Printed Circuit Board yog ua los ntawm cov khaubncaws sab nraud povtseg ntawm copper foil circuits, thiab kev sib txuas ntawm cov txheej txheem sib txawv ntawm cov txheej txheem ntawm cov "vias".Qhov no yog vim niaj hnub kev tsim hluav taws xob hauv Circuit Court siv cov qhov drilled los txuas cov circuits sib txawv.Nyob nruab nrab ntawm cov txheej hauv Circuit Court, nws zoo ib yam li kev sib txuas channel ntawm ntau txheej hauv av hauv av.Cov phooj ywg uas tau ua si "Txiv Laug Mary" video game yuav paub txog kev sib txuas ntawm cov kav dej.Qhov txawv yog tias cov kav dej yuav tsum tau tso cai rau cov dej ntws mus (Nws tsis yog yuav tsum tau tho rau Tij Laug Mary), thiab lub hom phiaj ntawm kev sib txuas ntawm lub rooj tsav xwm Circuit Court yog ua hluav taws xob rau cov yam ntxwv hluav taws xob, yog li nws yog hu ua ib qho ntawm lub qhov, tab sis yog tias koj tsuas yog siv lub laum los yog lub laser los laum lub qhov, nws yuav tsis ua hluav taws xob.Yog li ntawd, ib txheej ntawm cov khoom siv hluav taws xob (feem ntau yog "tooj liab") yuav tsum tau electroplated rau ntawm qhov chaw drilled, kom cov electrons tuaj yeem txav mus los ntawm cov txheej txheem tooj liab sib txawv, vim hais tias qhov saum npoo ntawm qhov qub drilled tsuas yog cov resin uas tsis muaj. ua hluav taws xob ntawm.
Los ntawm qhov: Plating Through Hole hu ua PTH
Qhov no yog hom kev tshaj tawm ntawm lub qhov.Koj tsuas yog yuav tsum khaws lub PCB thiab fim lub teeb, lub qhov uas tuaj yeem pom lub teeb ci yog qhov "los ntawm qhov".Qhov no kuj yog qhov yooj yim tshaj plaws ntawm lub qhov, vim hais tias thaum ua nws, koj tsuas yog yuav tsum tau siv lub laum los yog laser ncaj qha mus laum lub Circuit Court board, thiab tus nqi kuj pheej yig.Tab sis ntawm qhov tod tes, qee cov txheej hauv Circuit Court tsis tas yuav txuas cov no los ntawm qhov.Piv txwv li, peb muaj 6-storey tsev.Tus dais ua haujlwm muaj nyiaj ntau.Kuv yuav nws lub tsev thib peb thiab plaub.Tom qab ntawd, tus dais ua haujlwm nws tus kheej yog nyob rau hauv pem teb thib peb.Lub staircase yog tsim los nruab nrab ntawm plaub pem teb kom sib txuas lus nrog ib leeg, thiab tus dais ua hauj lwm tsis tas yuav txuas mus rau lwm cov plag tsev.Lub sijhawm no, yog tias lwm lub staircase yog tsim los hla txhua lub tsev ntawm thawj mus rau lub thib rau pem teb, nws yuav raug pov tseg.Nrog rau tam sim no Circuit Board Inch kub yuav tsum tsis txhob tso cai.Yog li txawm hais tias los ntawm qhov pheej yig, lawv qee zaum siv ntau qhov chaw PCB.
Qhov tsis pom kev: qhov muag tsis pom ntawm qhov (BVH) Sab nraud ntawm PCB txuas nrog cov txheej sab hauv uas nyob ib sab nrog lub qhov plated, tab sis nws tsis dhau los, vim tsis tuaj yeem pom sab nraud, yog li nws yog hu ua "qhov muag tsis pom".Txhawm rau nce qhov chaw siv ntawm PCB Circuit Court txheej, "dig muag ntawm" txheej txheem tau tshwm sim.Txoj kev tsim khoom no yuav tsum tau saib xyuas tshwj xeeb rau qhov tob ntawm qhov drilling (Z axis) kom raug, tab sis txoj kev no feem ntau ua rau muaj teeb meem hauv electroplating hauv lub qhov, yog li yuav luag tsis muaj chaw tsim khoom tau txais nws. Nws kuj tseem tuaj yeem tho qhov rau cov khaubncaws sab nraud povtseg uas yuav tsum tau txuas rau hauv cov txheej txheem ntawm tus kheej ua ntej, thiab tom qab ntawd muab cov nplaum ua ke.Lub 2 + 4 lub rooj tsavxwm yog nyob rau, tab sis qhov no yuav tsum muaj qhov tseeb dua qhov chaw thiab cov khoom sib dhos. Ua piv txwv saum toj no ntawm kev yuav ib lub tsev.Ib lub tsev rau 6-zaj tsuas muaj cov ntaiv txuas rau hauv pem teb thiab hauv pem teb thib ob, lossis cov stairs txuas rau pem teb thib tsib mus rau pem teb thib rau, uas yog hu ua qhov muag qhov muag. "Lub qhov muag tsis pom kev" yog qhov uas tuaj yeem pom los ntawm ib sab ntawm lub rooj tsavxwm lub ntsej muag, tab sis tsis yog lwm sab ntawm lub rooj tsavxwm.
faus ntawm: Buried Via Qhov (BVH) Txhua txheej txheej hauv PCB txuas nrog tab sis tsis txuas nrog txheej txheej.Cov txheej txheem no tsis tuaj yeem ua tiav los ntawm kev drilling tom qab kev sib txuas.Nws yuav tsum tau drilled rau ib tug neeg Circuit Court txheej.Tom qab txheej txheej sab hauv yog ib feem sib koom ua ke, nws yuav tsum tau electroplated ua ntej nws tuaj yeem ua tiav tag nrho.Piv nrog rau tus thawj "los ntawm qhov" Thiab "qhov muag tsis pom qhov" yog ntau zog-intensive, yog li tus nqi yog kim tshaj plaws.Cov txheej txheem no feem ntau tsuas yog siv rau high-density (HDI) Circuit Court boards kom nce qhov chaw siv tau ntawm lwm cov khaubncaws sab nraud povtseg.Ua piv txwv ntawm kev yuav ib lub tsev saum toj no.Ib lub tsev rau rau-zaj dab neeg tsuas yog muaj cov ntaiv txuas rau pem teb thib peb thiab plaub, uas yog hu ua faus qhov. "Lub qhov faus" txhais tau hais tias lub qhov tsis tuaj yeem pom los ntawm qhov pom ntawm lub rooj tsavxwm, tab sis lub qhov tiag yog faus rau hauv txheej txheej ntawm lub rooj tsavxwm.
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