Abstract:
An object of the invention is to provide a thin-film electronic component and a motherboard in which coupling strength of an external terminal to a supporting substrate is improved. The thin-film electronic component comprising: a supporting substrate; a lower electrode formed on part of the supporting substrate; an insulation layer formed on the lower electrode; an upper electrode formed on the insulation layer; a connection electrode which is formed on part of the supporting substrate located on a bottom surface of a through hole formed on the insulation layer, and is electrically connected to the lower electrode; and an external terminal disposed on the connection electrode within the through hole.
Abstract:
The specification describes of multilevel printed circuit boards and a process for their manufacture in which capacitors and other passive components are buried between levels of the multilevel board. The capacitor in the multilevel structure is designed so that access is conveniently provided to connect from the parallel plate electrodes of the interlevel capacitor to the board surface or to another board level using plated through hole interconnects.
Abstract:
A method for fabricating a flexible interconnect film includes applying a resistor layer over one or both surfaces of a dielectric film; applying a metallization layer over the resistor layer with the resistor layer including a material facilitating adhesion of the dielectric film and the metallization layer; applying a capacitor dielectric layer over the metallization layer; and applying a capacitor electrode layer over the capacitor dielectric layer. The capacitor electrode layer is patterned to form a first capacitor electrode; the capacitor dielectric layer is patterned; the metallization layer is patterned to form a resistor; and the metallization layer and the resistor layer are patterned to form an inductor and a second capacitor electrode. In one embodiment, the dielectric film includes a polyimide, the resistor layer includes tantalum nitride, and the capacitor dielectric layer includes amorphous hydrogenated carbon or tantalum oxide. If the resistor and metallization layers are applied over both surfaces of the dielectric film, passive components can be fabricated on both surfaces of the dielectric film. The dielectric film can have vias therein with the resistor and metallization layers extending through the vias. A circuit chip can be attached and coupled to the passive components by metallization patterned through vias in an additional dielectric layer.
Abstract:
In a method of manufacturing a multilayered ceramic substrate, a capacitor layer is formed on a green sheet of a low temperature co-firable ceramic by means of printing. The green sheet with the capacitor layer and a plurality of other green sheets are laminated together into a substrate laminate. Two release green sheets of alumina system each unsintered below 1,000.degree. C. are further laminated to the top and the bottom of the substrate laminate respectively. The obtained laminate is fired at a temperature ranging between 800.degree. and 1,000.degree. C. under pressure ranging between 2 and 20 kgf/cm.sup.2. The release green sheets adherent to the side surfaces of the substrate are removed after the firing. Subsequently, a wiring pattern is printed on the substrate, which is then fired at a temperature ranging between 800.degree. and 1,000.degree. C.
Abstract translation:在制造多层陶瓷基板的方法中,通过印刷在低温可共熔陶瓷的生片上形成电容器层。 将具有电容器层和多个其它生片的生片层叠在一起形成基板层叠体。 将两个未烧结在1000℃以下的氧化铝体系的两片释放生片进一步层压到基底层压板的顶部和底部。 将得到的层压体在800〜1000℃的温度范围内,在2〜20kgf / cm 2的压力范围内烧成。 在烧制之后,去除附着于基板侧表面的剥离生片。 接着,在基板上印刷布线图案,然后在800〜1000℃的温度下烧成。
Abstract:
A high-capacitance thin film capacitc is compact and has a low profile. A dielectric layer 3 is formed between opposed electrodes 1 and 2. Between the electrodes and the dielectric layer are two layers of conductive particles, 4 and 5.
Abstract:
A device-under-test card includes a matrix of fuses and/or antifuses formed as part of a multi-layered structure. The matrix of fuses and/or antifuses can be electrically programmed to connect any one of first electrical contacts to any one of second electrical contacts and so allows the device-under-test card to act as a junction between burn-in board traces couplable to signal drivers and/or receivers and burn-in board traces couplable to terminals of a device-under-test. The device-under-test card also includes a discrete resistor or alternatively a resistor ladder that permits a terminal of a device-under-test to be coupled to a power or ground terminal or to any combination of resistances including a short, in addition or as an alternative to any one of various signal drivers and/or receivers.
Abstract:
In a method for producing a multilayer circuit, it is possible to produce capacitor structures including electrodes and a dielectric arranged in between. By pressing the capacitor structures into a ceramic layer, it is possible to produce a high-quality capacitor inside the multilayer circuit.
Abstract:
Two types of programmable elements, fuses and antifuses, are disclosed for forming an electrically programmable socket adapter in one embodiment. The socket adapter can be used for interconnecting an electronic component having terminals in a first configuration to electrical contacts in printed circuit board.
Abstract:
An RC network is disclosed in which two electrically conducting regions and a dielectric lying between these regions form a capacitor. At least one of the electrically conducting regions consists of resistance material and is designed in the shape of a meandering path. This network can be balanced while still guaranteeing a uniform region distribution of the resistance and the capacitance, by means of a laser beam. Upon a carrier of heat-resistant material, a resistance layer, a dielectric of glow discharge polymer, and an opposite electrode capable of regeneration, are applied. The dielectric completely covers the resistance layer with the exception of contact pads.
Abstract:
An alumina substrate thick film circuit includes capacitors sealed with two intermediate layers of non-conductive material and two layers of sealing glass. The temperature coefficient of expansion of the sealing glass is less than that of the substrate. The temperature coefficient of expansion of the intermediate layer material is intermediate those of the substrate and the sealing glass, or equal to that of the sealing glass.