NEX DE VS—RoHS Lead-Free Solder-Pak Rapid Screening by XRF
Scope
The lead-free Solder-Pak is demonstrated for RoHS rapid screening by XRF and WEEE directives.
Background
The Restriction on Hazardous Substances initiative (RoHS) limits the allowable amount of lead in solder. Energy dispersive X-ray fluorescence (EDXRF) is an accepted analysis technique for the rapid screening by XRF and quantification of the hazardous element according to RoHS norms. To meet the industry needs, Rigaku offers the NEX DE VS analyzer with automatic collimators and a camera for sample positioning and sample image, giving QA/QC technicians the means for fast and simple screening and analysis of materials that must conform to RoHS and similar directives.
Model: NEX DE VS
RoHS Pb-Free Solder-Pak method: Fundamental Parameters (FP) Matching Library
- FP for flexibility in measuring diverse solder samples
- Method set for typical tin-based or tin-silver solder
- Factory Matching Library for Pb using CRMs
- Flexible Rigaku Matching Library software makes it easy for user to customize the Matching Library or create new Matching Libraries
- Software includes empirical calibration capability
Solder-Pak results - CRM check standard
The Pb-free Solder-Pak comes with one CRM check standard with certified assay for Pb. Measurement results of the CRM check standards are shown here using the Solder-Pak method with Matching Library.
10 mm spot size applicable to NEX DE using autosampler tray for bulk analysis and NEX DE VS using single position point analysis
| CRM Check Standard Units: Mass% |
|
| 10 mm collimator | Pb |
| Certified assay | 0.107 ± 0.006 |
| NEX DE VS result | 0.110 |
3 mm and 1 mm spot sizes applicable NEX DE VS using single position point analysis.
| CRM Check Standard Units: Mass% |
|
| 3 mm collimator | Pb |
| Certified assay | 0.107 ± 0.006 |
| NEX DE VS result | 0.110 |
| CRM Check Standard Units: Mass% |
|
| 1 mm collimator | Pb |
| Certified assay | 0.107 ± 0.006 |
| NEX DE VS result | 0.104 |
Certified assay standard deviation (2-sigma)
User-defined RoHS limits
The Pb-free Solder-Pak comes with the default RoHS Pass/Unsure/Fail judgment settings. NEX DE software allows the user to easily adjust and enter different limits as desired.
User-definable RoHS report fields
The flexible Rigaku software allows users to design RoHS report field headers to suit specific reporting needs. Headers to report Sample Name and Analyzed By are automatically set by default, and the user simply enters up to six additional report memo headers as desired.
Point analysis screen — NEX DE VS
Operator simply selects method, enters sample name and report fields, then presses Start.
RoHS report
A RoHS report is automatically generated that includes the user defined fields, sample image, and element judgment.
Conclusion
The NEX DE VS with automatic collimators and camera provides excellent sensitivity and reliable precision for RoHS rapid screening by XRF down to 1 mm spot size. Simple Point Analysis Screen allows operators to easily enter report information as designed using customizable report headers and automatically generates an RoHS report complete with sample image, analysis results, and Pass/Unsure/Fail judgment.
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