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Chii chinonzi via muPCB?
2024-07-25
Chii chinonzi via muPCB?
Ma-Vias ndiwo maburi anonyanya kushandiswa mukugadzirwa kwePCB. Anobatanidza ma layers akasiyana enetwork imwe chete asi haawanzo shandiswa pakugadzira zvinhu zvinosungirirwa. Ma-Vias anogona kukamurwa kuita mhando nhatu: kuburikidza nemaburi, ma-blind vias, uye ma-bidden vias. Ruzivo rwakadzama rwema-vias matatu aya nderwepazasi:
Basa reMapofu muKugadzira nekugadzira PCB
Mapombi ekuona
Ma-blind vias maburi madiki anobatanidza rimwe jira rePCB kune rimwe risingapfuure nebhodhi rese. Izvi zvinobvumira vagadziri kugadzira maPCB akaomarara uye akazara zvakanyanya zvinobudirira uye zvakavimbika kupfuura nenzira dzemazuva ese. Nekushandisa ma-blind vias, vagadziri vanogona kuvaka mazinga akasiyana-siyana pabhodhi rimwe chete, zvichideredza mari yezvikamu uye zvichikurumidzisa nguva yekugadzira. Zvisinei, kudzika kwe-blind via kazhinji hakufanirwe kudarika chiyero chakati chechinhu chinoenderana nekuvhurika kwayo. Naizvozvo, kudzora kwakaringana kudzika kwekuboorwa (Z-axis) kwakakosha. Kusadzora kwakakwana kunogona kukonzera matambudziko panguva yekushandiswa kwemagetsi.
Imwe nzira yekugadzira ma blind vias inosanganisira kuboora maburi anodiwa muchikamu chimwe nechimwe chedunhu usati waabatanidza pamwe chete. Semuenzaniso, kana uchida blind via kubva kuL1 kuenda kuL4, unogona kutanga waboora maburi muL1 neL2, uye muL3 neL4, wobva waisa jira rese mana pamwe chete. Nzira iyi inoda michina yekumisa nekurongedza zvinhu nemazvo. Matekiniki ese ari maviri anoratidza kukosha kwekunyatsorongeka mukugadzirwa kwezvinhu kuti ive nechokwadi chekuti PCB inoshanda uye yakavimbika.
Mavhiza akavigwa
Chii chinonzi ma-via akavigwa?
Musiyano uripo pakati pe micro via ne buried via ndeupi?
Ma-vias akavigwa zvinhu zvakakosha mukugadzirwa kwePCB, achibatanidza ma-circuit emukati asingasvike kune ekunze, zvichiita kuti asaonekwe nekunze. Ma-vias aya akakosha pakubatana kwemasaini emukati. Nyanzvi muindasitiri yePCB dzinowanzo taura kuti, "Ma-vias akavigwa anoderedza mukana wekukanganiswa kwemasaini, anochengetedza kuenderera mberi kweimpedance yetambo yekutumira, uye anochengetedza nzvimbo yekubatanidza waya." Izvi zvinoita kuti zvive zvakanaka kune maPCB ane huwandu hwakawanda uye anomhanya zvakanyanya.
Sezvo ma-vias akavigwa asingakwanise kuboorwa mushure mekuboorwa, kuboorwa kunofanirwa kuitwa pazvikamu zvedunhu rega rega usati waboorwa. Maitiro aya anotora nguva yakawanda kana tichienzanisa nemaburi anobuda nepaburi, zvichiita kuti mitengo ikwire. Pasinei neizvi, ma-vias akavigwa anonyanya kushandiswa muma-PCB ane density yakakura kuti awedzere nzvimbo inoshandiswa kune mamwe ma-circuit layers, nokudaro zvichiwedzera kushanda uye kuvimbika kwePCB.
