Complete Fluid Handling Solutions for PV Cell Manufacturing
JONSN Precision Micro Magnetic Gear Pumps Complete Fluid Handling Solutions for PV Cell Manufacturing
PV cell manufacturing relies heavily on wet chemical processes. From initial silicon wafer texturing to final RCA cleaning, six core procedures demand precise delivery, proportioning and circulation of chemical liquids — applicable to PERC, TOPCon, and HJT technologies.
Six Wet Processes
From initial silicon wafer texturing to final RCA cleaning, six core procedures demand precise delivery, proportioning and circulation of chemical liquids.PERC / TOPCon / HJT
Though PERC, TOPCon and HJT differ slightly in process parameters, they share identical core requirements: reliable transfer of highly corrosive media, accurate metering of trace dopants, pulsation-free feeding of high-viscosity pastes, and contamination-free circulation.Inert Metallurgy
Fully inert PEEK + Zirconia ceramic wetted channels, ±0.2% repeat accuracy and leak-free magnetic drive design — forming a unified wet-process fluid platform.Category Text
Delivering an elite PV cell manufacturing gear pump line, JONSN powers semiconductor wafer wet process pump skids, silicon texturing acid circulation pump systems, and solar silver paste metering pump units.Four Key Industry Pain Points in PV Manufacturing
Full-spectrum acid/alkali corrosion shortening pump service life, trace dopant metering deviations, high-viscosity silver paste broken grids, and zero metal leaching mandates for ultra-pure cleaning — each eroding cell efficiency, batch yield, and module power sorting economics.
Six Detailed PV Wet Process Steps
Six-step engineering process layout — Step 1 Texturing, Step 2 Diffusion Doping, Step 3 Wet Etching, Step 4 Anti-Reflection Coating, Step 5 Screen Printing Paste, and Step 6 RCA Cleaning — each mapped to recommended JONSN pump series (MPG / MRA / MRB / DP) with technical parameters and key adaptations.
One Product Matrix for Three PV Technical Routes
Engineering selection matrix covering every PV wet-process step across PERC, TOPCon, and HJT lines — texturing, diffusion doping, wet etching, anti-reflection coating, screen printing paste, RCA cleaning, and central chemical distribution — with shared requirements and recommended JONSN model.
| Process Stage | Shared Requirements (PERC / TOPCon / HJT) | JONSN Recommended Model |
|---|---|---|
| Texturing | KOH + H2O2 + additive proportioning & circulation | MPG (additives) + MRA (main chemicals) |
| Diffusion Doping | μL-level precision injection of POCl3 / boron sources | MPG Series (40 μL/r displacement) |
| Wet Etching | HF/HNO3 mixed acid circulation & replenishment | MRA / MRB (Hastelloy or all-PEEK option) |
| Anti-Reflection Coating | Bubble-free delivery of TEOS / TMA liquid precursors | MPG Series (dead volume<0.5 mL) |
| Screen Printing Paste Supply | High-viscosity front/back silver & aluminum paste feeding | DP Series (0.2–100 cc/r, optional DLC coating) |
| RCA Cleaning | Alternating SC1/SC2/DHF supply, zero metal leaching | MPG Series (all-PEEK flow path) |
| Central Chemical Distribution | Multi-tank & multi-line centralized mixing & circulation | MRA / MRB / MRC Series |
Five Core Brand Advantages in PV Manufacturing
Combined compliance and brand-advantage matrix — full inert metallurgy, ±0.2% dopant accuracy, pulsation-free paste feeding, and 20,000h maintenance-free operation — turning JONSN into the single-source supplier for GW-scale PERC / TOPCon / HJT lines.
Single Platform Full Line:
Four product lines (MPG / MRA / MRB / DP) cover all fluid handling demands across six processes from texturing to RCA cleaning.Fully Inert Materials:
Overcurrent components in PEEK, Hastelloy C-276, and Zirconia ceramics resist pH 1–14 strong acids, alkalis, and oxidizers.Zero Metal Leaching:
No Fe, Cu, Ni metallic ions introduced during ultra-pure processes — safeguarding mass-production conversion efficiency windows: PERC ≥ 23.5%, TOPCon ≥ 25%, HJT ≥ 25.5%.20,000h Lifespan:
Zirconia ceramic gears and PEEK bearings deliver verified 20,000 hours maintenance-free operation matching 7×24 GW-scale continuous lines.PV Cell Manufacturing Technical FAQ
How does a JONSN PV cell manufacturing gear pump eliminate hot alkali and hydrofluoric acid seal leakage?
In solar cell wet benches, pumps continuously handle 85°C hot KOH/H2O2 texturing bath and HF/HNO3 mixed acids that degrade mechanical seals within 3 months. A JONSN PV cell manufacturing gear pump (MRA/MRB series) features a 100% hermetic magnetic drive pairing static PTFE/FFKM O-rings with PEEK or Hastelloy C-276 wetted parts. With no dynamic mechanical seals, it eliminates corrosive acid/alkali leaks and prevents hazardous cleanroom chemical spills.
What microfluidic precision makes JONSN a premier semiconductor wafer wet process pump for POCl3 diffusion?
Doping deviation exceeding ±1% causes sheet resistance fluctuations, reducing solar cell efficiency by 0.1%–0.3%. Operating as an ultra-precise semiconductor wafer wet process pump, the JONSN MPG series (40 μL/r micro-displacement, 1–280 mL/min) uses closed-loop stepper motor control to achieve ±0.2% dopant flow accuracy. It locks wafer sheet resistance uniformity ≤ ±2 Ω/□ and eliminates toxic POCl3 vapor leakage via magnetic isolation.
Why is JONSN silicon texturing acid circulation pump technology preferred for TOPCon and HJT production lines?
TOPCon and HJT cell texturing require exact proportional dosing of hot KOH, H2O2, and isopropanol texturing additives. A JONSN silicon texturing acid circulation pump configuration pairs MRA continuous proportioning pumps with MPG micro-additive injection units. Built with 100% PEEK housings and Zirconia ceramic gears, it operates reliably in 85°C alkali with ±0.2% repeat accuracy, stabilizing surface reflectance within narrow process windows.
How does a JONSN solar silver paste metering pump eliminate broken grid lines during screen printing?
Front and back silver pastes have high viscosities of 10,000–50,000 MPa·s, where feeding pressure swings above ±5% cause broken fingers and low fill factor. The JONSN solar silver paste metering pump (DP series 0.2–100 cc/r) utilizes positive displacement multi-tooth PEEK gears with optional DLC coatings. Suppressing pressure fluctuation below ±2%, it delivers uniform finger width, reduces silver paste cavity dead volume by >60%, and resists glass powder abrasion.
