| Material | Density (kg/m³) | Young’s Modulus (MPa) | Max Temp (°C) | Loss Factor @ 100 Hz | Best for | |----------|----------------|----------------------|---------------|----------------------|-----------| | Neoprene | 1200–1500 | 5–20 | 90 | 0.1 | General industrial | | EPDM | 1100–1300 | 3–15 | 120 | 0.12 | Outdoor/weather-resistant | | Silicone | 1100–1800 | 1–10 | 230 | 0.08 | High temp/cleanroom | | Polyurethane | 1100–1250 | 10–50 | 80 | 0.2 | Heavy loads, abrasion |
Geometric features (pyramids, channels, or periodic bumps) on the pad’s surface convert longitudinal waves into slower shear waves, increasing path length and viscoelastic loss. The loss factor ( \eta ) (ratio of dissipated to stored energy per cycle) for filled elastomers ranges from 0.05 to 0.3. wave pads
In the realm of advanced semiconductor design, are critical interface points on integrated circuits (ICs) that operate at extremely high frequencies, typically between 30 GHz and 300 GHz. | Material | Density (kg/m³) | Young’s Modulus
A wave pad acts as a spring-mass system. The mounted equipment (mass ( m )) sits on pads with total stiffness ( k ). The natural frequency ( f_n ) is: A wave pad acts as a spring-mass system