Kuburikidza nemakomba
Maburi anoshandiswa kubatanidza zvidimbu zvese kuburikidza nechikamu chepamusoro nechepasi. Kuisa mhangura mukati memaburi kunogona kushandiswa mukati mekubatanidza kana segomba rekuisa zvikamu. Chinangwa chemaburi ndechekubvumira kupfuura kwewaya dzemagetsi kana zvimwe zvikamu nepamusoro. Kupfuura nemaburi kunopa nzira yekuisa nekuchengetedza kubatana kwemagetsi pamabhodhi edunhu akadhindwa, waya kana substrates dzakafanana dzinoda nzvimbo yekubatanidza. Anoshandiswawo sezvibatiso uye zvinosunga muzvigadzirwa zvemaindasitiri zvakaita sefenicha, masherufu, uye michina yekurapa. Pamusoro pezvo, maburi anogona kupa mukana wekupinda nepakati pematanda ane shinda mumichina kana zvinhu zvekuvaka. Uyezve, maitiro ekubatanidza maburi anodiwa. Viasion inopfupisa zvinodiwa zvinotevera zvekubatanidza maburi.
*Chenesa maburi uchishandisa nzira yekuchenesa plasma.
*Iva nechokwadi chekuti gomba rekupfuura naro harina marara, tsvina kana guruva.
*Yera maburi ekupinda nawo kuti uve nechokwadi chekuti anoenderana nemudziyo wekubatanidza
*Sarudza chinhu chakakodzera chekuzadza maburi: silicone caulk, epoxy putty, expanding furo kana polyurethane glue.
*Isa wodzvanya mudziyo wekubatanidza mugomba rekupinda naro.
*Batisisa zvakanaka kwemaminitsi gumi usati wabvisa kumanikidzwa.
*Pukuta chero chinhu chipi zvacho chinozadza chiri mumaburi akatenderedza kana chapera.
* Tarisa maburi nguva nenguva kuti uve nechokwadi chekuti haana maburi kana kukuvara.
*Dzokorora maitiro aya kana zvichidikanwa kuti ubvise maburi ane saizi dzakasiyana.
Kushandiswa kukuru kwekubatanidza magetsi kuburikidza ne via. Saizi yacho idiki pane mamwe maburi anoshandiswa muzvikamu zve solder. Maburi anoshandiswa muzvikamu zve solder achava makuru. Muhunyanzvi hwekugadzira PCB, kuchera ibasa guru, uye munhu haafanire kuregeredza. Bhodhi redunhu harigone kupa kubatana kwemagetsi uye mabasa emidziyo isina kugadziriswa pasina kubhoora maburi anodiwa muplate yakaputirwa nemhangura. Kana kuchera kusina kunaka kwakakonzera dambudziko mukushanda kwe maburi, zvinogona kukanganisa kushandiswa kwechigadzirwa, kana kuti bhodhi rese richaraswa, saka maitiro ekuchera akakosha.
Nzira dzekuboorera mavia
Kune nzira mbiri dzekuboorera mavia: kuboorera nemechanical uye kuboorera nelaser.
Kuboora nekushandisa michina kuburikidza nemaburi inzira yakakosha muindasitiri yePCB. Kuboora nekushandisa michina, kana kuti kuburikidza nemaburi, kune maburi e cylindrical anopfuura nepabhodhi rose uye anobatanidza rimwe divi kune rimwe. Anoshandiswa pakuisa zvikamu uye kubatanidza macircuit emagetsi pakati pezvikamu. Kuboora nekushandisa michina kuburikidza nemaburi kunosanganisira kushandisa zvishandiso zvakakosha zvakaita semabhora, reamers, uye countersinks kugadzira maburi aya nemazvo uye akarurama. Maitiro aya anogona kuitwa nemaoko kana nemichina otomatiki zvichienderana nekuoma kwezvinodiwa zvekugadzira nekugadzira. Hunhu hwekuboora nekushandisa michina hunokanganisa zvakananga mashandiro echigadzirwa uye kuvimbika, saka danho iri rinofanira kuitwa nemazvo nguva dzese. Nekuchengetedza mwero wepamusoro kuburikidza nekuboora nekushandisa michina, kuburikidza nemaburi kunogona kuitwa nenzira yakavimbika uye nemazvo kuti kuve nechokwadi chekubatana kwemagetsi kunoshanda.
