24-Position Spin Coating System with Smart Material Recovery | Custom Chuck & Nozzle for Minimal Loss
This material-saving 24-station spin coater is engineered to minimize photoresist, polyimide, or precursor solution waste in high-throughput coating lines. Unlike conventional spin coaters that discard excess liquid, our system integrates customizable edge bead removal (EBR) recycling, low dead-volume dispense lines, and pre-wet optimization logic to reduce material consumption by 25-40%.
Each of the 24 stations operates with independent closed-loop monitoring of solution usage. The machine learns the minimum volume needed for uniform coverage, then automatically adjusts dispense amounts per substrate. Combined with customizable solvent recovery bowls, the system collects over 85% of unspun chemical for refiltration or disposal, significantly lowering cost-of-ownership.
All 24 stations are controlled by a central PLC+HMI, and the unit supports recipe-per-station customization - allowing different materials, spin curves, and saving strategies on adjacent stations simultaneously.
Technical Parameters
| Parameter |
Standard Value |
Customizable Range (Material-Saving Focus) |
| Number of stations |
24 |
12 / 16 / 24 / 32 (customizable) |
| Max substrate size |
200 mm diameter or 156×156 mm square |
50 - 300 mm (customizable chuck for low edge loss) |
| Spin speed range |
0 - 6000 rpm |
0 - 8000 rpm (low-waste soft acceleration) |
| Material saving rate |
30% average |
10% - 50% (customizable dispense logic) |
| Minimum dispense volume per substrate |
1.5 mL (for 150 mm wafer) |
0.5 - 5 mL (customizable nozzle design) |
| Dead volume in fluid path |
< 0.3 mL |
< 0.1 mL (custom tubing & valve) |
| EBR solvent saving mode |
Standard edge cut only |
User-defined EBR pattern (customizable) |
| Coating uniformity |
< ±3% @3000 rpm |
±2% with material-saving low spin speed |
| Waste chemical collection efficiency |
85% |
Up to 92% (custom bowl with drain design) |
| Chemical replenishment alert |
Manual |
Auto refill with consumption tracking (customizable) |
| Power supply |
400V / 50 Hz / 3P |
208V - 480V (customizable) |
| Machine footprint (W×D×H) |
2100 × 1200 × 1900 mm |
customizable width/depth for cleanroom fit |
Production Line Composition
When integrated into a material-efficient coating line, the 24-station spin coater is combined with:
- Low dead-volume chemical dispense system - 1-12 bottles with <0.5 mL residual each
- Pre-wet station - uses recycled solvent to pre-wet substrates (saving fresh material)
- 24-station spin coater - main unit with material-saving bowls
- Edge bead remover (EBR) with solvent recovery - customizable cut width and speed
- Post-coating bake & cooling - optional
- Chemical recycling unit - filtration + re-mixing for non-critical layers
- Exhaust with solvent condensation trap - recovers evaporated solvent (>70%)
Applications
- Semiconductor photoresist coating - cost-sensitive fabs (memory, logic, power devices)
- Perovskite solar cells - expensive precursor solutions (Pb, organic halides)
- OLED/QLED hole injection layer - costly PEDOT:PSS or polymer inks
- R &D pilot lines - where material quantity is limited
- MEMS & microfluidics - SU-8, BCB, and other high-cost polymers
- Lithium battery coating - slurry savings on separator or electrode
- Any production line where coating chemical cost > $100/L
Customization for Maximum Material Saving
This 24-station spin coater is highly customizable to achieve the best raw material economy:
- Dispense nozzle type - needle, slit, or spray - customizable to match solution viscosity
- Dispense volume logic - fixed, dynamic, or AI-assisted minimum-volume learning
- Edge bead removal (EBR) pattern - position, width, speed, and solvent recycling on/off
- Bowl drain design - smooth bore vs. ribbed - affects recovery rate
- Solvent recovery system - integrated distillation or simple collection drum
- Chemical line material - PP, PTFE, or stainless steel (prevents adsorption loss)
- Backside rinse - optional, with dedicated low-flow nozzle
- Pre-wet program - solvent type, volume, spin speed - fully customizable per station
- Reporting - material usage per shift/week - customizable dashboard
"Every drop of chemical is accounted for - and every saving method can be customized to your process."
Material Saving Features
- Intelligent minimum volume detection - automatically reduces dispense by 5% steps until uniformity fails
- Closed-loop waste tracking - real-time display of material saved per 1000 substrates
- Low dead-volume fluid manifold - <0.3 mL total residual (standard competitors: 2-5 mL)
- EBR solvent recycling loop - used edge-bead solvent filtered and reused for pre-wet
- Individual station calibration - each nozzle volume can be trimmed separately
- Alerts for over-dispense - stops line if chemical usage exceeds recipe threshold by >15%
- Vacuum chuck optimization - minimizes edge exclusion zone, saving material on large substrates
- Nozzle drip catcher - prevents single drop loss during index
Support and Services
- Free material saving audit - we analyze your current waste and estimate saving potential
- 24/7 remote support - for dispense tuning and saving logic
- On-site calibration - optional (2 days), including nozzle volume and EBR pattern
- 12-month warranty - extended to 24 months if you share monthly saving data with us
- Spare parts - quick-ship program for nozzles, valves, and tubing
- Software update - new saving algorithms provided free for 2 years
Packing and Shipping
| Item |
Method |
| Packing |
Chemical-compatible wrapping + desiccant + fumigated plywood crate |
| Protection for fluid path |
Purged with N₂ and capped to prevent residue drying |
| Shipping term |
FOB / CIF / EXW (Shanghai / Shenzhen) |
| Lead time |
45 - 55 working days (customized: +15 days) |
| Transport |
40' HC container (1 unit) or air freight for urgent orders |
| Documents |
CE declaration, material saving validation report, maintenance guide |
Frequently Asked Questions
Q1: How exactly does the machine save material compared to a standard spin coater?
A: Three ways: ① smallest possible dispense (customizable per material), ② EBR solvent reuse for pre-wet, and ③ low dead-volume plumbing (no chemical left in long tubes). Typical saving is 30-40% by weight.
Q2: Can I use the same customized saving recipe on all 24 stations?
A: Yes - or you can customize per station. Example: station 1-6 use low-cost resist with no saving priority, station 7-24 use expensive resist with aggressive saving.
