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Della Zhang

Email:zx@pcb-smt.net 

Tel:+8675526978081

Fax:+8675526978080

Mobile:+8613510199155

Skype:fastpcba03

Web:www.pcb-smt.net/www.pcbapcb.com

Factory address: 3/F. 1/B, 18-2 Yuquan East Rd. Yulv Village. Guangming New district. Shenzhen. China.

Pcb Assembly Services Pcb Production

pcb assembly services pcb production Surface finish process for Printed Circuit Boards -plating gold and immersion gold There are several kinds of surface finish processes for PCB (printed circuit board): light board (without any surface treatment), rosin board, OSP (Organic solder protection...

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Surface finish process for Printed Circuit Boards -plating gold and immersion gold

 

There are several kinds of surface finish processes for PCB (printed circuit board): light board (without any surface treatment), rosin board, OSP (Organic solder protection agent, better than rosin), HASL (lead, lead-free), plating gold and immersion gold, etc., these are common surface finish ways.

 

Plating Gold used in the principle of electrolysis, also known as electroplating. While Immersion Gold is a chemical deposition method, generated by the method of chemical oxidation, this can achieve a thicker gold plating layer.

 

Basic differences between plating gold &Immersion Gold:

Performance

Appearance

solderability

Signal transmission

Quality

Plating Gold

Golden with blushing

Normal, and sometimes soldering not well enough

The skin effect is bad for the high frequency signals transmission

1. gold surface easily oxidized

2. easy to cause  short gold wire

3. solder mask is not strong

Immersion Gold

Golden Yellow

Better than Gold plating

The skin effect won’t affect signal transmission

1. Not easily oxidized

2. No gold wire is produced

3. Solder mask bonding is good

 

It is said that around 90% of gold boards carrying Immersion Gold surface finish in actual application, mainly because of the poor solderability for the gold-plating treatment. FastPCBA hereby remind you, be sure to choose a suitable way from the design step.

 

Any PCB or PCBA inquiries? Warmly welcome any of your comments, FastPCBA is right here for you.

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FAQ:

What files required to get quotation from you?
FASTPCBA: For PCB quotation, please provide the Gerber data/files and indication of related technical requirements as well as any special requirement if you have.

For PCBA quotation, please provide Gerber data/ files and also BOM (bill of materials), and if you need us to do function test, please also provide the test instruction/procedure

FASTPCBA Technology Co.,Ltd is a competitive China pcb assembly services pcb production OEM manufacturer, supplier and vendor, you can get quick turn pcb assembly services pcb production production prototypes and samples from our factory.
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