Daim ntawv no suav nrog qee cov lus qhia kev tshaj lij thiab cov lus piav qhia rau kev sib dhos kab ua haujlwm ntawmSMT tshuab.
1. PIB
Printed Circuit Board Assembly (PCBA) yog hais txog cov txheej txheem uas PCB boards tau ua tiav thiab tsim khoom, suav nrog Cov Ntawv Sau SMT strips, DIP plugins, kev sim ua haujlwm, thiab cov khoom tiav los ua ke.
2. PCB pawg thawj coj saib
Printed Circuit Board (PCB) yog ib lub sij hawm luv luv rau Printed Circuit Board, feem ntau muab faib ua ib lub vaj huam sib luag, ob chav vaj huam sib luag thiab ntau txheej txheej.Cov khoom siv feem ntau suav nrog FR-4, resin, iav fiber ntau daim ntaub thiab txhuas substrate.
3. Gerber cov ntaub ntawv
Gerber cov ntaub ntawv feem ntau piav qhia txog kev sau cov ntaub ntawv ntawm PCB duab (kab txheej, txheej txheej txheej txheej, cov cim txheej, thiab lwm yam) cov ntaub ntawv drilling thiab milling, uas yuav tsum tau muab rau PCBA ua cov nroj tsuag thaum PCBA hais.
4. BOM file
Cov ntaub ntawv BOM yog cov npe ntawm cov ntaub ntawv.Txhua cov ntaub ntawv siv hauv PCBA ua, suav nrog cov khoom siv ntau thiab cov txheej txheem, yog lub hauv paus tseem ceeb rau kev yuav khoom.Thaum PCBA tau hais, nws kuj yuav tsum tau muab rau PCBA ua cov nroj tsuag.
5. SMT
SMT yog cov ntawv luv ntawm "Surface Mounted Technology", uas yog hais txog cov txheej txheem ntawm solder paste printing, daim ntawv cov khoom mounting thiabreflow qhov cubsoldering ntawm PCB board.
6. Solder paste tshuab luam ntawv
Lub solder paste luam ntawv yog txheej txheem ntawm kev muab cov tshuaj pleev xim rau ntawm cov hlau nplaum, xau cov nplaum nplaum los ntawm lub qhov ntawm cov hlau net los ntawm scraper, thiab raug luam tawm cov tshuaj pleev xim rau ntawm PCB ncoo.
7. SPI
SPI yog ib tug solder paste thickness detector.Tom qab solder paste luam ntawv, SIP yuav tsum tau kuaj xyuas qhov teeb meem luam ntawv ntawm solder paste thiab tswj cov kev luam ntawv ntawm cov tshuaj txhuam.
8. Reflow vuam
Reflow soldering yog muab pasted PCB rau hauv lub reflow solder tshuab, thiab los ntawm qhov kub siab nyob rau hauv, lub paste solder paste yuav tsum rhuab mus rau hauv cov kua, thiab thaum kawg lub vuam yuav ua tiav los ntawm txias thiab solidification.
9. UAS
AOI hais txog qhov tsis siv neeg kho qhov muag pom.Los ntawm kev sib piv scanning, vuam cov nyhuv ntawm PCB board tuaj yeem kuaj pom, thiab qhov tsis xws ntawm PCB board tuaj yeem kuaj pom.
10. Kho
Txoj cai ntawm kev kho AOI lossis manually kuaj xyuas cov laug cam.
11. PIB
DIP luv luv rau "Dual In-line Package", uas yog hais txog kev ua cov cuab yeej ntawm kev ntxig cov khoom nrog cov pins rau hauv PCB pawg thawj coj saib, thiab tom qab ntawd ua lawv los ntawm yoj soldering, ko taw txiav, tom qab soldering, thiab phaj ntxuav.
12. Wave soldering
Wave soldering yog ntxig rau PCB rau hauv lub nthwv dej ntawm lub qhov cub, tom qab tshuaj tsuag flux, preheating, yoj soldering, txias thiab lwm yam txuas kom tiav cov vuam ntawm PCB pawg thawj coj saib.
13. Txiav cov khoom
Txiav cov khoom ntawm lub welded PCB board rau qhov loj me.
14. Tom qab vuam ua tiav
Tom qab vuam txheej txheem yog los kho vuam thiab kho cov PCB uas tsis yog welded tag nrho tom qab kuaj xyuas.
15. Ntxuav daim hlau
Lub tshuab ntxhua khaub ncaws yog los ntxuav cov khoom seem uas tsis zoo xws li flux ntawm cov khoom tiav ntawm PCBA kom ua tau raws li kev tiv thaiv ib puag ncig tus qauv kev huv uas xav tau los ntawm cov neeg siv khoom.
16. Peb cov tshuaj tua kab mob
Peb cov tshuaj pleev xim pleev xim yog tshuaj tsuag txheej txheej tshwj xeeb ntawm PCBA tus nqi board.Tom qab kho, nws tuaj yeem ua si qhov kev ua tau zoo ntawm rwb thaiv tsev, pov thawj noo noo, pov thawj to, pov thawj poob siab, pov thawj plua plav, pov thawj corrosion, pov thawj kev laus, pov thawj mildew, qhov chaw xoob thiab rwb thaiv tsev corona.Nws tuaj yeem txuas ntxiv lub sijhawm cia ntawm PCBA thiab cais tawm sab nraud kev yaig thiab muaj kuab paug.
17. Vuam phaj
Tig dhau yog PCB nto widened hauv zos ua, tsis muaj rwb thaiv tsev xim npog, yuav siv tau rau vuam Cheebtsam.
18. Encapsulation
Ntim yog hais txog ib txoj kev ntim khoom ntawm cov khoom, ntim khoom feem ntau muab faib ua DIP ob chav - kab thiab SMD thaj ntim ob.
19. Pin sib nrug
Pin spacing yog hais txog qhov kev ncua deb ntawm cov kab nruab nrab ntawm cov pins uas nyob ib sab ntawm lub mounting tivthaiv.
20. QWB
QFP yog luv luv rau "Quad Flat Pack", uas yog hais txog ib qho chaw sib sau ua ke hauv ib lub hnab yas nyias nrog cov airfoil luv ua rau plaub sab.
Lub sij hawm xa tuaj: Plaub Hlis-09-2021