Multilayer PCB circuit boards feem ntau ntsib "qhov mus rau txoj kab ze dhau, dhau ntawm qhov muaj peev xwm ntawm cov txheej txheem", peb tsim lub PCB pawg thawj coj saib, qhov kev xav tshaj plaws yog yuav ua li cas cov xaim tuaj yeem txuas rau txhua txheej nrog cov kab teeb liab tsim nyog tshaj plaws. Qhov ntau ceev pcb kab dhau ntawm lub qhov (ntawm) ntau dua qhov ntom ntom, dhau lub qhov muaj peev xwm ua lub luag haujlwm ntawm cov hluav taws xob sib txuas ntawm cov khaubncaws sab nraud ntawm cov khaubncaws sab nraud pov hwm.
Nyob ze rau ntawm lub qhov ntawm cov khoom ntawm cov teeb meem dab tsi yuav ua rau? Thiab peb yuav tsum xyuam xim rau qhov teeb meem nyob ze li cas? Peb yuav qhia koj ib leeg.
1.kev ua haujlwm drilling yog tias ob lub qhov nyob ze dhau ntawm cov txheej txheem PCB drilling yuav cuam tshuam rau lub sijhawm. Raws li qhov tshwm sim ntawm qhov drilling thawj qhov tom qab lub qhov thib ob hauv qhov kev taw qhia ntawm cov khoom siv yuav nyias dhau, ua rau lub zog tsis sib xws ntawm lub tshuab tho thiab tho lub taub hau kub dissipation, uas ua rau tawg laum nozzle, ua rau PCB qhov tawg tsis pom kev. los yog leaky drilling tsis conductive.
2. PCB multilayer board hla lub qhov yuav nyob rau hauv txhua txheej ntawm txoj kab muaj lub nplhaib lub nplhaib, thiab txhua txheej ntawm lub nplhaib lub nplhaib nyob ib ncig ntawm ib puag ncig txawv, kuj tseem tsis tau pinched kab. PCB board Hoobkas CAM engineers nyob rau hauv qhov optimization ntawm cov ntaub ntawv, yuav muaj pinched kab dhau los ze heev los yog lub qhov thiab lub qhov ze ze rau lub qhov nplhaib txiav tawm ib feem ntawm cov ntaub ntawv, los xyuas kom meej tias lub vuam nplhaib rau txawv tes hauj lwm tooj liab / kab muaj ib tug kev nyab xeeb ntawm 3mil.
3. Drilling qhov kam rau ua yog Tsawg dua lossis sib npaug rau 0.05mm, thaum qhov kev kam rau siab ntawm qhov txwv ntawm lub rooj tsavxwm multilayer yuav tshwm sim cov xwm txheej hauv qab no.
(1) Thaum cov kab ntom ntom ntawm lub qhov mus rau lwm cov ntsiab lus 360 degree qhov tsis sib xws ntawm qhov khoob me me, txhawm rau kom muaj kev nyab xeeb ntawm 3mil, lub ncoo tuaj yeem tshwm sim ntau qhov kev taw qhia.
(2) raws li lub hauv paus ntaub ntawv xam, qhov ntug rau ntawm ntug ntawm kab 6mil, qhov nplhaib 4mil, lub nplhaib rau txoj kab tsuas yog 2mil, kom ntseeg tau tias lub nplhaib rau txoj kab ntawm kev nyab xeeb ntawm 3mil sib nrug yuav tsum tau txiav 1mil solder nplhaib, tom qab txiav lub ncoo tsuas yog 3mil. thaum lub qhov kam rau ua offset yog lub siab txwv ntawm 0.05mm (2mil), lub nplhaib lub nplhaib tsuas yog 1mil.
4. PCB ntau lawm yuav tshwm sim nyob rau tib qho kev taw qhia ntawm me me ntawm offset, cov kev taw qhia ntawm lub ncoo yog txiav irregularly, qhov phem tshaj tshwm sim kuj yuav ua rau ib tug neeg qhov tawg solder nplhaib.
5. PCB multilayer board nyob rau hauv qhov cuam tshuam ntawm cov xovxwm haum sib txawv. Rau-txheej board, piv txwv li, ob lub core board ntxiv rau cov ntawv ci tooj liab nias ua ke los tsim ib lub rooj tsav xwm rau-txheej. Nias txheej txheem, core board 1, core board 2 pressed ua ke tej zaum yuav muaj tsawg tshaj li los yog sib npaug rau 0.05mm sib txawv, nias ua ke tom qab lub puab txheej ntawm lub qhov yuav tshwm sim 360 degree tsis sib txawv.
Los ntawm cov teeb meem saum toj no xaus lus tias PCB punching tawm los thiab PCB pawg thawj coj ua haujlwm tau cuam tshuam los ntawm cov txheej txheem drilling. Yog tias lub nplhaib lub qhov me me dhau lawm thiab tsis muaj kev tiv thaiv tooj liab nyob ib puag ncig lub qhov, txawm hais tias PCB tuaj yeem dhau qhov kev sim qhib luv luv thiab kev siv cov khoom ua ntej yuav tsis muaj teeb meem, tab sis kev siv lub sij hawm ntev ntawm kev ntseeg siab tsis txaus. .
Yog li ntawd, ntau txheej PCB board, high-speed PCB board qhov rau lub qhov, lub qhov rau kab qhov kev pom zoo.
(1) multilayer board puab txheej qhov rau kab rau tooj liab.
4 txheej: tsis tu
6 txheej: Ntau dua lossis sib npaug li 6mil
8 txheej: Ntau dua lossis sib npaug li 7mil
10 txheej lossis ntau tshaj 10 txheej: Ntau dua lossis sib npaug li 8mil
(2) hla lub qhov hauv txoj kab uas hla ntug sib nrug.
Nrog lub network perforation: Ntau dua lossis sib npaug ntawm 8mil (0.2mm)
Sib txawv network perforation: Ntau dua lossis sib npaug rau 12mil (0.3mm)