In Flexible Printed Circuit (FPC) multi-layer lamination and Coverlay bonding, ensuring uniform pressure and heat distribution across hundreds of micro-nodes is the key to yield. The Lamination Silicone Steel Pad serves as the central component of the lamination fixture, directly influencing thermal transfer efficiency and the quality of post-process release.
Material Science: Thermal Gradients and Stress Distribution Models The superior performance of Lamination Silicone Steel Pad stems from highly stable material properties and advanced surface treatments:
Steady-state Conduction and Fourier’s Law: During lamination, the plate must transfer heat rapidly and uniformly. This behavior follows Fourier’s Law: q = k * (dT / dx) (Pure text: q = k * (dT / dx), where q is heat flux, k is thermal conductivity, and dT/dx is the temperature gradient) Lixing utilizes alloy steels with high thermal diffusivity, minimizing surface temperature variance to prevent localized overheating.
High Flatness and Stress Uniformity: Even micro-scale flatness errors can cause uneven resin flow or circuit shifting. P = F / A (Pure text: P = F / A, Pressure equals total force divided by contact area)
Interface Chemistry and Release Properties: Resin (e.g., epoxy) flows under heat. Lixing’s composite coating technology controls the resin flow range and ensures easy release, extending tool life and reducing maintenance frequency.
Industrial Applications
FPC Multi-layer Lamination: Acts as the precision interface between buffer materials and circuit layers.
Coverlay Quick Lamination: Ensures residual-free micro-openings and maintains circuit flatness.
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