Bhodhi redunhu rakadhindwa inoumbwa nezvikamu zvemhangura foil circuits, uye hukama pakati pezvikamu zvakasiyana-siyana zvedunhu zvinoenderana ne "vias".Izvi zvinodaro nekuti nhasi redunhu bhodhi kugadzira rinoshandisa maburi akaboorwa kubatanidza maseketi akasiyana.Pakati pematanho edunhu, inofanana nemugero wekubatanidza we-multi-layer underground waterway.Shamwari dzakatamba mutambo wevhidhiyo we "Hama Maria" dzinogona kunge dzichiziva nezvekubatana kwepombi dzemvura.Musiyano ndewekuti pombi dzemvura dzinodiwa kubvumira mvura kuti itenderere ( Haisi kuzoboorwa Hama Mary), uye chinangwa chekubatanidza bhodhi redunhu ndechekuitisa magetsi emagetsi maitiro, saka inonzi via hole, asi kana unongoshandisa chibooreso kana laser kuchera gomba, haiite magetsi.Nokudaro, chidimbu chezvinhu conductive (kazhinji "mhangura") inofanira kunge yakanyungudutswa pamusoro pegomba rakacherwa, kuitira kuti maerekitironi anogona kufamba pakati pezvikamu zvakasiyana zvemhangura yemhangura, nokuti pamusoro pegomba rekutanga rakacherwa ndiro chete resin iyo isingaiti. kuitisa magetsi e.
Kuburikidza negomba: Plating through Hole inonzi PTH
Iyi ndiyo inonyanya kuzivikanwa mhando ye via hole.Iwe unongoda kutora PCB uye kutarisana nechiedza, gomba rinogona kuona chiedza chakajeka ndiro "kuburikidza negomba".Iyi ndiyo zvakare yakapusa mhando yegomba, nekuti kana uchigadzira, iwe unongoda kushandisa chibooreso kana laser kudhiza zvakananga bhodhi redunhu, uye mutengo wakachipa.Asi nerumwe rutivi, mamwe masekete akaturikidzana haadi kubatanidza aya nemaburi.Somuenzaniso, tine imba ine nhurikidzwa nhanhatu.Bere rinoshanda rine mari yakawanda.Ndakatenga nhurikidzwa dzayo dzechitatu nechina.Zvadaro, bere rinoshanda pacharo riri pauriri hwechitatu.Staircase yakagadzirirwa pakati peimba yechina kuti itaurirane, uye bheya rinoshanda harifaniri kubatanidzwa kune mamwe pasi.Panguva ino, kana imwe staircase yakagadzirirwa kupfuura nepakati imwe neimwe kubva kune yekutanga kusvika kune yechitanhatu, ichave yakaparara.Neyezvino redunhu bhodhi Inch goridhe haifanirwe kubvumidzwa.Saka kunyangwe kuburikidza nemakomba zvakachipa, dzimwe nguva vanoshandisa yakawanda PCB nzvimbo.
Blind Hole: Bofu Via Hole (BVH) Iyo yekunze yedunhu rePCB yakabatana kune yakatarisana yemukati layer ine gomba rakapetwa, asi haina kuburikidza, nekuti yakatarisana haigone kuonekwa, saka inonzi "bofu gomba".Kuti uwedzere kushandiswa kwenzvimbo yePCB yedunhu redunhu, "bofu kuburikidza" maitiro abuda.Iyi nzira yekugadzira inoda kutarisisa kudzika kwekuchera (Z axis) kuti ive yakarurama, asi nzira iyi inowanzokonzera kuoma kwe electroplating mugomba, saka hapana mugadziri akazvitora. Izvo zvakare zvinogoneka kuchera makomba ematunhu akaturikidzana anoda kubatanidzwa mune ega edunhu maseru pachine, uye wozoanamatira pamwechete.Iyo 2+4 bhodhi iripo, asi izvi zvinoda kunyatsomira uye kurongeka mudziyo. Tora muenzaniso wepamusoro wekutenga chivakwa.Imba ine nhurikidzwa nhanhatu ine masitepisi chete anobatanidza uriri hwekutanga nehwechipiri, kana kuti masitepisi anobatanidza uriri hwechishanu kusvika pauriri hwechitanhatu, ayo anonzi maburi mapofu. "Mabofu" ndiwo maburi anogona kuonekwa kubva kune rumwe rutivi rwekuonekwa kwebhodhi, asi kwete kune rumwe rutivi rwebhodhi.
Vakavigwa kuburikidza ne: Kuvigwa Via Hole (BVH) Chero dunhu redunhu mukati mePCB rakabatana asi harina kubatana kune rekunze layer.Iyi nzira haigone kuwanikwa nekuchera mushure mekubatana.Inofanira kudhiriwa kune imwe neimwe yedunhu layer.Mushure mekunge mupendero wemukati wasungwa zvishoma, unofanirwa kuve wakagadzirwa nemagetsi usati wanyatsobatanidzwa.Kuenzaniswa neyokutanga "kuburikidza negomba" Uye "mapofu maburi" anonyanya kushanda, saka mutengo unodhura zvakanyanya.Iyi nzira inowanzo shandiswa chete kune yakakwirira-density (HDI) mabhodhi edunhu kuti awedzere nzvimbo inoshandiswa yemamwe matunhu edunhu.Tora muenzaniso wekutenga chivakwa chiri pamusoro.Imba ine nhurikidzwa nhanhatu inongova nemasitepisi anobatanidza pasi rechitatu nerechina, anonzi makomba akavigwa. "Gomba rakavigwa" zvinoreva kuti gomba harionekwe kubva pakuonekwa kwebhodhi, asi gomba chairo rinovigwa mukati mechikamu chebhodhi redunhu.
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