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process for obtaining passive circuits in thin layer with resistive lines to different resistance layer and circuit board produced with the process, the passive
process for obtaining passive circuits in thin layer with resistive lines to different resistance layer and circuit board produced with the process, the passive
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机译:获得具有电阻线的薄层中的无源电路的方法以及到该方法生产的电路板的电阻层
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摘要
On a single insulating substrate (1) there are deposited in succession a thin layer of tantalium (2) with high resistivity doped with nitrogen and oxygen, a less thin layer of titanium (3) with low resistivity doped with nitrogen, a layer of palladium (4) and a thick layer of gold (7). Selective chemical attacks of said layers then permit tracing of conducting lines (7), resistive lines with greater resistance (10) and resistive lines with less resistance (13).
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