PCB ọkọ electro-gold obtains gold through electrolysis, while chemical gold obtains gold through chemical reduction reaction!

Simply put, PCB electroplating gold, like other PCB electroplating, requires power and a rectifier. There are many kinds of processes, including cyanide-containing, non-cyanide systems, and non-cyanide systems, such as citric acid type and sulfite type. All non-cyanide systems are used in the PCB industry.

Kẹmika goolu (itanna goolu plating) ko nilo lati ni agbara, o fi goolu sinu ọkọ nipasẹ iṣesi kemikali ninu ojutu.

Wọn ni awọn anfani ati alailanfani tiwọn. Ni afikun si agbara-lori ṣugbọn kii ṣe agbara-agbara, igbimọ PCB le jẹ ki o nipọn pupọ, niwọn igba ti akoko ba ti gbooro sii, o dara fun awọn igbimọ ifunmọ. Anfani ti PCB ẹrọ elekitiro-goolu ni sisọnu jẹ kere ju ti goolu kẹmika lọ. Sibẹsibẹ, PCB itanna goolu nilo lati sopọ si gbogbo igbimọ, ati pe ko dara fun awọn laini tinrin paapaa.

goolu kemika ni gbogbogbo jẹ tinrin pupọ (kere ju 0.2 microns), ati mimọ ti goolu jẹ kekere. Omi iṣẹ le jẹ asonu nigba lilo si iye kan.

Ọkan jẹ PCB electroplating lati dagba nickel goolu

Ọkan ni lilo iṣuu soda hypophosphite ti ara oxidation-reduction reaction to form a nickel Layer, ati ki o kan aropo lenu lati fẹlẹfẹlẹ kan ti goolu Layer (Uemura’s (TSB71 jẹ pẹlu ara-din goolu)), eyi ti o jẹ a kemikali ọna.

Ivy: Ni afikun si awọn iyatọ ilana laarin PCB electroplating ati goolu immersion, awọn iyatọ wọnyi wa:

PCB electroplating goolu Layer nipon ati ki o le, ki o ti wa ni maa n lo fun nigbagbogbo plugging ati ki o sii sisun awọn ẹya ara, gẹgẹ bi awọn ika goolu ti yipada awọn kaadi;

Immersion goolu dara fun iṣagbesori nitori awọn alapin dada ti paadi ati ki o ti wa ni tun lo fun asiwaju-free soldering.