Ob chav Sab Rigid SMT PCB los ua ke Circuit Board
Khoom Paub meej
| Quote&Production Requirement | Gerber ntaub ntawv los yog PCB ntaub ntawv rau liab qab PCB Board Fabrication |
| Bom (Bill of Material) rau Assembly, PNP (Pick thiab Place file) thiab Cheebtsam txoj haujlwm tseem xav tau hauv kev sib dhos | |
| Txhawm rau txo lub sijhawm tsocai, thov muab peb tus lej tag nrho rau txhua qhov khoom, Quantity per board kuj kom muaj nuj nqis rau kev txiav txim. | |
| Test Guide & Function Test method kom paub tseeb tias qhov zoo mus txog ze li ntawm 0% seem seem | |
| Kev pabcuam OEM / ODM / EMS | PCBA, PCB sib dhos: SMT & PTH & BGA |
| PCBA thiab enclosure tsim | |
| Cov khoom sib xyaw ua ke thiab kev yuav khoom | |
| Ceev prototyping | |
| Yas txhaj molding | |
| Hlau ntawv stamping | |
| Kev sib dhos zaum kawg | |
| Kev Xeem: AOI, Kev Xeem Hauv Circuit Court (ICT), Kev Xeem Ua Haujlwm (FCT) | |
| Kev cai clearance rau cov khoom importing thiab cov khoom exporting |
Peb Cov Txheej Txheem
1. Cov txheej txheem kub immersion: Lub hom phiaj ntawm cov txheej txheem kub immersion yog tso nyiaj npib tsib xee-kub txheej nrog cov xim ruaj khov, zoo ci ntsa iab, cov txheej txheem du thiab zoo solderability rau ntawm qhov chaw ntawm PCB, uas tuaj yeem muab faib ua plaub theem: pretreatment. (Degreasing, micro-etching, activation, post-dipping), immersion npib tsib xee, immersion kub, tom qab kho, (khoom kub ntxuav, DI ntxuav, ziab).
2. Lead-sprayed tin: Cov hlau lead-muaj eutectic kub yog qis dua li cov hlau tsis muaj hlau lead.Tus nqi tshwj xeeb nyob ntawm qhov muaj pes tsawg leeg ntawm cov hlau tsis muaj hlau lead.Piv txwv li, eutectic ntawm SNAGCU yog 217 degrees.Lub soldering kub yog eutectic kub ntxiv rau 30-50 degrees, nyob ntawm seb muaj pes tsawg leeg.Kev hloov kho tiag tiag, cov coj eutectic yog 183 degrees.Mechanical zog, ci ntsa iab, thiab lwm yam txhuas txhuas zoo dua cov hlau lead-dawb.
3. Lead-free tin spraying: Cov hmoov txhuas yuav txhim khu kev ua haujlwm ntawm cov hlau tin hauv cov txheej txheem vuam.Cov hlau lead tin hlau yog yooj yim dua rau siv dua li cov hlau lead-dawb tin hlau, tab sis cov hlau lead yog tshuaj lom, thiab nws tsis zoo rau tib neeg lub cev yog tias nws siv sijhawm ntev.Thiab cov hlau tsis muaj hlau lead yuav muaj qhov taw qhia ntau dua li cov hlau lead-tin, kom cov pob qij txha muaj zog ntau dua.
Cov txheej txheem tshwj xeeb ntawm PCB ob-sided circuit board txheej txheem tsim khoom
1. CNC drilling
Txhawm rau kom cov kev sib dhos ntom ntom ntom, lub qhov ntawm ob-ob-sided Circuit Court board ntawm PCB tau txais me dua thiab me dua.Feem ntau, ob-sided pcb boards yog drilled nrog CNC drilling tshuab los xyuas kom meej qhov tseeb.
2. Electroplating qhov txheej txheem
Cov txheej txheem plated qhov, tseem hu ua metallized qhov, yog txheej txheem nyob rau hauv uas tag nrho lub qhov phab ntsa yog plated nrog hlau kom cov qauv conductive ntawm lub puab thiab txheej txheej ntawm ib tug ob-sided luam ntawv Circuit Court board yuav ua tau hluav taws xob interconnected.
