Taw qhia
Thaum lub sijhawm tsim khoom PCBA, ntau lub tuam txhab tsom mus rau qhov chaw tso khoom tawm, qhov ua tau zoo, thiab kev ua haujlwm ntawm cov khoom siv, tseem tsis tau saib xyuas cov ntsiab lus tseem ceeb uas cuam tshuam ncaj qha rau kev ua tau zoo tom qab- kev muag khoom kho: silkscreen layout. Rau kev kho engineers, PCBA tsis muaj cov cim silkscreen meej feem ntau txhais tau hais tias lub sij hawm daws teeb meem ntev dua, qhov muaj feem ntau ntawm kev kuaj mob tsis raug, thiab nce tom qab - cov nqi muag khoom. Qhov no yog qhov tseeb tshwj xeeb rau cov khoom lag luam xws li kev tswj hwm kev lag luam, cov khoom siv hluav taws xob, thiab cov khoom siv sib txuas lus, qhov chaw kho qhov ua tau zoo poob qis yog tias cov khoom tsis tuaj yeem nyob rau ntawm - site. Silkscreen marking tsis yog ib pawg ntawm cov cim ntawm PCB. Nws yog, hauv qhov tseem ceeb, ib feem tseem ceeb ntawm PCBA's post-kev txij nkawm kev tsim khoom.
Vim li cas Silkscreen Layout cuam tshuam rau Post-Kev Kho Kev Muag Khoom?
Ntau tus kws tshaj lij R & D, thaum lub sijhawm teeb tsa, tsuas yog tsom rau "tsim txhua yam hauv" yam tsis tau tshuaj xyuas cov qauv siv silkscreen los ntawm kev kho qhov muag. Hauv kev tsim khoom PCBA tiag tiag, cov teeb meem feem ntau ntsib tom qab- cov neeg muag khoom suav nrog:
- Cov naj npawb tsis pom los ntawm lwm cov khoom
- Kev coj tus cwj pwm tsis sib haum
- Silkscreen ntawv me me dhau los nyeem
- Cov ntsiab lus xeem tseem ceeb tsis muaj cov ntawv sau
- Sib tshooj thiab tsis meej pem cov lej ntawm ob - sab laug
Cov teeb meem no ncaj qha nce lub sijhawm xav tau rau qhov chaw nyob. Tshwj xeeb tshaj yog nyob rau hauv - qhov chaw kho qhov chaw, cov engineers feem ntau tsis ua tiav cov ntaub ntawv Gerber thiab schematics, yuam kom lawv cia siab rau ib leeg rau ntawm silkscreen ntawm PCB nto rau kev soj ntsuam ceev.
Clarity of Part Numbers tseem ceeb dua qhov muaj
Ntau tus PCBA tsim sim "tso tawm tag nrho cov lej tag nrho" los ntawm cov cim ntim ntim ua ke, uas ua rau poob ntawm kev nyeem ntawv.
1. Ua ntej pom qhov tseem ceeb ntawm qhov tseem ceeb ntawm cov lej, xws li ICs, fais fab modules, MOSFETs, fuses, interface connectors, thiab cov ntsiab lus xeem. Cov khoom siv no tau siv ntau zaus thaum kho, yog li lawv cov duab silkscreen yuav tsum tau ua ntej. Rau cov khoom me me xws li 0402 thiab 0201, cov zaub ntawm qee tus lej tuaj yeem raug txo kom tsim nyog kom tsis txhob cuam tshuam tag nrho.
2. Tsis txhob muaj cov ntawv silkscreen zais los ntawm cov khoom. Hauv ntau lub rooj sib tham PCBA, cov cim raug thaiv tag nrho los ntawm cov khoom tom qab kev tsim khoom, yuam cov kws kho mob kom tshem tawm lub rooj tsavxwm kom paub tseeb cov lej.
Cov kev coj ua zoo tshaj plaws feem ntau suav nrog:
- Muab cov lej nyob ib ncig ntawm qhov chaw ntawm cov khoom
- Standardizing tus cwj pwm sib nrug
- Tsis txhob muab tso rau ntawm cov ntaub qhwv los yog cov stencil
Qhov no ua kom ntseeg tau tias cov lej feem tseem pom meej meej txawm tias tom qab cov khoom raug soldered.
3. Standardize tus cwj pwm orientation
Thaum lub sij hawm ntawm - kho qhov chaw, kev taw qhia tus cwj pwm tsis sib haum tuaj yeem ua rau qhov chaw ua haujlwm qeeb qeeb.
