Patent ID: 8069455
Filing Date: 2011-11-29
Classification: G11B,H05K

Abstract:
1. An optical disk apparatus comprising: a first printed circuit board having a first circuit pattern formed thereon; a rotor configured to have an optical disk placed thereon and electrically connected with the first circuit pattern; a second printed circuit board stacked adjacent to the rotor on a surface of the first printed circuit board and having a second circuit pattern and a through-hole formed thereon, the through-hole electrically connecting the first circuit pattern with the second circuit pattern; a sensor unit mounted on the second printed circuit board in electrical connection with the second circuit pattern and configured to sense a rotation of the optical disk; and a support plate supporting the first printed circuit board and the rotor, wherein the second circuit pattern is formed on an upper surface of the second printed circuit board and is electrically connected with the sensor unit directly, and wherein the second printed circuit board is placed on an upper surface of the first printed circuit board, and the through-hole penetrating through the second printed circuit board directly connects the first circuit pattern with the second circuit pattern.