Kwi PCB inkqubo yoyilo, uyilo PCB kunye neenkcukacha eziphathekayo zingabandakanya isiseko sebhodi yesekethe, i-laminate kunye ne-core layer stack. Olu khetho luyilo-ukuya-kwimveliso (DFM) lusetyenziso oluqhelekileyo kubo bonke. Nangona kunjalo, ukhetho oluninzi lokugqitywa komphezulu we-PCB kaninzi aluqwalaselwa ngokwaneleyo. Endaweni yoko, amaxabiso angagqibekanga esoftware asetyenziswa. Nangona kunjalo, ukugqitywa komphezulu kubaluleke kakhulu. Ichaphazela ukuthembeka kwendibano yePCB kunye nebhodi yesekethe ngokukhusela imikhondo yobhedu kunye nokomeleza unxibelelwano lwe-solder. Ukongeza, iintlobo ezininzi zonyango lwe-PCB lomphezulu zidweliswe ngezantsi.

Ibakala lokushushumbisa umoya oshushu (HASL)

I-HASL yasimahla

I-Organic Solderability Preservative (OSP)

Ukuntywiliselwa kwiSilivere (Au)

Itoti yokuntywiliselwa (Sn)

Ukufakwa kwe-nickel engenambane (ENIG)

Electroless nickel kunye neekhemikhali palladium immersion gold (ENEPIG)

Electrolytic igolide ethengiswayo

Electrolytic igolide enzima

Ukwenza ukhetho olufanelekileyo kuyilo lwakho kufuna ukuqonda umahluko phakathi kweentlobo ezikhoyo.

1. I-solder-free-free-solder-ithobela iMiqathango yeMiqathango yezinto ezinobungozi (ROHS).

2. Ukucutshungulwa kobuntununtunu kulula ukungcoliseka okanye konakaliswe ngenxa yokusetyenzwa.

3. I-wire bonding-inokwenza uqhagamshelo olululo lwentambo.

4. I-pitch encinci-inokusetyenziswa kwizinto ezincinci ze-pitch, ezifana ne-ball grid array (BGA).

5. Ukusetyenziswa koqhagamshelwano-sebenzisa umfowunelwa njengomfowunelwa.

6. Ubomi beshelufu-nobomi obuhle beshelufu, inokugcinwa ngaphezu kweenyanga ezintandathu.

7. Iindleko ezongezelelweyo-zidla ngokunyusa iindleko zokwenziwa kwePCB.

Ngoku, kunye neseti yeempawu zothelekiso, singakwazi ukusombulula ngcono ingxaki yoluphi uhlobo lwePCB olugqibezela ukusetyenziswa.

Ukuthelekiswa kweentlobo zonyango ze-PCB

Ezi mpawu zingentla zibaluleke kakhulu kwaye zingasetyenziswa ukukunceda ukhethe olona hlobo lulungileyo lonyango lomphezulu lwe-PCB. Nangona kunjalo, kufuneka udibane nomenzi wekhontrakthi (CM) ukuqonda umahluko weendleko ezithile kunye nezinye izinto ezinokuchaphazela isigqibo sakho, njengexesha elongezelelweyo lokuguqula.