Dab tsi yog qhov luam tawm Circuit Board?

PCB Trace Manufacturing Txheej txheem: Cov khoom siv, cov txheej txheem, thiab cov kev xav tseem ceeb

Kev tsim cov Printed Circuit Board (PCB) cov cim yog ib kauj ruam tseem ceeb hauv cov txheej txheem tsim khoom PCB. Cov txheej txheem no suav nrog ntau theem, los ntawm kev tsim qauv hauv Circuit Court mus rau qhov tseeb tsim ntawm cov kab, kom ntseeg tau tias cov khoom kawg ua tau zoo. Hauv qab no yog cov ncauj lus kom ntxaws txog cov khoom siv, cov txheej txheem, thiab cov ntsiab lus tseem ceeb uas cuam tshuam nrog kev tsim khoom.

1.Trace Design

Cov cuab yeej siv thiab cov txheej txheem:

• CAD Software:Cov cuab yeej zoo li Altium Designer, Eagle, thiab KiCAD yog qhov tseem ceeb rau kev tsim cov kab PCB. Lawv pab tsim cov duab kos duab thiab kev teeb tsa, optimizing lub rooj tsavxwm rau kev siv hluav taws xob thiab kev ua haujlwm.
• Gerber Cov Ntaub Ntawv:Tom qab tsim tiav, Gerber cov ntaub ntawv raug tsim tawm. Cov ntaub ntawv no yog cov qauv tsim rau PCB tsim, muaj cov ncauj lus kom ntxaws txog txhua txheej ntawm PCB.

Cov ntsiab lus tseem ceeb:

• Xyuas kom tus qauv tsim ua raws li cov qauv kev lag luam thiab ua raws li Cov Cai Tswj Xyuas Cov Cai (DRC) kom tsis txhob muaj qhov yuam kev.
• Optimize layout kom txo cov teeb liab cuam tshuam thiab txhim kho hluav taws xob ua haujlwm.
• Tshawb xyuas qhov tseeb ntawm Gerber cov ntaub ntawv los tiv thaiv teeb meem thaum tsim khoom.

2. Photolithography

Cov cuab yeej siv thiab cov txheej txheem:

• Photoplotter:Hloov CAD tsim rau hauv photomasks siv los hloov cov qauv kab mus rau PCB.
• Exposure Unit:Siv ultraviolet (UV) lub teeb los hloov cov duab npog cov qauv mus rau photoresist-coated copper-clad laminate.
• Tus tsim tawm:Tshem tawm qhov tsis pom kev photoresist, nthuav tawm cov kab ntawm tooj liab.

Cov ntsiab lus tseem ceeb:

• Xyuas kom meej meej ntawm photomasks nrog lub laminate kom tsis txhob muaj cov qauv sib txawv.
• Khaws ib puag ncig kom huv kom tsis txhob muaj plua plav thiab cov pa phem los ntawm kev cuam tshuam cov qauv hloov.
• Tswj lub sij hawm raug nthuav tawm thiab kev loj hlob kom tsis txhob muaj teeb meem ntau dhau los yog tsis muaj kev txhim kho.

3. txheej txheem etching

Cov cuab yeej siv thiab cov txheej txheem:

• Etching tshuab:Siv cov tshuaj daws teeb meem xws li ferric chloride lossis ammonium persulfate kom tshem tawm cov tooj liab uas tsis xav tau, tawm hauv cov kab hauv qab.
• Txau Etching:Muab cov etching zoo li qub thiab tsim nyog rau cov khoom siv PCB siab.

Cov ntsiab lus tseem ceeb:

• Saib xyuas etching kua concentration thiab kub kom paub meej etching uniform.
• Tsis tu ncua xyuas thiab hloov cov tshuaj etching kom muaj txiaj ntsig zoo.
• Siv cov cuab yeej tsim nyog kev nyab xeeb thiab qhov cua vim muaj kev phom sij ntawm cov tshuaj etching.

4. txheej txheem plating

Cov cuab yeej siv thiab cov txheej txheem:

• Electroless Plating:Deposits ib txheej nyias ntawm tooj liab rau ntawm qhov drilled thiab PCB nto, tsim cov kev coj ua.
• Electroplating:Thickens txheej tooj liab rau ntawm qhov chaw thiab hauv qhov, txhim kho conductivity thiab mechanical zog.

