Abstract:
A method of forming ceramic material which includes mullite (3Al.sub.2 O.sub.3.2SiO.sub.2) in any desired percentage. A particulate mixture is formed of (1) mullite in an amount of at least 5% by weight, (2) Al.sub.2 O.sub.3 in an amount to provide sufficient SiO.sub.2 to combine with Al.sub.2 O.sub.3 to form the desired mullite. The mixture is sintered to a temperature in the range of 1300.degree. C. to 1600.degree. C. wherein the Al.sub.2 O.sub.3 and SiO.sub.2 react to form mullite under the influence of the initially added mullite.
Abstract translation:一种形成陶瓷材料的方法,其包括任意所需百分比的莫来石(3Al2O3.2SiO2)。 颗粒状混合物由(1)至少5重量%的莫来石形成,(2)Al 2 O 3,其量足以提供足够的SiO 2以与Al 2 O 3结合以形成所需的莫来石。 将混合物烧结至1300℃至1600℃的温度,其中Al 2 O 3和SiO 2在最初加入的莫来石的影响下反应形成莫来石。
Abstract:
A method of forming a window via capacitor comprises a first step of providing a plurality of interleaved dielectric layers and paired electrode layers to create a multilayered arrangement characterized by top and bottom surfaces and a plurality pf side surfaces. First and second transition layer electrode portions are provided on a top surface of the multilayered arrangement on top of which a cover layer formed to define openings, or windows, therein is provided. The cover layer may be provided before device firing or may be printed on after firing using polymer or glass. Peripheral terminations are subsequently formed on the device periphery to connect selected electrode layers to respective transition layer electrode portions. Via terminations are formed in the cover layer openings, on top of which solder balls may be applied. Some of the terminations may be formed in accordance with various plating techniques as disclosed.
Abstract:
A capacitor anode that is formed from ceramic particles (e.g., Nb2O5, Ta2O5) capable of being chemically reduced to form an electrically conductive composition (e.g., NbO, Ta) is provided. For instance, a slip composition containing the ceramic particles may be initially formed and deposited onto a carrier substrate in the form of a thin layer. If desired, multiple layers may be formed to achieve the target thickness for the anode. Once formed, the layer(s) are subjected to a heat treatment to chemically reduce the ceramic particles and form the electrically conductive anode. Contrary to conventional press-formed anodes, the slip-formed anodes of the present invention may exhibit a small thickness, high aspect ratio (i.e., ratio of width to thickness), and uniform density, which may in turn may lead to an improved volumetric efficiency and equivalent series resistance (“ESR”).
Abstract translation:由陶瓷颗粒(例如Nb 2 O 5,Ta 2 O 5)形成的电容器阳极, 能够被化学还原以形成导电组合物(例如,NbO,Ta)。 例如,可以初始形成含有陶瓷颗粒的滑动组合物,并以薄层的形式沉积到载体基材上。 如果需要,可以形成多个层以实现阳极的目标厚度。 一旦形成,就对该层进行热处理以化学还原陶瓷颗粒并形成导电阳极。 与传统的压制成型阳极相反,本发明的形成滑动的阳极可以表现出小的厚度,高纵横比(即,宽度与厚度之比)和均匀的密度,这又可能导致改进的体积 效率和等效串联电阻(“ESR”)。
Abstract:
Disclosed are apparatus and methodology for providing land grid feedthrough capacitor designs having broad applicability to signal and power filtering technologies. Such capacitor designs provide characteristics for use in decoupling applications involving both signal level and power level environments. Low equivalent series inductance (ESL) is provided by current cancellation techniques involving opposite current flow in power or signal and ground current paths through the device.
Abstract:
Disclosed are apparatus and methodology for providing land grid feedthrough capacitor designs having broad applicability to signal and power filtering technologies. Such capacitor designs provide characteristics for use in decoupling applications involving both signal level and power level environments. Low equivalent series inductance (ESL) is provided by current cancellation techniques involving opposite current flow in power or signal and ground current paths through the device.
Abstract:
A method for forming a substrate for electronic applications having a dielectric constant of less than 6 is disclosed. The method comprises admixing crystalline cordierite particles having a size of 0.1--10 microns with a binder and solvent, casting the same into a sheet, drying the cast sheet into a self-supporting green sheet and then heating the green sheet to burn out the binder and to sinter the particles together. A metallization pattern is deposited on the green sheet after the casting but before the heating, the metallization pattern being molybdenum or tungsten. The cordierite has a defined coefficient of thermal expansion. A dielectric substrate for mounting of integrated circuit devices thereon is also disclosed.
Abstract:
The present subject matter is directed to methods and apparatus for providing a multilayer array component with interdigitated electrode layer portions configured to selectively provide signal filtering characteristics, over-voltage transient suppression capabilities, and land grid array (LGA) terminations. Embodiments of the present subject matter may define a single capacitor, a capacitor array, or a multilayer vertically integrated array with configurable equivalent electrical characteristics including equivalent series inductance (ESL), equivalent series resistance (ESR), and configurable capacitance and voltage clamping and transient suppression capabilities.
Abstract:
A process and a solid plane structure for minimizing delamination during sintering in the fabrication of multi-layer ceramic substrates, wherein the solid plane structure is designed to obtain maximum ceramic to ceramic interface contact.