Situation
Wet-chemical baths are utilized for various process steps in modern solar cell production. Wet chemical processes are the standard in procedures for texturing, cleaning wafers, and removing PSG. Detailed understanding of processes and precise knowledge of wet chemical solutions’ chemical composition form the basis for reliable process control. The GP MINI-LAB precisely and simply analyzes almost all chemical compositions in the wet chemical baths used in acid texturing processes for solar cell production.
Principle
- Automatic chemical composition analysis
- Manual sample preparation
- Acid-base titration
- Metrohm tiamo® control software and data base system
Advantages
- Chemical composition knowledge increases line performance and bath life spans
- Better understanding of processes
- One measuring device can analyze various baths (various chemicals)
- No calibration necessary
Technical Data
Topic |
Description |
Measured chemicals |
- HF / HNO3 /Si (acidic texture baths) - KOH, HF, HCl - HF / HCl Further chemicals on request |
Measuring range |
HF: 0 - 150 g/l [5%] HNO3: 0 - 500 g/l [5%] Si: 0 - 50 g/l [5%] HCl: 0 - 150 g/l [5%] KOH: 0 - 100 g/l [5%] |
System Dimensions |
approx. 450 x 450 x 290 mm |
Protection class |
IP 54 |
Safety standards |
EN/IEC/UL 61010-1 CSA-C22.2 No. 61010-1 protection class I |
Note: All technical details are subject to change without prior notice. Only technical specifications contained in an offer are binding.