Xaiv cov khoom tsim nyog rau ntau yam PCB

Hauv tsab ntawv tshaj tawm no, peb yuav tham txog cov ntsiab lus tseem ceeb thiab cov lus qhia rau kev xaiv cov ntaub ntawv zoo tshaj plaws rau ntau yam PCB.

Thaum tsim thiab tsim cov khoom siv hluav taws xob ntau, ib qho tseem ceeb tshaj plaws uas yuav tsum tau xav txog yog xaiv cov ntaub ntawv zoo. Xaiv cov ntaub ntawv tsim nyog rau lub rooj tsav xwm multilayer, nrog rau cov khoom siv substrate thiab tooj liab, tuaj yeem cuam tshuam qhov kev ua tau zoo thiab kev ntseeg siab ntawm cov khoom kawg.

Nkag siab lub luag haujlwm ntawm substrate

Cov khoom siv hauv paus yog lub hauv paus ntawm multifunctional circuit boards. Nws ua lub luag haujlwm tseem ceeb hauv kev muab kev txhawb nqa txhua yam, hluav taws xob rwb thaiv tsev thiab cua sov dissipation nyob rau hauv lub rooj tsav xwm Circuit Court. Yog li ntawd, xaiv txoj cai substrate yog ib qho tseem ceeb los xyuas kom meej lub zuag qhia tag nrho kev cia siab thiab functionality ntawm lub Circuit Court board.

Thaum xaiv ib lub substrate rau lub rooj tsavxwm multilayer, muaj ntau yam los xav txog. Cov feem ntau siv substrates muaj xws li FR-4, polyimide thiab ceramic cov ntaub ntawv. Txhua yam khoom muaj cov khoom tshwj xeeb thiab cov txiaj ntsig kom haum rau cov kev xav tau sib txawv ntawm Circuit Board.

1. Qauv TSIS MUAJ: FR-4FR-4 yog ib qho siv dav hauv substrate paub txog nws cov khoom siv hluav taws xob zoo heev thiab lub zog txhua yam. Nws muaj ib txheej nyias ntawm epoxy resin reinforced fiberglass. FR-4 yog tus nqi-zoo, yooj yim muaj, thiab haum rau feem ntau cov ntawv thov. Txawm li cas los xij, vim nws qhov siab dielectric tas li thiab poob tangent, nws yuav tsis haum rau kev tsim hluav taws xob ntau zaus.

2. Polyimide:Polyimide yog qhov zoo tagnrho rau cov ntawv thov uas xav tau kev hloov pauv, kub tsis kam, thiab tshuaj tiv thaiv zoo heev. Nws yog cov khoom siv thermoplastic uas tuaj yeem tiv taus kev ua haujlwm hnyav. Polyimide circuit boards feem ntau siv nyob rau hauv aerospace, automotive thiab kev kho mob kev lag luam uas lub teeb yuag thiab compact designs yog ib qho tseem ceeb.

3. Cov khoom siv ceramic:Rau cov ntawv thov tshwj xeeb uas xav tau cov thermal conductivity thiab cov hluav taws xob zoo heev, cov ntaub ntawv ceramic xws li aluminium nitride lossis aluminium oxide yog thawj qhov kev xaiv. Cov ntaub ntawv no muaj cov khoom siv thermal zoo thiab tuaj yeem ua haujlwm siab zog.

Ntsuas Cov Kev Xaiv Copper Cladding

Copper clad foil ua raws li cov txheej txheem ua haujlwm nyob rau hauv multilayer circuit boards. Nws muab cov kab hluav taws xob thiab kev sib txuas ntawm cov khoom sib txawv thiab cov khoom siv hluav taws xob. Thaum xaiv tooj liab clad ntawv ci, muaj ob yam tseem ceeb los xav txog: ntawv ci thickness thiab hom nplaum.

1.Ntawv nyiaj thickness:Copper clad ntawv ci los ntawm cov thicknesses sib txawv, feem ntau yog li ntawm 1 ooj mus rau 6 ooj. Thickness txiav txim siab lub peev xwm nqa tam sim no ntawm Circuit Board. Thicker foil tuaj yeem ua haujlwm ntau dua tam sim no tab sis yuav raug txwv hauv kev ua tiav cov kab dav dav thiab qhov sib txawv. Yog li ntawd, nws yog ib qho tseem ceeb rau kev ntsuam xyuas cov kev cai tam sim no ntawm Circuit Court thiab xaiv cov ntawv ci tuab uas yuav ua tau raws li qhov xav tau tam sim no.

2.Adhesive hom:Copper clad ntawv ci nrog acrylic los yog epoxy nplaum. Acrylic adhesive foils yog ntau tus phooj ywg ib puag ncig, yooj yim rau kev ua thiab raug nqi. Epoxy adhesive foils, ntawm qhov tod tes, muab cov thermal stability zoo dua, tshuaj tiv thaiv, thiab adhesion. Kev xaiv ntawm hom nplaum yog nyob ntawm qhov kev xav tau tshwj xeeb ntawm daim ntawv thov.

Optimize cov txheej txheem xaiv cov khoom

Txhawm rau txhim kho cov txheej txheem xaiv cov khoom siv rau ntau lub rooj tsav xwm hauv Circuit Court, cov lus qhia hauv qab no yuav tsum tau xav txog:

1. Txiav txim siab txog daim ntawv thov:Nws yog ib qho tseem ceeb kom nkag siab txog qhov chaw ua haujlwm, qhov kub thiab txias, kev nyuaj siab, thiab lwm yam kev mob tshwj xeeb rau daim ntawv thov. Cov ntaub ntawv no yuav qhia txog kev xaiv cov khoom siv uas tuaj yeem tiv taus qhov yuav tsum tau ua.

2.Ua haujlwm nrog cov neeg siv khoom:Kev sab laj nrog ib tus kws tshaj lij cov khoom lag luam lossis cov chaw tsim khoom PCB tuaj yeem muab kev nkag siab zoo rau kev xaiv cov khoom tsim nyog tshaj plaws. Lawv tuaj yeem muab cov lus qhia raws li lawv cov kev txawj ntse thiab kev paub txog kev nce qib tshiab hauv cov khoom siv hauv Circuit Court.

3. Ntsuas Tus Nqi thiab Muaj:Txawm hais tias kev ua tau zoo thiab kev ntseeg siab yog qhov tseem ceeb, nws yog ib qho tseem ceeb rau kev txiav txim siab txog tus nqi thiab muaj cov khoom xaiv. Xyuas kom meej tias cov ntaub ntawv xaiv tau raug nqi thiab yooj yim muaj nyob rau hauv qhov xav tau.

Hauv cov ntsiab lus

Xaiv cov ntaub ntawv tsim nyog rau ntau lub PCBs yog ib kauj ruam tseem ceeb hauv kev ua kom muaj kev ua haujlwm, kev ntseeg siab thiab kev ua tau zoo ntawm cov khoom kawg. Kev nkag siab txog lub luag haujlwm ntawm substrate thiab tooj liab cladding, ntsuam xyuas cov kev xaiv raws li cov kev xav tau tshwj xeeb, thiab kev ua kom zoo ntawm cov txheej txheem xaiv yuav pab cov neeg tsim khoom thiab cov neeg tsim khoom ua tiav cov txiaj ntsig zoo tshaj plaws. Los ntawm kev xav txog cov lus qhia no, engineers tuaj yeem ntseeg siab xaiv cov ntaub ntawv raug rau ntau lub rooj tsav xwm hauv Circuit Court, ua rau cov khoom tsim tau zoo thiab siv tau ntev.