Kuboora neLaser
Kuboora nekushandisa michina kuburikidza nemaburi inzira yakakosha muindasitiri yePCB. Kuboora nekushandisa michina, kana kuti kuburikidza nemaburi, kune maburi e cylindrical anopfuura nepabhodhi rose uye anobatanidza rimwe divi kune rimwe. Anoshandiswa pakuisa zvikamu uye kubatanidza macircuit emagetsi pakati pezvikamu. Kuboora nekushandisa michina kuburikidza nemaburi kunosanganisira kushandisa zvishandiso zvakakosha zvakaita semabhora, reamers, uye countersinks kugadzira maburi aya nemazvo uye akarurama. Maitiro aya anogona kuitwa nemaoko kana nemichina otomatiki zvichienderana nekuoma kwezvinodiwa zvekugadzira nekugadzira. Hunhu hwekuboora nekushandisa michina hunokanganisa zvakananga mashandiro echigadzirwa uye kuvimbika, saka danho iri rinofanira kuitwa nemazvo nguva dzese. Nekuchengetedza mwero wepamusoro kuburikidza nekuboora nekushandisa michina, kuburikidza nemaburi kunogona kuitwa nenzira yakavimbika uye nemazvo kuti kuve nechokwadi chekubatana kwemagetsi kunoshanda.
Kudzivirira PCB kuburikidza nekugadzira
Iva nechokwadi chekuti ma-via haasi pedyo zvakanyanya nezvikamu kana mamwe ma-via.
MaVia chikamu chakakosha chekugadzirwa kwePCB uye anofanira kuiswa nokungwarira kuti ave nechokwadi chekuti haakonzere kukanganiswa nezvimwe zvikamu kana mavia. Kana mavia ari pedyo zvakanyanya, pane njodzi yekupfupika kwemagetsi, izvo zvinogona kukuvadza zvakanyanya PCB nezvimwe zvikamu zvakabatana. Sekureva kwaViasion, kuti njodzi iyi ideredzwe, mavia anofanira kuiswa kure ne 0.1 inches kubva kune zvikamu, uye mavia haafanire kuiswa pedyo ne 0.05 inches kubva kune mumwe nemumwe.
Iva nechokwadi chekuti ma-vias haapindi pamwe chete nematraces kana mapedhi ari pazvikamu zviri pedyo.
Pakugadzira ma-via ebhodhi redunhu, zvakakosha kuve nechokwadi chekuti ma-via haapindirane nema-trace kana ma-pads pane mamwe ma-layer. Izvi zvinokonzerwa nekuti ma-via anogona kukonzera ma-electrical shorts, zvichikonzera kutadza kushanda zvakanaka kwesystem uye kutadza kushanda zvakanaka. Sezvakataurwa nemainjiniya edu, ma-via anofanirwa kuiswa munzvimbo dzisina ma-trace kana ma-pads ari pedyo kudzivirira njodzi iyi. Pamusoro pezvo, zvichaita kuti ma-via asapindirane nezvimwe zvinhu zviri paPCB.
Funga nezvehuwandu hwemazuva ano uye tembiricha paunenge uchigadzira ma-vias.
Iva nechokwadi chekuti mavhaya ane copper plating yakanaka kuti akwanise kutakura magetsi.
Kubatanidzwa kwema-vias kunofanira kufungwa nokungwarira, kudzivirira nzvimbo dzingave dzakaoma kana dzisingabviri.
Nzwisisa zvinodiwa pakugadzira usati wasarudza uchishandisa saizi nemarudzi.
Nguva dzose isa ma-vias angangoita 0.3mm kubva kumipendero yebhodhi kunze kwekunge zvataurwa neimwe nzira.
Kana ma-vias akaiswa pedyo zvakanyanya, zvinogona kukuvadza bhodhi kana richiboorwa kana kuendeswa kune imwe nzira.
Zvakakosha kufunga nezve aspect ratio yemavias panguva yekugadzira, sezvo mavias ane aspect ratio yakakwira anogona kukanganisa kusimba kwechiratidzo uye kupisa.
Ita shuwa kuti ma-via ane nzvimbo yakakwana yekupinda mune mamwe ma-via, zvikamu uye mipendero yebhodhi zvichienderana nemitemo yekugadzira.
Kana maviya akaiswa maviri kana nhamba dzakakosha, zvakakosha kuti aparadzaniswe zvakaenzana kuti ashande zvakanaka.
Chenjerera ma via angave ari pedyo zvakanyanya nemuviri wechinhu, sezvo izvi zvichigona kukanganisa masaini ari kupfuura nepakati.
