Kupanga kwa HDI PCB --- Kumiza Golide pamwamba
Adalemba:Januware 28, 2023
Magulu: Mabulogu
Tags: pcb,pcba,pcb msonkhano,kupanga pcb, pcb pamwamba kumaliza
ENIG imatanthawuza Electroless Nickel / Immersion Gold, yomwe imatchedwanso chemical Ni/Au, kugwiritsidwa ntchito kwake kwadziwika tsopano chifukwa cha kuyankha kwa malamulo opanda kutsogolera komanso kuyenera kwake pamapangidwe a PCB a HDI ndi malo abwino pakati pa BGAs ndi SMTs. .
ENIG ndi Chemical process yomwe imayika mkuwa wowonekera ndi Nickel ndi Golide, motero imakhala ndi zokutira zazitsulo ziwiri, 0.05-0.125 µm (2-5μ mainchesi) ya kumiza Golide (Au) kupitilira 3-6 µm (120- 240μ mainchesi) wa Nickel wopanda electroless (Ni) monga momwe zafotokozedwera muzovomerezeka.Panthawiyi, nickel imayikidwa pamtunda wamkuwa wopangidwa ndi palladium, ndikutsatiridwa ndi golidi kumamatira kudera lopangidwa ndi nickel ndi kusinthana kwa maselo.Kupaka kwa nickel kumateteza mkuwa ku okosijeni ndikukhala ngati pamwamba pa PCB msonkhano, komanso chotchinga chotchinga kuti mkuwa ndi golide zisasunthike wina ndi mzake, ndipo Au wosanjikiza kwambiri amateteza nickel wosanjikiza mpaka soldering ndondomeko ndipo amapereka otsika. kukana kukhudzana ndi kunyowetsa bwino.Kukhuthala uku kumakhalabe kosasinthasintha pa bolodi losindikizidwa losindikizidwa.Kuphatikizikako kumawonjezera kwambiri kukana kwa dzimbiri ndikupereka malo abwino kwambiri opangira ma SMT.
Ndondomekoyi ili ndi izi:
1) Kuyeretsa.
2) Microetching.
3) Kudumphiratu.
4) Kugwiritsa ntchito activator.
5) Pambuyo kuviika.
6) Kugwiritsa ntchito faifi tambala wopanda electro.
7) Kugwiritsa ntchito golide womiza.
Kumizidwa kwa golide kumagwiritsidwa ntchito pambuyo poti chigoba cha solder chagwiritsidwa ntchito, koma nthawi zina, chimagwiritsidwa ntchito isanachitike.Mwachiwonekere, izi zidzakwera mtengo ngati mkuwa wonse utakutidwa ndi golidi osati zomwe zimawonekera pambuyo pa solder mask.
Chithunzi pamwambapa chikuwonetsa kusiyana pakati pa ENIG ndi zomaliza zina zagolide.
Mwaukadaulo, ENIG ndiye yankho labwino lopanda chitsogozo la ma PCB kuyambira pakuyala kwake kwakukulu komanso kufanana kwake, makamaka kwa HDI PCB yokhala ndi VFP, SMD ndi BGA.ENIG imakondedwa nthawi zina pomwe kulolerana kolimba kumafunidwa pazinthu za PCB monga mabowo odzaza ndi ukadaulo wofikira.ENIG ndiyoyeneranso kulumikiza waya (Al) yolumikizira.ENIG imalangizidwa kwambiri pazosowa zama board zomwe zimakhudzana ndi mitundu yowotchera chifukwa imagwirizana ndi njira zosiyanasiyana zolumikizirana monga SMT, tchipisi tambirimbiri, tchipisi tating'onoting'ono, kuphatikiza ma waya, komanso ukadaulo wolumikizirana.Electroless Ni/Au surface imayimilira ndi matenthedwe angapo ndikuwongolera zodetsa.
ENIG imawononga ndalama zambiri kuposa HASL, OSP, Immersion Silver ndi Immersion Tin.Pad yakuda kapena Padi ya phosphorous yakuda imachitika nthawi zina pomwe phosphorous imachulukana pakati pa zigawozo imapangitsa kulumikizana kolakwika ndi malo osweka.Choyipa china chomwe chimabwera ndi maginito osafunika.
Zabwino:
- Lathyathyathya Pamwamba - Zabwino kwambiri pa Assembly of fine pitch (BGA, QFP…)
- Kukhala ndi solderability wabwino kwambiri
- Moyo Wautali Wautali (pafupifupi miyezi 12)
- Kukana kwabwino kolumikizana
- Zabwino kwambiri pama PCB amkuwa wandiweyani
- Zabwino kwa PTH
- Zabwino kwa flip chips
- Oyenera Press-fit
- Wire Bondable (Pamene Waya Aluminium Agwiritsidwa Ntchito)
- Zabwino kwambiri zamagetsi madutsidwe
- Kutaya kwabwino kwa kutentha
Zoyipa:
- Zokwera mtengo
- Black phosphorous pad
- Kusokoneza kwa Electromagnetic, Kutayika Kwakukulu Kwambiri Pamafupipafupi
- Sitingathe Kukonzanso
- Sayenera Kukhudza Ma Pads
Zomwe zimagwiritsidwa ntchito kwambiri:
- Zida zapamtunda zovuta monga Ball Grid Arrays (BGAs), Quad Flat Packages (QFPs).
- Ma PCB okhala ndi Mixed Package Technologies, press-fit, PTH, ma waya.
- Ma PCB okhala ndi ma waya.
- Mapulogalamu odalirika kwambiri, mwachitsanzo ma PCB m'mafakitale omwe kulondola ndi kukhazikika ndikofunikira, monga zamlengalenga, zankhondo, zamankhwala ndi ogula apamwamba.
Monga otsogolera otsogolera a PCB ndi PCBA omwe ali ndi zaka zopitilira 15, PCB ShinTech imatha kupatsa mitundu yonse yazinthu zamagulu a PCB okhala ndi mapeto osinthika.Titha kugwira ntchito nanu kupanga ENIG, HASL, OSP ndi ma board ena ozungulira osinthidwa malinga ndi zomwe mukufuna.Timakhala ndi ma PCB okwera mtengo achitsulo / aluminiyamu ndi okhazikika, osinthika, osasunthika, komanso okhala ndi zinthu za FR-4, TG yapamwamba kapena zida zina.
Kubwereraku Blogs
Nthawi yotumiza: Jan-28-2023
