SLAAEP2 January   2026 ULC1001

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Acronyms
  5. 2Introduction
  6. 3Simulation Environment
  7. 4Simulation of Lens
  8. 5Simulation of Piezo Transducer
  9. 6Simulation of Lens Cover System (LCS)
    1. 6.1 Physics and Boundary Conditions
      1. 6.1.1 Glue
      2. 6.1.2 Thin Film
      3. 6.1.3 Housing
    2. 6.2 Results
  10. 7Resources

6.1.2 Thin Film

TI uses polyamide as the thin film in the LCS-FL-RNG15. The material properties of the thin film are listed in the Table 6-4.

Table 6-2 Material Properties of Thin Film

Parameter

Unit

Value

Young's modulus

GPa

2.5

Density

Kg/m3

1420

Poisson's ratio

1

0.34

The thin film, together with the housing and the lens, is all modeled by the linear elastic material, with an isotropic damping factor of 0.005. The setting is shown in Figure 6-3.

Linear Elastic Model for Thin FilmFigure 6-3 Linear Elastic Model for Thin Film