Cov lus pom zoo:
- Standardize tus cwj pwm orientation nyob rau hauv tib cheeb tsam
- Ua ntej qhov kev nyeem ntawv kab rov tav thoob plaws lub rooj tsavxwm
- Tsis txhob random 180℃rotations
Thaum cov kws kho cov kws kho mob tshawb nrhiav cov lej ntawm qhov siab -PCBs ceev, kev taw qhia tus qauv yuav txo qhov pom kev cuam tshuam.
Dab tsi Silk Screen Cov ntaub ntawv xav tau tiag tiag ntawm qhov chaw kho?
Ntau tus qauv PCBA yog cluttered nrog cov cim, tab sis cov ntaub ntawv tseem ceeb rau kev kho feem ntau tsis tiav.
1. Lub zog thiab lub teeb liab qhia kev taw qhia, nrog rau kev sib txuas thiab lub zog tawm tswv yim / tso tawm cov lus qhia, yuav tsum tau sau kom meej meej:
- VIN
- GND
- TX/RX
- USB kev taw qhia
- Pin 1 qhov chaw
Cov ntsuas no pab kho cov kws kho mob sai sai soj ntsuam cov qauv hauv Circuit Court.
2. Test Point (TP) Numbering
Ntau tom qab-Kev tshuaj xyuas muag yog nyob ntawm kev sim nrog oscilloscopes lossis multimeters. Yog tias cov ntsiab lus xeem tsis muaj TP tus lej, cov kws kho mob yuav tsum tshawb nrhiav lawv ib qho los ntawm kev xa mus rau schematic. Standardized PCBA manufacturing tej yaam num feem ntau:
Standardize TP naming conventions
Khaws cov txhob lo lo ntxhuav ntshiab - npo luam ntawv nyob ze cov ntsiab lus kuaj
Tsis txhob muaj kev sojntsuam tsis pom cov cim
Polarity thiab Orientation Markings
Rau cov khoom xws li electrolytic capacitors, diodes, thiab ICs, kev taw qhia tsis raug yog ib qho ntawm qhov tsis ua haujlwm. Yog hais tias lub polarity silkscreen tsis meej, nws ua rau muaj kev pheej hmoo ntawm kev hloov khoom siv tsis raug.
Yuav Ua Li Cas Ntsuas Silkscreen thiab Qhov Chaw ntawm High -Density PCBs?
Raws li cov khoom ua me me, ntau tus engineers ntseeg tias "tsis muaj chaw rau silkscreen." Nyob rau hauv qhov tseeb, siab - ntom ntom boards yuav tsum tau ntau optimized silkscreen logic.
1. Tso tus lej PIN los ntawm Cheeb Tsam
Cov lej tuaj yeem raug nteg tawm los ntawm cov khoom siv ua haujlwm es tsis yog sib kis sib npaug thoob plaws lub rooj tsavxwm.
Piv txwv li:
- Thaj chaw muab hluav taws xob
- Kev sib txuas lus cheeb tsam
- Chaw tsav tsheb
- Sensor cheeb tsam
Ib qho zoned layout txhim kho kho thiab tiv thaiv qhov chaw ua haujlwm.
2. Siv cov txheej hauv qab rau cov cim cim. Rau PCBs nrog qhov chaw tsis txaus ntawm txheej txheej saum toj kawg nkaus, cov lej pabcuam tuaj yeem muab ntxiv rau hauv qab txheej. Ntau lub tuam txhab tswj hwm kev lag luam twb tau txais kev daws teeb meem "dual-txheej txheej silkscreen".
3. Kev koom ua ke nrog QR Code Management
Rau qee qhov kev ua haujlwm PCBA nyuaj, QR cov lej tau ntxiv los txuas rau kho cov duab kos. Tom qab luam theej duab cov cai, kho cov kws kho mob tuaj yeem saib ncaj qha:
- Kev faib tawm tus lej
- BOM cov ntaub ntawv
- Cov lus qhia kuaj
- Kho cov ntaub ntawv
Txoj hauv kev no maj mam dhau los ua tus txheej txheem hauv tom qab - kev muag khoom rau cov khoom siv hluav taws xob siab - kawg.
The PCBA Manufacturing Stage kuj cuam tshuam rau Silkscreen Readability
Ntau pawg R & D tsom nkaus rau ntawm kev tsim qauv thaum saib xyuas qhov cuam tshuam ntawm kev tsim cov txheej txheem ntawm silkscreen nyeem tau.