Ndichifunga nezvenzira dziri pedyo nendege.
Dzinofanira kuiswa nokungwarira kuderedza ruzha rwechiratidzo nemagetsi.
Funga nezvekuisa ma-vias muchikamu chimwe chete nezviratidzo pazvinogoneka, sezvo izvi zvichideredza mari ye-vias uye zvichivandudza mashandiro.
Deredza huwandu hwema "vias" kuti uderedze kuoma kwekugadzira uye mari inoshandiswa.
Hunhu hwemakanika hwePCB kuburikidza negomba
Dhayamita yeburi rakaburitswa
Dhayamita yemaburi epakati pemaburi inofanira kupfuura dhayamita yepini ye plug-in uye ichengetedze mukana. Dhayamita shoma iyo waya inogona kusvika kuburikidza nemaburi inogumira netekinoroji yekuboorera ne electroplating. Dhayamita yepakati pemaburi iri diki, nzvimbo diki muPCB, capacitance yeparasiteti idiki, uye mashandiro epamusoro-soro ari nani, asi mutengo uchave wakakwira.
Pedhi rinopinda nepaburi
Pedhi iyi inoona kubatana kwemagetsi pakati pechikamu chemukati che electroplating cheburi rinopinda newaya dziri pamusoro pebhodhi redunhu rakadhindwa (kana mukati).
Kukwanisa kweburi rinopinda
gomba rinopinda nepakati rine simba reparasitic pasi. Simba reparasitic rinopinda nepakati rinodzikisa kana kukanganisa kukwira kwechiratidzo chedhijitari, izvo zvisingafadzi kutapurirana kwechiratidzo che high-frequency. Ndiyo mhedzisiro huru yakaipa yesimba reparasitic rinopinda nepakati. Zvisinei, mumamiriro ezvinhu akajairika, simba resimba reparasitic rinopinda nepakati idiki uye rinogona kuva diki—dhayamita diki regomba rinopinda nepakati, simba reparasitic rinopinda nepakati idiki.
Kupinza kweburi kuburikidza neburi
Maburi anoshandiswa kuburikidza nemaPCB anowanzo shandiswa kubatanidza zvikamu zvemagetsi, asi anogonawo kuva nemigumisiro isingatarisirwi: inductance.
Kupinza simba (inductance) imhando yemaburi anopinda nepakati anoitika kana magetsi achifamba nepakati pawo okonzera simba remagineti. Simba remagineti iri rinogona kukonzera kukanganiswa kwemamwe maburi anopinda nepakati, zvichikonzera kurasikirwa kwechiratidzo kana kukanganisa. Kana tichida kuderedza mhedzisiro iyi, zvakakosha kuti tinzwisise kuti inductance inoshanda sei uye matanho ekugadzira aunogona kutora kuderedza kukanganisa kwayo paPCB dzako.
Dhayamita yemaburi epakati pemaburi inofanira kupfuura dhayamita yepini ye plug-in uye ichengetedze mukana. Dhayamita shoma iyo waya inogona kusvika kuburikidza nemaburi inogumira netekinoroji yekuboorera ne electroplating. Dhayamita yepakati pemaburi iri diki, nzvimbo diki muPCB, capacitance yeparasiteti idiki, uye mashandiro epamusoro-soro ari nani, asi mutengo uchave wakakwira.
Sei PCB vias ichifanira kuvharwa?
Heano mamwe ezvikonzero nei maPCB vias achifanira kuvharwa, zvakapfupikiswa neShenzhen Rich Full Joy Electronics Co., Ltd:
Shenzhen Rich Full Joy Electronics Co., Ltd:
MaPCB vias anopa chibatiso chemuviri kune zvikamu zvekuisa uye kubatanidza maPCB layers akasiyana, zvichiita kuti bhodhi riite basa raro nemazvo. MaPCB vias anoshandiswawo kuvandudza mashandiro ekupisa kwePCB uye kuderedza kurasikirwa kwechiratidzo. Sezvo maPCB vias achifambisa magetsi kubva kune rimwe PCB layer kuenda kune rimwe, anofanira kuvharwa kuti ave nechokwadi chekubatana pakati pemaPCB layers akasiyana. Chekupedzisira, maPCB vias anobatsira kudzivirira mapfupi nekudzivirira kusangana nezvimwe zvikamu zviri pachena paPCB. Saka, maPCB vias anofanira kuvharwa kudzivirira chero kutadza kushanda zvakanaka kwemagetsi kana kukuvara kwePCB.