3. Screen luam ntawv
Cov ntaub ntawv luam tawm tshwj xeeb yog siv rau kev tshuaj ntsuam luam ntawv Circuit Court qauv, solder mask qauv, cim cim qauv, thiab lwm yam.
4. Electroplating tin-lead alloy
Electroplating tin-lead alloys muaj ob txoj haujlwm: ua ntej, raws li cov txheej txheem tiv thaiv corrosion thaum electroplating thiab etching;thib ob, raws li ib tug solderable txheej rau lub tiav board.Electroplating tin-lead alloys yuav tsum nruj me ntsis tswj lub da dej thiab txheej txheem txheej txheem.Lub thickness ntawm tin-lead alloy plating txheej yuav tsum ntau tshaj 8 microns, thiab lub qhov phab ntsa yuav tsum tsis txhob tsawg tshaj li 2.5 microns.
luam tawm Circuit Board
5. Etching
Thaum siv cov tin-lead alloy ua cov txheej txheem los tsim cov vaj huam sib luag ob sab los ntawm cov qauv electroplating etching, cov kua qaub tooj liab chloride etching tov thiab ferric chloride etching tov tsis tuaj yeem siv vim lawv kuj corrode tin-lead alloy.Nyob rau hauv cov txheej txheem etching, "sab etching" thiab txheej broadening yog yam uas cuam tshuam rau etching: zoo
(1) Sab corrosion.Sab corrosion yog qhov tshwm sim ntawm sinking los yog sinking ntawm tus neeg xyuas pib ntug tshwm sim los ntawm etching.Qhov twg ntawm sab corrosion yog cuam tshuam nrog etching tov, khoom siv thiab txheej txheem txheej txheem.Qhov tsawg flank corrosion zoo dua.
(2) Lub txheej yog dav.Kev nthuav dav ntawm cov txheej txheej yog vim lub thickening ntawm txheej, uas ua rau qhov dav ntawm ib sab ntawm cov hlau tshaj qhov dav ntawm cov phaj hauv qab tiav.
6. Kub plating
Kub plating muaj cov khoom siv hluav taws xob zoo heev, kev tiv thaiv me me thiab ruaj khov thiab hnav tsis kam, thiab yog cov khoom siv plating zoo tshaj plaws rau cov ntawv luam tawm Circuit Board plugs.Nyob rau tib lub sijhawm, nws muaj cov tshuaj lom neeg ruaj khov thiab ua haujlwm zoo, thiab tseem tuaj yeem siv los ua corrosion-resistant, solderable thiab tiv thaiv txheej ntawm nto mount PCBs.
7. Kub yaj thiab cua kub leveling
(1) Kub yaj.Lub pcb coated nrog Sn-Pb alloy yog rhuab mus rau saum lub melting point ntawm Sn-Pb alloy, thiaj li hais tias Sn-Pb thiab Cu tsim ib tug hlau compound, yog li ntawd lub Sn-Pb txheej yog ntom, ci thiab pinhole-dawb, thiab corrosion kuj thiab solderability ntawm txheej yog txhim kho.poj niam deev.Kub-melt feem ntau siv glycerol kub-melt thiab infrared kub-melt.
(2) Cua kub leveling.Kuj hu ua tin spraying, lub npog ntsej muag-coated luam tawm Circuit Board yog leveled nrog flux los ntawm cov cua kub, ces invades lub molten solder pas dej ua ke, thiab ces hla ntawm ob lub tshuab cua tshuab los tshuab tawm ntau tshaj solder kom tau ib tug kaj, uniform, du. solder txheej.Feem ntau, qhov kub thiab txias ntawm lub tshuab ntxhua khaub ncaws yog tswj ntawm 230 ~ 235, qhov kub ntawm cov riam cua yog tswj los ntawm saum toj 176, lub sij hawm dip vuam yog 5 ~ 8s, thiab txheej thickness yog tswj ntawm 6 ~ 10 microns.
Ob Chav Sided Printed Circuit Board
Yog hais tias lub PCB ob-sided Circuit Court board raug muab pov tseg, nws tsis tuaj yeem rov ua dua, thiab nws qhov kev tsim khoom yuav cuam tshuam ncaj qha rau qhov zoo thiab tus nqi ntawm cov khoom kawg.
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