Through the analysis of the parasitic characteristics of vias, we can see that in high-speed PCB design, seemingly simple vias often bring great negative effects to circuit design. In order to reduce the adverse effects caused by the parasitic effects of the vias, the following can be done in the design:

1. Considering the cost and signal quality, choose a reasonable size via size. For example, for the 6-10 layer memory module PCB design, it is better to use 10/20Mil (drilled/pad) vias. For some high-density small-size boards, you can also try to use 8/18Mil. hole. Under current technical conditions, it is difficult to use smaller vias. For power or ground vias, you can consider using a larger size to reduce impedance.

2. The two formulas discussed above can be concluded that using a thinner PCB is beneficial to reduce the two parasitic parameters of the via.

3. Feuch gun a bhith ag atharrachadh sreathan de na comharran comharran air bòrd PCB, is e sin ri ràdh, feuch gun a bhith a ’cleachdadh vias neo-riatanach.

4. Bu chòir an cumhachd agus na prìnichean talmhainn a bhith air an drileadh faisg air làimh, agus bu chòir an luaidhe eadar an via agus am prìne a bhith cho goirid ‘s a ghabhas, oir àrdaichidh iad an inductance. Aig an aon àm, bu chòir an cumhachd agus luaidhe talmhainn a bhith cho tiugh ‘s as urrainn gus casg a chuir air.

5. Cuir cuid de dhreachan fon talamh faisg air beàrnan a ’chòmhdaich gus an lùb as fhaisge air a’ chomharra a thoirt seachad. Tha e eadhon comasach àireamh mhòr de thalamh falamh a chuir air bòrd PCB. Gu dearbh, feumaidh an dealbhadh a bhith sùbailte. Is e am modail via a chaidh a dheasbad roimhe seo an suidheachadh far a bheil badan air gach còmhdach. Aig amannan, is urrainn dhuinn padaichean cuid de fhillidhean a lughdachadh no eadhon a thoirt air falbh. Gu h-àraidh nuair a tha dùmhlachd vias gu math àrd, dh ’fhaodadh e leantainn gu cruthachadh clais brisidh a bhios a’ sgaradh an lùb anns an fhilleadh copair. Gus an duilgheadas seo fhuasgladh, a bharrachd air a bhith a ’gluasad suidheachadh an via, faodaidh sinn cuideachd beachdachadh air an via a chur air an t-sreath copair. Tha meud an pad air a lughdachadh.