Blistering thaum lub sij hawm electroplating ntawm hluav taws xob cua sov raj, adhesion tsis zoo

Apr 29, 2023

Tso lus

2.3.1 Ua rau

(1) Cov ntsiab lus potassium chloride hauv cov tshuaj plating yog siab dhau lawm;

(2) PH qis heev

(3) High cathode tam sim no ceev;

(4) Ntau dhau brightener;

(5) Muaj ntau yam impurities hauv cov hlau hlau;

(6) Lub workpiece matrix muaj silicon.

2.3.2 Cov txheej txheem ua

(1) Los ntawm kev txheeb xyuas, ntxiv cov poov tshuaj chloride rau cov txheej txheem tshwj xeeb;

(2) Kho cov pH rau cov txheej txheem tshwj xeeb;

(3) Ua kom zoo txo cov cathode tam sim no ceev;

(4) Siv qhov tsim nyog ntawm cov pa roj carbon activated rau adsorb thiab lim;

(5) Txheej txheem raws li txoj kev 2.1.2 (6) saum toj no;

(6) Los ntawm kev txheeb xyuas, npaj cov tshuaj sib xyaw uas muaj hydrofluoric acid rau pickling. Kev daws ntawm 300mL / L concentrated hydrochloric acid ntxiv rau 20mL / L hydrofluoric acid (wHF=40 feem pua) tuaj yeem siv tau, qhov twg cov hydrofluoric acid tuaj yeem yaj thiab tshem tawm silicon uas muaj cov khoom sib txuas, ua kom lub ntsej muag ntawm lub workpiece substrate.

2.4 Roughness thiab burning

2.4.1 Ua rau

(1) Cov ntsiab lus zinc chloride hauv cov tshuaj plating yog siab dhau (ua rau cov txheej txheej ntxhib) lossis qis dhau (yooj yim hlawv);

(2) Cov ntsiab lus ntawm potassium chloride thiab boric acid tsawg dhau;

(3) PH siab dhau (ua rau txheej txheej ntxhib) lossis qis dhau (ua rau hlawv);

(4) Tsis txaus brightener;

(5) Muaj ntau yam impurities hauv cov hlau hlau thiab tooj liab.

2.4.2 Cov txheej txheem ua

(1) Kho cov ntsiab lus zinc chloride rau cov txheej txheem tshwj xeeb los ntawm kev tshuaj xyuas;

(2) Ntxiv poov tshuaj chloride thiab boric acid rau cov txheej txheem specifications;

(3) Kho cov pH rau cov txheej txheem tshwj xeeb;

(4) Ntxiv brighteners kom tsim nyog;