Asked about the stabilizer for hydrogen peroxide micro-etching solution

2009-11-10View Original

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In PCB production, sulfuric acid and hydrogen peroxide are used to micro-etch the copper surface, but hydrogen peroxide tends to decompose; currently, stabilizers can be added to inhibit its decomposition. However, the high concentration of Cl- in the bath can affect the micro-etching effect of hydrogen peroxide. What substances can inhibit Cl-, and what is the principle behind the impact of Cl-?

Reply #22009-11-27

Experts, come and take a look. . . . . .

Reply #32009-11-27

I think Cl- plays a role in corrosion inhibition.

Reply #42010-05-19

The micro-etching solution can be reused to recover copper; I wonder if those up and down in the thread are interested! My QQ: 40346884

Reply #52013-10-15

I also want to learn about *this issue; please ask an expert for help.

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Asked about the stabilizer for hydrogen peroxide micro-etching solution

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