Determination of Copper concentration in Ruthenium electroplating baths

Copper analysis allows the quantification of Cu2+ concentration in ruthenium electroplating baths. Copper can contaminate ruthenium baths causing issues of aesthetic and functional defects in finished products (e.g. pitting, flaking, pitting corrosion). Monitoring the concentration of copper in ruthenium baths is essential as part of the quality control of galvanic processes to ensure their efficiency and meet the high quality standards required by the market.

Method

Test type: End Point.

Time testing: 2 minutes
Analysis sessions with multiple samples are possible up to a maximum of 16 tests for CDR GalvanLab®.

Sample treatment

The sample can be used as is.

Test principle

Copper content is determined by its reaction with a chromogen that develops a coloration, the optical intensity of which is proportional to the concentration of Cu in the analyzed sample.

Calibration curve

The calibration curve was obtained by correlating the CDR method with the reference method.

Copper calibration curve in Ruthenium baths

Measuring range

AnalysesMeasuring rangeResolutionRepeatability
Copper on Ru bath3 - 25 mg/L0.100 mg/L0.6 mg/L

Reagent test Kits

Code *400040: 100 test
Code *400045: 10 test
The reagents have a shelf-life of 12 months

The chemical analysis instrument for electroplating baths

CDR GalvanLab®

  • Complete analysis panel, supplied already configured
  • Up to 16 determinations simultaneously
  • Possibility of carrying out analyses of the same sample
  • Integrated printer
  • Full connections (LAN - USB - Bluetooth barcode/QR code reader)