In the PCB inqubo yokuklama, ukwakheka kwe-PCB kanye nokucaciswa kwezinto ezibonakalayo kungabandakanya isisekelo sebhodi lesifunda, i-laminate kanye nesitaki sesendlalelo esiyinhloko. Lezi zinketho ziwukusetshenziswa okuhle kwe-design-to-manufacture (DFM) okuvamile kubo bonke. Kodwa-ke, ukukhetha okuningi kokuqedwa kwe-PCB ngaphezulu akuvamile ukucatshangelwa ngokwanele. Esikhundleni salokho, kusetshenziswa amanani azenzakalelayo esoftware. Kodwa-ke, ukuqedwa kwe-surface kuyinto ebaluleke kakhulu. Kuthinta ukuthembeka komhlangano we-PCB kanye nebhodi lesifunda ngokuvikela iminonjana yethusi nokuqinisa ukuxhumana kwe-solder. Ngaphezu kwalokho, izinhlobo eziningana zokwelapha ebusweni be-PCB zibalwe ngezansi.

Ibanga le-hot soldering grade (HASL)

I-HASL engenamthofu

I-Organic Solderability Preservative (OSP)

I-Immersion Silver (Au)

I-Immersion Tin (Sn)

I-Electroless nickel plating (ENIG)

I-Nickel engenawo amandla kanye negolide lokucwiliswa lamakhemikhali e-palladium (ENEPIG)

Electrolytic igolide solderable

Electrolytic igolide eliqinile

Ukwenza ukukhetha okulungile kumklamo wakho kudinga ukuqonda umehluko phakathi kwezinhlobo ezitholakalayo.

1. Umdayisi ongenamthofu-uthobela imithetho Yokukhawulelwa Kwezinto Eziyingozi (ROHS).

2. Ukucubungula ukuzwela-kulula ukungcoliswa noma ukonakala ngenxa yokucubungula.

3. I-wire bonding-ingakha ukuxhumana okuhle kwe-wire bonding.

4. Iphimbo elincane-lingasetshenziselwa izingxenye ezincane zephimbo, njenge-ball grid array (BGA).

5. Ukusetshenziswa kokuxhumana-sebenzisa othintana naye njengoxhumene naye.

6. Impilo yeshelufu-inempilo enhle yeshelufu, ingagcinwa isikhathi esingaphezu kwezinyanga eziyisithupha.

7. Izindleko ezengeziwe-imvamisa zikhuphula izindleko zokukhiqiza ze-PCB.

Manje, ngesethi yezimfanelo zokuqhathanisa, singaxazulula kangcono inkinga yokuthi yiluphi uhlobo lokuqeda lwe-PCB okufanele lusetshenziswe.

Ukuqhathaniswa kwezinhlobo zokwelashwa kwendawo ye-PCB

Izibaluli ezingenhla zibaluleke kakhulu futhi zingasetshenziswa ukukusiza ukhethe uhlobo olungcono kakhulu lwe-PCB yokwelashwa kwendawo. Kodwa-ke, kufanele uxhumane nomkhiqizi wenkontileka (i-CM) ukuze uqonde ukwehluka kwezindleko ezithile nezinye izici ezingase zithinte isinqumo sakho, njengesikhathi esengeziwe sokwenza.