Xaiv PCB

n Tus qauv tsim thiab tsim cov txheej txheem ntawm cov khoom siv hluav taws xob, xaiv cov khw muag khoom tsim nyog Circuit Court (PCB) yog qhov tseem ceeb. Raws li cov tseem ceeb tivthaiv ntawm cov khoom siv hluav taws xob, tsis tsuas yog nqa cov khoom siv hluav taws xob tab sis kuj cuam tshuam nrog cov khoom lag luam, thiab kev ntseeg tau. Kab lus no tshawb nrhiav yuav ua li cas scorifically xaiv pcb cov ntaub ntawv los ntawm cov kev xav ntawm tus nqi thiab kev ntseeg tau.

I. Cov kev txiav txim siab

Xaiv cov khoom siv yooj yim:

Tooj Liab Ntawv Nyiaj Thickness: Thicker tooj liab ntawv ci muaj cov hluav taws xob zoo dua tab sis ntawm tus nqi siab dua. Xaiv ib qho tsim nyog tooj liab tshuab thickness raws li cov kev xav tau tam sim no tuaj yeem ua kom tau raws li kev xav tau thaum tswj cov nqi.

Substrate Hom: Fr -4 (Fiberglass-FaserCed Epoxy Resined Epiny Resin) yog ib qho kev ua haujlwm tsawg, ua haujlwm siab substrate haum rau feem ntau cov ntawv thov. Txog kev xav tau tshwj xeeb, xws li cov ntawv thov siab, txiav txim siab siv cov khoom siv siab zoo li polytetrrafluoroethylene (PTFE).

Cov Txheej Txheem Txheej Txheem Txhim Kho:

Tus naj npawb ntawm txheej thiab cov nyom: Thaum hov multilayer cov laug cam tuaj yeem muab cov qauv tsim hluav taws xob ntau ntxiv, lawv nce tus nqi. Txiav txim siab tus naj npawb ntawm pcb txheej pcb raws li kev xav tau tiag tiag kom tsis txhob muaj kev tsim qauv.

Nto Kho: Cov txheej txheem kev kho kom zoo xws li Hasl (auv yas soluthabs), thiab enig (cov nqi kub thiab cov nqi sib txawv, nrog cov nqi sib txawv. Xaiv txoj cai kev kho sab saum npoo av ua kom muaj kev sib tw zoo thaum tswj cov nqi.

Txheeb cov kev yuav khoom thiab cov khoom lag luam: Txheeb kev yuav cov nyiaj cheb, tab sis nws yuav tsum tau cov nqi ua cov khoom ua haujlwm thiab cov haujlwm peev txheej. Tsim cov phiaj xwm kev yuav khoom uas tsim nyog kom tsis txhob muaj cov khoom lag luam ntxiv.

Ii. Kev ntseeg tau

Thermal Performance:

Xaiv substrates nrog lub siab tg (cov ntsuas kub hloov kho tshiab) kom txhim kho pcb ruaj khov nyob hauv ib puag ncig kub.

Xav txog CTE (coefficient ntawm thermal expansion) sib piv kom ntseeg tau tias zoo sib txuas ntawm PCB thiab cov khoom siv thaum lub sijhawm hloov kub.

Kev Ua Hluav Taws Xob Hluav Taws Xob:

Nco ntsoov tias PCB khoom siv hluav taws xob, xws li rwb thaiv tsev tsis kam, thiab kev tsim qauv tsim, tshwj xeeb yog cov ntawv thov siab.

NEEG KHO TSHUAB ZOG THIAB DISETAST:

Xaiv cov ntaub ntawv nrog cov khoom siv zoo thiab cuam tshuam kev tiv thaiv kom tsis taus cov neeg kho tshuab ua haujlwm thaum sib dhos.

Xav txog lub sijhawm ntev siv ntawm PCB, xws li cov av noo thiab tshuaj lom neeg, thiab xaiv cov ntaub ntawv nrog cov huab cua kev tiv thaiv.

Raws li tus kws tshaj lij EMS (cov kev pabcuam hluav taws xob tshwj xeeb hauv PCBA hluav taws xob hauv tshuab hluav taws xob, cov txiaj ntsig hluav taws xob hauv cov khoom siv hluav taws xob. Peb muaj cov cuab yeej tsim khoom ntau dua thiab cov pab pawg ua tau zoo ntawm kev muab cov kev pabcuam nrog ib-nres los ntawm kev sib dhos los kuaj thiab xa khoom. Ib qho ntxiv, peb tsom mus rau kev siv thev naus laus zis thiab kev tswj hwm zoo los xyuas kom meej tias txhua qhov kev them cov khoom lag luam ua tau raws cov qauv thoob ntiaj teb.