High current feedthrough device
A rated current and electrical connection technology, applied in the direction of current response resistors, varistors, feedthrough capacitors, etc., can solve problems such as the absence of ideal characteristics and performance characteristics
Inactive Publication Date: 2005-10-12
AVX CORP
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Problems solved by technology
[0008] While various aspects and optional features are known in the art of feedthrough capacitor technology, there has not been a single design that incorporates substantially all of the desirable features and performance characteristics as discussed herein
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[0042] As stated in the brief description of the previous invention section, the inventive subject matter relates to an improved multilayer feedthrough capacitor structure and its performance characteristics.
[0043] More specifically, one example of a multilayer feedthrough capacitor disclosed herein is capable of significantly improving current carrying capability over previously available but substantially similar capacitors by using a previously used but relatively less robust form factor. Features.
[0044] Known schemes for multilayer feedthrough capacitors will be referred to Figure 7 and Figure 8 discuss. refer to Figure 7 and Figure 8 , it can be observed that it has been shown that known multilayer feedthrough capacitors are generally similar to the capacitors described in the previously mentioned AVX Corporation publication. As an example, the device shown may be housed in a 1206 or 0805 case size and may consist of many layers of conductive material sandw...
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The present disclosure is to a high current multi-layer chip-type feedthru device that may be composed of multiple alternating layers of conductive material and semiconductor material in a fashion to form a feedthru capacitor with transient suppression properties. The disclosed technology provides a feedthru device with significantly improved current handling capability relative to previously known devices having a similar form factor. The improved current handling capability is achieved by a translation of component geometry that results in a substantial decrease in the feedthru capacitor's internal resistance. The conductive layers interleaved among the layers of semiconductive material are characterized as either main signal carrying conductors or transient grounding electrical conductors. Main signal carrying conductors extend along the generally shorter width of the feedthru device, and are characterized by a substantially wide current path. Transient grounding conductors extend in a generally perpendicular fashion to the main signal carrying conductors along the length of the feedthru device. A plurality of solder elements may be plated to the feedthru device for electrically connecting selected of the conductive layers.
Description
technical field [0001] The subject matter of the present invention generally relates to a high current chip-type feed-through device that can be used for surge protection in various electronic applications. More specifically, the disclosed device is a multilayer, transient suppressed feedthrough device characterized by high current carrying capability and varistor-like surge suppression capabilities. Background technique [0002] A rheostat, short for "variable voltage resistor", is a device with nonlinear resistance characteristics that are sensitive to voltage. Most varistors are composed of a semiconductor material whose resistance depends on the voltage applied to the device. A varistor is usually connected in parallel to some electronic device or circuit component to avoid overvoltage of the device or component. When an electronic device or circuit element is subjected to an enhanced voltage level, the resistance of the varistor drops dramatically. Therefore, during ...
Claims
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IPC IPC(8): H01C7/10H01C7/12H01C7/13H01G4/228H01G4/35
CPCH01G4/30H01G4/232H01G4/35
Inventor 威尔逊·海沃思罗纳德·登科
Owner AVX CORP