a plurality of through holes through the thickness of a nonconductive base substrate and filling the through holes with a conductive material to form ground vias and power vias. A sequence of back side metalization layers are applied to the back side surface of the base substrate. A sequence of bottom contact layers are applied to the front side surface of the base substrate. A bottom contact power terminal is formed and a bottom contact metalization layer is applied to the surface of the bottom contact layers. A portion of the metalization layer is removed and an insulating layer is formed on the surface of the bottom contact metalization layer. A ground metalization feedthrough and a power metalization feedthrough are formed at the surface of the insulating layer. A sequence of top contact layers are applied to the surface of the insulating layer and a front side ground terminal and front side power terminal are formed. A back side ground terminal and a back side power terminal are formed at the back side of the base substrate.
Abstract:
The present invention is an integrated heat sink module and a method of fabricating conductive structures on a substrate. The method of the present invention includes cleaning a substrate material to remove any impurities present on the substrate surface. The method further includes placing a protective layer resilient to chemicals used in conductive structure formation, on a first surface. The first surface is opposite a second surface on which conductive structures are formed. The method includes forming conductive structures on the second surface of the substrate. The protective layer is then removed from the first surface of the substrate.
Abstract:
A method of forming a conductive pattern layer structure includes providing an insulating member containing polyimide, forming a patterned thin film on the insulating member, and forming a patterned conductive layer on the thin film. The patterned conductive layer contains copper. Further, a barrier layer can be patterned to cover an upper surface and side surfaces of the patterned conductive layer to prevent copper from being diffused into another insulating layer formed around the patterned barrier layer.