| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the signal integrity and the EMC by applying the low impedance-loss line structure having a very low terminal impedance and a very low transmission coefficient S<SB>21</SB>in the band from several MHz to about 10 GHz to the power supply distribution circuit of a switching mode electrical circuit. Ž<P>SOLUTION: The low impedance-loss line structure has a coaxial line structure chip which is formed of a silver paste layer 11, a carbon graphite layer 12, a conductive polymer layer 14 impregnated in a chemical etching layer, and an aluminum wire 13. The coaxial line structure chip is connected conductively with the leadframe and molded of coating resin, and then the negative electrode terminal and the positive electrode terminal of the leadframe are shaped, respectively, into the shape of the ground terminal and the shape of the power terminal thus forming a low impedance-loss line component. A microstrip line structure chip may be used in place of the coaxial line structure chip. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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