No or partial deposition
- Likely causes
- Weak activation, contamination, low reactivity or off-spec bath
- First checks
- Check pretreatment/catalyzation before pH, temperature and components
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Products & Solutions · 03
Electroless plating
Metal, reducer, pH, temperature and bath loading are controlled to maintain deposition rate and stability in electroless nickel and copper.
PROCESS OVERVIEW
Product review starts with process conditions
Electroless deposits form by chemical reduction rather than external current. Pretreatment and activation are reviewed with replenishment, bath aging, contamination and filtration around reaction balance.
Suitability is reviewed with the substrate, upstream and downstream stages, control items, and required finish—not by product name alone.
- Applicable substrates & targets
- Steel and iron · Copper and copper alloys · Aluminum and its alloys · Catalyzed non-conductors · Electronic and precision parts
- Application scope
- Electroless nickel · Electroless copper · Zincate pretreatment for aluminum · Activation and catalyzation · Post-treatment and heat treatment
CONTROL POINTS
Key control items to review before application
Current settings and recent changes help establish a more useful inspection sequence.
- 01pH and bath temperature
- 02Nickel or copper concentration
- 03Reducer and complexant condition
- 04Bath loading and deposition rate
- 05Replenishment, turnover and bath age
- 06Pretreatment and activation
- 07Particles, metallic impurities and filtration
TROUBLESHOOTING
Common issues and first checks
One symptom can involve several process factors, so likely causes and the inspection sequence are reviewed together.
Low rate or thickness
- Likely causes
- Low metal/reducer, low pH/temperature or aged bath
- First checks
- Compare analysis, hourly thickness and replenishment/turnover history
Roughness or particles
- Likely causes
- Decomposition particles, contamination, weak filtration or plate-out
- First checks
- Locate the particle source and inspect filtration and tank cleanliness
Bath decomposition
- Likely causes
- Overheating, local pH rise, overfeed or catalytic contamination
- First checks
- Check temperature uniformity, feeding, metallic impurities and loading
TECHNICAL SUPPORT
PLACHEM support scope
Field conditions and defect symptoms are used to organize the items that should be checked first.
- 01Bath-analysis and replenishment criteria
- 02Deposition-rate, loading and turnover review
- 03Cause classification for skip plating, roughness and decomposition
- 04Substrate-specific pretreatment and activation review
Discuss application conditions for Electroless plating
Share the substrate, process sequence, chemicals in use, control values, defect symptoms, or required documents.