| 摘要 |
<p>The device (1) has a bottom layer (2), a top layer (3) and an intermediate layer (4) incorporating a mobile part (6) with respect to different layers of substrate. The bottom and top layers incorporate raised patterns formed of rails (7a, 7b) and studs. The patterns are evenly spaced over the bottom and the top layers such that the mobile part is maintained in equilibrium between the patterns of the bottom and the top layers. The patterns of the bottom layer are in contact with a lower face of the mobile part, and the patterns of the top layer contact an upper face of the mobile part.</p> |