1. Kev xaiv xim ntawm tus cwj mem cuam tshuam rau kev nyeem ntawv
Cov cim dawb luam tawm nrog tus cwj mem ntsuab yog qhov yooj yim nyeem. Siv qhov tsaus nti- xim txhob lo lo ntxhuav luam ntawv ntawm lub PCB dub yuav txo qhov kev nyeem tau zoo thaum kho.
2. Cov cim uas nyias dhau yog qhov ua rau muaj qhov tsis xws luag
Qee cov cim me me yuav tshwm sim tawg lossis plooj thaum lub sijhawm PCBA tsim thiab luam ntawv.
Cov lus pom zoo dav dav:
- Tus cwj pwm kab dav Ntau dua lossis sib npaug li 0.12 hli
- Lub cim qhov siab Ntau dua lossis sib npaug li 0.8 hli
Qhov no txhim kho qhov sib xws hauv kev tsim khoom loj.
3. Tsis txhob muab cov cim tso rau hauv qhov chaw stencil aperture. Yog tias lub vijtsam - cov ntawv luam tawm txuas mus rau thaj chaw ncoo, nws yooj yim rau kev puas tsuaj lossis ua tiav ploj tom qab reflow soldering.
Tiag tiag Mature PCBA tsim xav txog cov khoom lag luam tag nrho lub neej
Ntau lub tuam txhab tsom mus rau "kev tsim khoom," tab sis paub tab PCBA tsim ib txhij txiav txim siab:
- Ntau lawm efficiency
- Kev ntsuam xyuas efficiency
- Tshaj tawm - kev muag khoom kho kom zoo
- Ntev - tus nqi tu lub sij hawm
Ib qho zoo -txheej txheem silk screen layout tej zaum yuav tsis txhim kho cov khoom ua tau zoo, tab sis nws tuaj yeem txuag lub sij hawm tseem ceeb thiab nqi zog thaum lub sij hawm tu tom ntej. Tshwj xeeb tshaj yog rau huab hwm coj- cov khoom tsim tawm, cov nqi txuag tau los ntawm kev txhim kho kev txhim kho yog qhov tseem ceeb heev.
Hauv kev tsim PCBA, qhov zoo tshaj plaws silk screen layout tsis tsuas yog txhawb kev tsim khoom, tab sis kuj txhawb kev saib xyuas thiab kho cov khoom rau xyoo tom ntej. Kev tsim qauv tiag tiag yog feem ntau xav txog hauv cov ntsiab lus yooj yim saib xyuas.
Cov ntaub ntawv ceevhais txog NeoDen
- Tsim los ntawm 2010 nrog 100+ cov neeg ua haujlwm & 8000+ Sq.m. Hoobkas ntawm cov cuab yeej ywj pheej, kom ntseeg tau tus qauv kev tswj hwm thiab ua tiav cov txiaj ntsig kev lag luam zoo tshaj plaws thiab txuag tus nqi.
- Muaj tus kheej lub chaw machining, txawj sib dhos, tester thiab QC engineers, los xyuas kom meej lub peev xwm muaj zog rau NeoDen tshuab tsim, zoo thiab xa.
- 40+ cov neeg koom tes thoob ntiaj teb suav nrog hauv Asia, Europe, Amelikas, Oceania thiab Africa, kom ua tiav kev pabcuam 10000+ cov neeg siv thoob plaws ntiaj teb, kom ntseeg tau tias cov kev pabcuam hauv zos zoo dua thiab nrawm dua thiab teb sai.
- 3 pawg R&D sib txawv nrog rau tag nrho 25+ cov kws tshaj lij R&D engineers, kom ntseeg tau tias qhov kev txhim kho zoo dua thiab siab dua thiab kev tsim kho tshiab.
- Cov kws tshaj lij thiab cov kws tshaj lij Askiv txhawb nqa & kev pabcuam engineers, kom paub meej cov lus teb sai li sai tau hauv 8 teev, kev daws teeb meem muab hauv 24 teev.
- Ib qho tshwj xeeb ntawm tag nrho cov tuam txhab hauv Suav teb uas tau tso npe thiab pom zoo CE los ntawm TUV NORD.
- NeoDen muab lub neej- ntev kev txhawb nqa thiab kev pabcuam rau txhua lub tshuab NeoDen, ntxiv rau, kev hloov kho software tsis tu ncua raws li kev siv cov kev paub dhau los thiab kev thov niaj hnub los ntawm cov neeg siv khoom.