What is the 90ohm line width? What is the spacing between 100ohm lines? Can a 5mil wire meet 50ohm? Many engineers encounter these data challenges when designing multi-layer impedance boards during wiring. Today, Wenfeng searched for the crimping structure of Huaqiu Circuit to calculate some impedance parameters, and shared them with everyone.

The impedance line width/line spacing corresponding to different pressing structures are different. The following parameters are for reference only for corresponding structures

Six-layer board 1.0mm laminated structure and impedance parameters:

Six layer board 1.2mm laminated structure and impedance parameters:

Six-layer board 1.6mm laminated structure and impedance parameters:

Six-layer board 2.0mm laminated structure and impedance parameters:

Six layer board 2.5mm laminated structure and impedance parameters: