Invention Grant
US5504986A Method of manufacturing collinear terminated transmission line structure with thick film circuitry 失效
使用厚膜电路制造共线端接传输线结构的方法

Method of manufacturing collinear terminated transmission line structure
with thick film circuitry
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.
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