Pfupiso
Muchidimbu, PCB vias zvikamu zvakakosha zvePCBs, zvichivabvumira kuendesa masaini zvinobudirira pakati pezvikamu uye kubatanidza zvinhu zvakasiyana zvebhodhi. Nekunzwisisa mhando dzadzo dzakasiyana siyana nezvinangwa, unogona kuva nechokwadi chekuti dhizaini yako yePCB yakagadziriswa kuti ishande zvakanaka uye ive yakavimbika.
Shenzhen Rui Zhi Xin Feng Electronics Co., Ltd. inopa mabasa ekugadzira maPCB akazara, kuwana zvikamu, kugadzira maPCB, uye kugadzira maelektroni. Tine ruzivo rwemakore anopfuura makumi maviri, tagara tichipa mhinduro dzePCBA dzemhando yepamusoro pamitengo inokwikwidzana kune vatengi vanopfuura 6,000 pasi rose. Kambani yedu ine zvitupa zvakasiyana-siyana zveindasitiri uye mvumo yeUL. Zvigadzirwa zvedu zvese zvinoongororwa ne100% E-testing, AOI, uye X-RAY kuti zvisangane nezvinodiwa zvepamusoro zveindasitiri. Takazvipira kupa hunhu hwakanaka uye kuvimbika mune yega yega PCB assembly project.
Kuboorera PCB Laser Kuboorera PCB Mechanical
Kuboorera kweLaser kwePCB Kuboorera kwePCB
Kuboorera Kwemakomba ePCB neLaser
Kuboorera PCB Microvia Laser Kuboorera PCB Hole
PCB Laser Drilling Technology Maitiro Ekudhonza PCB
Maitiro Ekuchera Nhanganyaya:
1. Kupinza, Kuboorera, uye Kuverenga Maburi
Chinangwa: Kuboora maburi pamusoro pePCB kuti pave nekubatana kwemagetsi pakati pezvikamu zvakasiyana.
Nekushandisa mapini ekumusoro pakuboorera uye mapini epasi pakuverenga maburi, maitiro aya anovimbisa kugadzirwa kwemavias anorerutsa kubatana kwedunhu repakati pemaseru pabhodhi redunhu rakadhindwa (PCB).
Kuboorera kweCNC:
Chinangwa: Kuboora maburi pamusoro pePCB kuti pave nekubatana kwemagetsi pakati pezvikamu zvakasiyana.
Zvinhu Zvinokosha:
Zvidimbu zveBooresa: Yakagadzirwa ne tungsten carbide, cobalt, uye organic adhesives.
Pureti Yekufukidza: Chinonyanya kushandiswa nearuminiyamu, inoshandiswa pakuboorera zvidimbu, kudzima kupisa, kuderedza maburi, uye kudzivirira kukuvara kwetsoka panguva yekushanda.
Ndiro Yekutsigira: Bhodhi rinonyanya kushandiswa pakudzivirira tafura yemuchina wekuboorera, kudzivirira kubuda kwemvura, kuderedza tembiricha yedhiringi, uye kuchenesa resin residues kubva kuma drill bit flutes.
Nekushandisa kuchera kweCNC kwakanyatsogadzirwa, maitiro aya anovimbisa kubatana kwakarurama uye kwakavimbika pakati pemabhodhi edunhu akadhindwa (PCBs).
Kuongorora Maburi:
Chinangwa: Kuve nechokwadi chekuti hapana zvinhu zvisina kumira zvakanaka zvakaita sekuboorwa zvakanyanya, kuboorwa pasi pevhu, makomba akavharika, makomba makuru, kana makomba asina kukura mushure mekuboorwa.
Nekuita ongororo dzakakwana dzemaburi, tinovimbisa kunaka uye kuenderana kwenzira imwe neimwe, tichiona kushanda kwemagetsi uye kuvimbika kwebhodhi redunhu rakadhindwa (PCB).
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