| 摘要 |
A method is provided for fabricating a transmission line between electrical circuits. The method initially provides a first electrical circuit with a signal interface and a reference voltage interface, and a second electrical circuit with a signal interface and a reference voltage interface. The first circuit signal interface is connected to the second circuit signal interface with a metal wire. An insulator coating (e.g., poly-para-xylylene) is formed, encapsulating the wire. Then, an electrically conductive coating is formed, encapsulating the insulator coating. Typically, the conductive coating is connected to at least one of the first and second circuit reference voltage interfaces. In one aspect, the first circuit signal interface connection to the second circuit signal interface is a transmission line formed from the combination of the wire, insulator coating, and conductive coating. The transmission line has a frequency-dependent characteristic impedance responsive to the wire diameter, insulator thickness, and dielectric constant.
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