Can electroplating Cu on gold improve adhesion?

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SUMMARY

The discussion centers on the challenges of electroplating copper (Cu) on a 200nm gold (Au) seed layer, specifically addressing poor adhesion issues. The participant initially inquired about methods to enhance adhesion and the potential benefits of applying a copper layer via e-beam evaporation prior to electroplating. Ultimately, it was revealed that the quality of Cu plating on Au is satisfactory, indicating that the initial adhesion problem was due to user error rather than a flaw in the process itself.

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  • Understanding of electroplating techniques
  • Familiarity with gold and copper material properties
  • Knowledge of e-beam evaporation processes
  • Experience with adhesion testing methods
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  • Research methods to improve adhesion in electroplating
  • Learn about e-beam evaporation and its applications in thin film deposition
  • Investigate the effects of pH on electroplating solutions
  • Explore adhesion testing techniques for metal layers
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This discussion is beneficial for materials scientists, electroplating technicians, and engineers involved in semiconductor fabrication or surface coating processes.

Si14
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Hi all:

I have a 200nm Au seed layer. and I am electroplating Cu on that using a solution. but the result is not good. The adhesion between the electroplated copper and gold seed layer is very poor and it easily peels off.
1-I wonder how can I increase the adhesion between them?

2-Does depositing (e-beam evaporation) a layer of Cu on top of the Au seed layer before plating help?

Thank you very much.
 
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Thank you MLSmateo.
Actually, I found the problem. The Cu-plating quality on Au is good. I made a mistake.
Yes, I have read somewhere that this process is verified, but the reverse process (EP Au on Cu) is very hard to realize.
Thanks again anyways.
 

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