Precision Liquid Chemical Delivery Module (CDM) with PLC Control for Parts-Per-Trillion Purity in Solar Cell Production

In the rapidly evolving photovoltaic industry, the Precision Liquid Chemical Delivery Module (CDM) has become the gold standard for high-efficiency solar cell manufacturing. As technologies like N-type and TopCon demand higher surface quality, even microscopic contaminants can significantly degrade a panel’s energy conversion rate.

This Jewellok-engineered CDM achieves Parts-Per-Trillion (ppt) purity by utilizing a closed-loop system of 316L electropolished stainless steel and high-purity fluoropolymers. The heart of the module is its PLC (Programmable Logic Controller), which automates the delicate blending of texturing etchants and dopants with deionized water. This automation eliminates human error, ensuring that every batch meets the exact chemical “recipe” required for optimal silicon wafer treatment.

Safety and uptime are equally prioritized. The PLC-driven interface provides real-time monitoring of flow rates and pressure, while integrated sensors offer immediate leak detection and nitrogen blanketing for volatile solvents. By maintaining a constant, contamination-free flow of process chemicals, the CDM allows solar manufacturers to achieve 99.9% facility uptime and superior cell efficiency. It is the essential “precision engine” that powers the transition to cleaner, more reliable renewable energy.

 

Shenzhen Jewellok Technology Co., Ltd. provides advanced ultra-high purity (UHP) chemical handling solutions, including chemical delivery module (CDM) and chemical delivery system (CDS). Jewellok’s CDS and CDM automate high-purity chemical handling. Use the CDS for bulk transport from storage to the facility via electropolished 316L piping. Use the CDM for precise blending and dilution at the point-of-use. Both systems ensure safety and purity through automated leak detection and non-contact level monitoring.