4 Txheej ENIG PCB 8329

1. Ua ib nrab qhov ob V hom riam.

2. Hauv qhov kev xyaum thib ob, cov lus qhia ntxiv rau ntawm ntug ntawm lub qhov, cov tawv nqaij tooj liab tau muab tshem tawm ua ntej, thiab cov burr raug txo. Cov grooves yog siv rau kev drilling kom ua tiav qhov nrawm ntawm kev ntog.

3. Tooj tooj liab plating rau ntawm txheej txheej, kom txheej txheej tooj liab plating ntawm lub qhov phab ntsa ntawm lub qhov puag ncig ntawm lub phaj.

4. Cov txheej txheem sab nrauv yog tsim los ntawm cov yeeb yaj kiab uas nthuav tawm, nthuav tawm thiab txhim kho ntawm cov substrate nyob rau hauv lem, thiab tom qab ntawd cov substrate tau plated nrog tooj liab thiab tin ob zaug, yog li txheej tooj liab ntawm lub qhov phab ntsa ntawm lub qhov puag ncig ntawm ntug ntawm phaj yog tuab thiab txheej tooj liab tau npog los ntawm txheej txheej nrog cov tshuaj tiv thaiv xeb;

5. Ib nrab qhov tsim daim phaj ntug puag ncig lub qhov txiav ib nrab los ua ib nrab qhov;

6. Tshem tawm zaj duab xis yuav tshem cov zaj duab xis tiv thaiv plating nias hauv txheej txheem zaj duab xis nias;

7. Etch lub substrate, thiab tshem tawm cov tooj liab nthuav tawm ntawm txheej sab nrauv ntawm cov substrate tom qab tshem zaj duab xis;

Tin peeling Cov substrate yog tev tawm kom cov tin tau tshem tawm ntawm phab ntsa ib nrab perforated thiab txheej tooj liab ntawm phab ntsa semi-perforated raug nthuav tawm.

8. Tom qab molding, siv daim kab xev liab los lo rau daim phiaj ua ke, thiab hla alkaline etching kab kom tshem cov burrs

9. Tom qab tooj liab plating thib ob thiab tin plating ntawm cov substrate, lub qhov ncig ntawm ntug ntawm phaj yog txiav ib nrab los ua ib nrab qhov. Vim tias txheej tooj liab ntawm lub qhov phab ntsa tau npog nrog txheej txheej, thiab txheej tooj liab ntawm lub qhov phab ntsa tau txuas nrog txheej tooj liab ntawm txheej txheej txheej ntawm txheej txheej, thiab kev sib zog quab yuam loj, txheej tooj liab ntawm lub qhov phab ntsa tuaj yeem zam tau zoo thaum txiav, xws li rub tawm lossis qhov tshwm sim ntawm tooj liab warping;

10. Tom qab ua tiav ntawm ib nrab qhov tsim thiab tom qab ntawd tshem cov zaj duab xis, thiab tom qab ntawd kos, tooj liab saum npoo oxidation yuav tsis tshwm sim, zoo zam qhov tshwm sim ntawm tooj liab seem thiab txawm tias luv Circuit Court tshwm sim, txhim kho cov txiaj ntsig ntawm metallized ib nrab-qhov PCB