Cov ntsiab lus tseem ceeb:

• Xyuas kom huv si huv si thiab ua kom cov PCB nto ua ntej plating.
• Saib xyuas qhov muaj pes tsawg leeg thiab cov xwm txheej ntawm lub plating da dej kom ua tiav cov tuab tuab.
• Tsis tu ncua tshuaj xyuas cov plating zoo kom tau raws li cov kev cai tshwj xeeb.

5. Copper Lamination

Cov cuab yeej siv thiab cov txheej txheem:

• Lamination tshuab:Siv cov ntawv ci tooj liab rau PCB substrate los ntawm tshav kub thiab siab, ruaj cov txheej tooj liab.
• Kev ntxuav thiab kev npaj:Xyuas kom meej tias lub substrate thiab tooj liab ntawv ci nto yog huv si los txhim kho adhesion.

Cov ntsiab lus tseem ceeb:

• Tswj kub thiab siab kom ntseeg tau tias txawm adhesion ntawm tooj liab ntawv ci.
• Tsis txhob muaj npuas thiab wrinkles uas tuaj yeem cuam tshuam cov kab sib txuas thiab kev ntseeg tau.
• Ua kev kuaj xyuas zoo tom qab lamination kom ntseeg tau tias muaj kev sib luag thiab kev ncaj ncees ntawm txheej tooj liab.

6. Drilling

Cov cuab yeej siv thiab cov txheej txheem:

• CNC Drilling Tshuab:Precisely drills qhov rau vias, mounting qhov, thiab los ntawm lub qhov, haum rau ntau qhov ntau thiab tsawg thiab qhov tob.
• Drill Bits:Feem ntau ua los ntawm tungsten carbide, cov khoom no yog ruaj thiab meej.

Cov ntsiab lus tseem ceeb:

• Tsis tu ncua tshuaj xyuas thiab hloov cov laum khoom kom tsis txhob muaj qhov tsis raug hauv qhov drilling.
• Tswj drilling ceev thiab pub tus nqi los tiv thaiv kev puas tsuaj rau cov khoom siv PCB.
• Siv cov cuab yeej tshuaj ntsuam xyuas kom paub tseeb qhov tseeb qhov chaw thiab qhov ntev.

7.Ntxuav thiab kuaj zaum kawg

Cov cuab yeej siv thiab cov txheej txheem:

• Cov cuab yeej ntxuav:Tshem tawm cov tshuaj seem thiab cov khoom paug tawm ntawm PCB nto, ua kom huv si.
• Kev soj ntsuam zaum kawg:Ua manually los txheeb xyuas qhov tseeb thiab tag nrho qhov zoo.

Cov ntsiab lus tseem ceeb:

• Siv cov tshuaj ntxuav kom tsim nyog thiab cov hau kev kom tsis txhob muaj kev puas tsuaj rau PCB.
• Xyuas kom meej qhov kev soj ntsuam zaum kawg txhawm rau txheeb xyuas thiab daws txhua qhov tsis xws luag.
• Khaws cov ntaub ntawv ntxaws ntxaws thiab daim ntawv lo rau kev taug qab ntawm txhua pawg.

Xaus

Kev tsim khoom ntawm PCB kab yog ib txoj kev nyuaj thiab meej uas yuav tsum tau siv cov cuab yeej tshwj xeeb thiab ua tib zoo saib xyuas kom meej. Txhua kauj ruam, los ntawm kev tsim qauv mus rau kev tsim cov kab ke, yuav tsum tau ua tiav nrog cov neeg raug siab kom ntseeg tau qhov zoo thiab kev ntseeg siab ntawm PCB kawg. Los ntawm kev ua raws li cov kev coj ua zoo tshaj plaws thiab kev tswj xyuas kev tswj xyuas zoo, cov tuam txhab tsim khoom tuaj yeem tsim cov PCBs uas ua tau raws li cov qauv kev ua tau zoo thiab ua haujlwm ntev, ua tiav cov kev xav tau ntawm ntau yam kev siv hluav taws xob.