Double Side Rigid SMT PCB Assembly Circuit Board
Zambiri Zamalonda
| Quote & Zofunika Zopanga | Gerber Fayilo kapena PCB Fayilo ya Bare PCB Board Fabrication |
| Bom(Bill of Material) ya Assembly,PNP(Sankhani ndi Malo Fayilo) ndi Components Position ikufunikanso pamsonkhano | |
| Kuti muchepetse nthawi yowerengera, chonde tipatseni gawo lonse la gawo lililonse, kuchuluka pa bolodi komanso kuchuluka kwa maoda. | |
| Chitsogozo Choyesera & Njira Yoyesera Ntchito kuti muwonetsetse kuti mtunduwo ukufikira pafupifupi 0% chiwongola dzanja | |
| OEM/ODM/EMS Services | PCBA, PCB msonkhano: SMT & PTH & BGA |
| PCBA ndi kamangidwe ka mpanda | |
| Kupeza ndi kugula zinthu | |
| Quick prototyping | |
| Kumangira jekeseni wa pulasitiki | |
| Zitsulo mapepala masitampu | |
| Msonkhano womaliza | |
| Mayeso: AOI, In-Circuit Test (ICT), Functional Test (FCT) | |
| Chilolezo chamwambo cholowetsa zinthu kunja ndi kutumiza kunja |
Njira Yathu
1. Njira yomiza golide: Cholinga cha ndondomeko yomiza golide ndikuyika zokutira golide wa nickel ndi mtundu wokhazikika, kuwala kwabwino, zokutira zosalala komanso kusungunuka kwabwino pa PCB, zomwe zingathe kugawidwa m'magawo anayi: pretreatment. (Degreasing, micro-etching, activation, post-dipping), nickel kumizidwa, kumiza golide, pambuyo mankhwala, (kutaya golide kutsuka, DI kutsuka, kuyanika).
2. Zitini zopoperapo ndi lead: Kutentha kwa eutectic komwe kumakhala ndi lead ndikotsika kuposa kwa aloyi wopanda lead.Kuchuluka kwapadera kumadalira kapangidwe ka aloyi wopanda kutsogolera.Mwachitsanzo, eutectic ya SNAGCU ndi madigiri 217.Kutentha kwa soldering ndi kutentha kwa eutectic kuphatikiza madigiri 30-50, kutengera kapangidwe kake.Kusintha kwenikweni, eutectic yotsogolera ndi madigiri 183.Mphamvu zamakina, kuwala, ndi zina zotere ndi zabwino kuposa zopanda lead.
3. Kupopera mbewu kwa malata opanda lead: lead kumathandizira kugwira ntchito kwa waya wa malata powotcherera.Waya wa malatawo ndi wosavuta kugwiritsira ntchito kuposa waya wopanda mtovu, koma wotsogolerawo ndi wapoizoni, ndipo si wabwino kwa thupi la munthu ngati waugwiritsa ntchito kwa nthawi yaitali.Ndipo malata opanda mtovu adzakhala ndi malo osungunuka kwambiri kuposa lead-tin, kotero kuti zolumikizira zogulitsira zimakhala zolimba kwambiri.
Njira yeniyeni ya PCB yokhala ndi mbali ziwiri zopangira bolodi
1. CNC kubowola
Pofuna kuonjezera kachulukidwe ka msonkhano, mabowo pa bolodi loyang'ana mbali ziwiri la PCB akucheperachepera.Nthawi zambiri, matabwa awiri-mbali pcb ndi mokhomerera ndi CNC pobowola makina kuonetsetsa zolondola.
2. Electroplating dzenje ndondomeko
The yokutidwa dzenje ndondomeko, amatchedwanso metallized dzenje, ndi ndondomeko imene lonse dzenje khoma yokutidwa ndi zitsulo kuti mapatani conductive pakati pa zigawo zamkati ndi kunja kwa mbali ziwiri kusindikizidwa dera bolodi akhoza kulumikizidwa magetsi.
3. Kusindikiza pazenera
Zida zosindikizira zapadera zimagwiritsidwa ntchito pazithunzi zosindikizira zosindikizira, mawonekedwe a chigoba cha solder, mawonekedwe a zilembo, ndi zina zotero.
