Printed Electronics & Flexible Hybrid Systems
Rotary Screen Printing for Flexible Electronics & Conductive Trace Calculator
Model wet and dry conductive ink deposit thickness ($T_{\text{wet}}, T_{\text{dry}}$), lateral slump spread choke, and electroformed nickel mesh prepress vectors for roll-to-roll printed electronics.
1. Input Parameters
Emulsion-over-mesh governs wet deposit gasketing and edge acuity.
High-solids silver flake and nanoparticle conductive inks.
2. Calculation Results
Theoretical Open Area ($A_{\text{open}}$)
30.2 %
Wet Deposit Thickness ($T_{\text{wet}}$)
34.6 µm
Dry Sintered Thickness ($T_{\text{dry}}$)
20.1 µm
Prepress Screen Vector Width ($W_{\text{vector}}$)
108.5 µm
3. Dynamic Visualizer & CAM Preview
4. Engineering Notes & Physics Specifications
Continuous Roll-to-Roll (R2R) rotary screen printing on flexible substrates (PET, PI, PEN) demands accurate modeling of screen open volume, hydrodynamic squeegee lift, and lateral ink slump.
- Theoretical Wet Thickness:
T_wet = (T_mesh · A_open%) + EOM. High-viscosity shear-thinning conductive pastes transfer 50%–70% of the mesh open volume onto the substrate. - Prepress Line Choke (Lateral Slump):
W_vector = W_target - 2 · Δw_spread. Because fluid ink spreads under capillary action prior to thermal/photonic sintering, CAD vector traces must be choked by 8–15 µm per side. - Rotary Circumferential Stretch:
C = π · (D_screen + 2 · T_total). Vector artworks must be unrolled with cylindrical radius scaling to prevent pitch mismatch on multi-station R2R lines.
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