Kuburikidza ne-gomba dhizaini mukumhanyisa PCB

Kuburikidza ne-gomba dhizaini mukumhanyisa PCB

Mukumhanya kwePCB dhizaini, gomba rinoita serakapusa rinowanzo kuunza mhedzisiro yakaipa kudhizaini yedunhu.Kuburikidza neburi (VIA) chimwe chezvakakosha zvikamu zvemultilayer PCB mapuranga, uye mari yekuchera inowanzoita 30% kusvika 40% yePCB board cost.Zvichitaurwa zviri nyore, gomba rega rega muPCB rinogona kunzi gomba.

Kubva pakuona kwekushanda, maburi anogona kukamurwa kuva marudzi maviri: imwe inoshandiswa pakubatanidza magetsi pakati pezvikamu, imwe inoshandiswa kugadzirisa chigadzirwa kana kuisa.Panyaya yetekinoroji maitiro, maburi aya akakamurwa kuita mapoka matatu, anoti bofu via, cand through.

Kuti uderedze kukanganisa kwakashata kunokonzerwa neparasitic mhedzisiro yepore, zvinotevera zvinhu zvinogona kuitwa zvakanyanya sezvinobvira mukugadzira:

Tichifunga nezve mutengo uye chiratidzo chemhando, gomba rinonzwisisika saizi inosarudzwa.Semuenzaniso, ye6-10 layer memory module PCB dhizaini, zviri nani kusarudza 10/20mil (gomba/pedhi) gomba.Kune imwe yakakwirira-density diki saizi bhodhi, unogona zvakare kuedza kushandisa 8/18mil gomba.Ne tekinoroji yazvino, zvinonetsa kushandisa madiki perforations.Nokuti simba rekupa kana pasi waya gomba inogona kunzi kushandisa yakakura saizi, kuderedza impedance.

Kubva pane maviri mafomula akurukurwa pamusoro, zvinogona kugumiswa kuti kushandiswa kweiyo yakaonda PCB board kunobatsira kudzikisa maviri parasitic paramita yepore.

Mapini emagetsi ekupa uye pasi anofanira kuroverwa pedyo.Iyo ipfupi inotungamira pakati pepini nemakomba, zviri nani, sezvo ivo vachizotungamira kuwedzera inductance.Panguva imwecheteyo, simba rekupa uye pasi rinotungamira rinofanira kunge rakakora sezvinobvira kuderedza impedance.

Iyo chiratidzo wiring pahigh-speed PCB boardhaifanirwe kushandura zvidimbu zvakanyanya sezvinobvira, ndiko kuti, kuderedza maburi asingakoshi.

Mamwe maburi akadzikwa anoiswa pedyo nemaburi emuchinjiro wechiratidzo chekuchinjana kuti ape vharanda rechiratidzo.Iwe unogona kunyange kuisa akawanda ekuwedzera pasi maburi pairiPCB bhodhi.Ehe, iwe unofanirwa kuchinjika mukugadzira kwako.Iyo yekuburikidza-gomba modhi yakurukurwa pamusoro ine mapedhi mune yega yega.Dzimwe nguva, tinogona kuderedza kana kubvisa mapadhi mune mamwe maturu.

Kunyanya kana iri yakakura kwazvo pore density, inogona kutungamira mukuumbwa kwegorofu rakaputsika mumhangura yekumisikidza yedunhu rekuparadzanisa.Kuti tigadzirise dambudziko iri, kunze kwekufambisa nzvimbo yepore, tinogonawo kufunga kuderedza saizi ye solder pad mumhangura yekuisa.

Mashandisiro pamusoro pemakomba: Kuburikidza nekuongorora kuri pamusoro kweiyo parasitic maitiro epamusoro maburi, tinogona kuona kuti mukatihigh-speed PCBdhizaini, iyo inoita seyakapusa isina kunaka kushandiswa kwepamusoro pemakomba kazhinji kunounza mikuru yakaipa mhedzisiro kudhizaini dhizaini.