4. Electroplating tin-lead alloy
Electroplating tin-lead alloys ali ndi ntchito ziwiri: choyamba, monga anti-corrosion protective layer pa electroplating ndi etching;chachiwiri, ngati zokutira solderable kwa bolodi yomalizidwa.Electroplating malata-kutsogolera aloyi ayenera mosamalitsa kulamulira kusamba ndi ndondomeko zinthu.Makulidwe a tini-kutsogolera aloyi plating wosanjikiza ayenera kukhala oposa 8 microns, ndipo dzenje khoma sayenera kukhala osachepera 2.5 microns.
bolodi losindikizidwa
5. Kuwotcha
Mukamagwiritsa ntchito tini-lead alloy ngati chosanjikiza kuti mupange gulu la mbali ziwiri pogwiritsa ntchito njira yopangira electroplating etching, yankho la acid copper chloride etching solution ndi ferric chloride etching solution silingagwiritsidwe ntchito chifukwa amawononganso aloyi ya tini-lead.Mu etching, "mbali etching" ndi kukulitsa zokutira ndi zinthu zomwe zimakhudza etching: khalidwe
(1) Kudzimbirira m’mbali.Mbali ya dzimbiri ndizochitika za kumira kapena kumira kwa m'mphepete mwa conductor chifukwa cha etching.Kuchuluka kwa dzimbiri m'mbali kumakhudzana ndi njira yolumikizira, zida ndi momwe zimakhalira.Kuchepa kwa dzimbiri m'mbali kumakhala bwinoko.
(2) Chophimbacho n’chokula.Kukulitsidwa kwa zokutira kumabwera chifukwa cha kukhuthala kwa zokutira, zomwe zimapangitsa kuti m'lifupi mwake mbali imodzi ya waya ipitirire m'lifupi mwa mbale yomalizidwa pansi.
6. Kupaka golide
Kuyika kwa golide kumakhala ndi mphamvu zabwino kwambiri zamagetsi, kukana kwazing'ono komanso kosasunthika kukhudzana ndi kukana kwabwino kwambiri, ndipo ndizinthu zabwino kwambiri zopangira mapulagi osindikizidwa.Pa nthawi yomweyo, ali kwambiri bata mankhwala ndi solderability, ndipo angagwiritsidwenso ntchito ngati dzimbiri zosagwira, solderable ndi zoteteza ❖ kuyanika pamwamba phiri PCBs.
7. Kusungunuka kotentha ndi kutentha kwa mpweya
(1) Kutentha kotentha.Pcb yokutidwa ndi Sn-Pb alloy imatenthedwa pamwamba pa malo osungunuka a Sn-Pb alloy, kotero kuti Sn-Pb ndi Cu amapanga zitsulo zachitsulo, kuti zokutira za Sn-Pb zikhale zowuma, zowala komanso zopanda pinhole. kukana dzimbiri ndi solderability wa zokutira bwino.kugonana.Hot-melt amagwiritsidwa ntchito glycerol hot-melt ndi infrared hot-sungunuka.
(2) Kutentha kwa mpweya.Amadziwikanso kuti kupopera tini, bolodi losindikizidwa lopangidwa ndi chigoba chopangidwa ndi solder limasinthidwa ndi mpweya wotentha, kenako limadutsa dziwe losungunuka la solder, kenako limadutsa pakati pa mipeni iwiri ya mpweya kuti liphulitse solder yochulukirapo kuti ikhale yowala, yunifolomu, yosalala. zokutira solder.Nthawi zambiri, kutentha kwa kusamba kwa solder kumayendetsedwa pa 230 ~ 235, kutentha kwa mpeni wa mpweya kumayendetsedwa pamwamba pa 176, nthawi yowotcherera ndi 5 ~ 8s, ndipo makulidwe ophimba amayendetsedwa pa 6 ~ 10 microns.
Komiti Yosindikizidwa Yozungulira Pawiri
Ngati bolodi loyang'ana mbali ziwiri la PCB litachotsedwa, silingasinthidwenso, ndipo khalidwe lake lopanga lidzakhudza kwambiri khalidwe ndi mtengo wa chinthu chomaliza.
Chiwonetsero cha Fakitale
