Yuav ua li cas pcb vias tau ua

Vias, qhov ntawm lub rooj tsav xwm hauv Circuit Court, txuas cov kab ntawm cov txheej txheem sib txawv, thiab hloov lub rooj tsav xwm hauv Circuit Court los ntawm cov qauv txheej txheem rau cov qauv peb sab.

Nws yog ib qho nyuaj heev kom tsis txhob hla ntawm ib txheej kab, thiab ob txheej txheej lossis ntau kab yuav tsum tau txuas nrog vias. Los ntawm cov tooj liab ntawm lub qhov phab ntsa, cov kab hluav taws xob tooj liab ntawm cov khaubncaws sab nraud povtseg ntawm sab saud thiab qis yog txuas nrog.

Ib txheej PCB, qee zaum nws tsis tuaj yeem taug kev, thiab cov khaubncaws sab nraud povtseg yuav tsum tau hloov los ntawm vias. Loj thiab me vias los txuas circuits ntawm ntau txheej

Dab tsi ntawm vias muaj?

Muaj ob hom vias ntawm lub rooj tsav xwm Circuit Court: mechanical qhov thiab laser qhov.

(1) Mechanical qhov: ib lub qhov drilled nrog ib tug mechanical laum. Sab hauv txoj kab uas hla ntawm lub qhov yog ntau tshaj 0.2 hli. Ib lub qhov loj dua yuav tau drilled nrog ib tug thicker laum ntsis. Cov khoom siv hluav taws xob feem ntau yog tsim los nrog ib txoj kab uas hla ntawm 0.3mm. Ordinary circuit board manufacturers tuaj yeem ua 0.3mm mechanical qhov. Yog tias cov khoom siv ntawm 0.2mm thiab 0.25mm siv, lub laum me ntsis yuav yooj yim tawg vim qhov qeeb drilling ceev, thiab tus nqi yuav kim dua. Tsis yog txhua tus neeg tsim khoom PCB tuaj yeem ua cov tshuab me me no. Lub laum me ntsis drills los ntawm lub rooj tsav xwm Circuit Court ib zaug, yog li lub tshuab lub qhov tseem hu ua ib los ntawm qhov.

(2) Laser qhov: lub qhov punched los ntawm lub laser. Sab hauv txoj kab uas hla yog feem ntau 0.1mm. Muaj ob peb lub laser qhov ntawm lwm yam specifications. Vim tias lub zog ntawm lub laser tsuas yog txwv, nws tsis tuaj yeem ncaj qha nkag mus rau ntau txheej PCB pawg thawj coj saib, thiab feem ntau yog siv los ua qhov muag tsis pom ntawm qhov chaw.

Kev txiav txim siab rau PCB Via Design

(1) Lub aperture yuav tsum loj npaum li qhov ua tau: raws li tau hais los saum no, kev xyaum me me yuav tsum tau siv rau qhov me me. Kev xyaum me me yog kim thiab muaj cov kev xav tau siab rau lub rooj tsavxwm Hoobkas. Yog tias thaj tsam ntawm pawg thawj coj loj, txawm tias 0.5mm sab hauv txoj kab uas hla tuaj yeem siv tau.

(2) Sim tsis txhob siv laser qhov: uas yog, sim tsis txhob siv laser qhov. Lub rooj tsav xwm Circuit Court nrog ib txheej ntawm lub qhov laser yog 30 feem pua ​​​​ntau dua li qhov tsis muaj qhov laser (thawj lub rooj tsavxwm). Ib qho nrog 2 txheej ntawm lub qhov laser yog 30 feem pua ​​​​ntau kim tshaj qhov uas muaj 1 txheej ntawm lub qhov laser (thib ob lub rooj tsavxwm).

(3) Lwm cov qauv kim dua: qhov nyuaj ntawm cov txheej txheem yog, qhov siab dua tus nqi ntawm lub rooj tsav xwm Circuit Court, thiab qhov sib txawv ntawm qhov pheej yig tshaj thiab kim tshaj yog ntau tshaj kaum tawm zaus. Piv txwv li, ib lub qhov 0.2mm mechanical qhov yog li ntawm 20 feem pua ​​kim tshaj li 0.3mm mechanical qhov Circuit Court board; ib lub qhov rooj sib tshooj nrog sib tshooj 2- txheej laser qhov yog ntau tshaj 20 feem pua ​​​​ntau kim tshaj li staggered-qhov board nrog 2 txheej ntawm laser qhov staggered; Apple lub xov tooj ntawm tes nyiam siv cov txheej txheem kev sib tshuam Lub rooj tsavxwm yog ntau dua 10 npaug kim dua li cov khoom siv hluav taws xob zoo tib yam uas tsuas muaj qhov tshuab (tag nrho lub rooj tsavxwm yog sib tshooj nrog laser qhov).

Kev xuas nrig ntaus, kev ua haujlwm tsis tu ncua lossis random kev npaj?

Lub cheeb tsam sab hauv ntawm txhua qhov yog txwv, thiab tam sim no los ntawm nws kuj raug txwv.

Rau cov kab hluav taws xob, cov kab hauv av thiab lwm cov kab PCB uas yuav tsum tau dhau qhov tam sim no loj, ntau lub vias yuav tsum tau xuas nrig ntaus.

Random xuas nrig ntaus thiab xuas nrig ntaus tsis tu ncua

Cov vias no tuaj yeem teem caij tsis tu ncua hauv matrix, lossis lawv tuaj yeem teem caij random. Puas muaj qhov sib txawv ntawm ob?

Kev npaj tsis tu ncua yuav zoo dua li kev npaj random. Randomly teem kos duab yog ceev. Feem ntau cov tuam txhab tsis muaj qhov yuav tsum tau ua, thiab PCB engineers nrog "obsessive-compulsive disorder" nyiam siv cov cai.

Matrix-hom tsis tu ncua txheej txheem vias tuaj yeem muaj peev xwm thaiv cov teeb liab hauv qee cov lus qhia. Yog tias koj tsis txhob txwm caum lawv kom zoo, random xuas nrig ntaus yuav muaj kev nyab xeeb dua.