Optical device and optical apparatus
View Patent ↗An optical device according to the present invention includes a device substrate, a translucent member, an optical element chip and a conductive portion. On a surface of the device substrate, an opening is provided so as to extend substantially in the vertical direction with respect to a surface of the device substrate and pass through the device substrate, the translucent member is provided so as to cover a first opening mouth of the opening, and the optical element chip is provided so as to cover a second opening mouth thereof. Part of the conductive portion is exposed at the device substrate to form a terminal portion. The terminal portion is provided so as to be substantially flush with the surface of the device and serves as a mount portion to be directly mounted on the interconnect substrate.
1. An optical apparatus comprising:
an optical device including a device substrate having an opening, a conductive portion including a buried portion buried in the device substrate and a terminal portion extending from the buried portion and exposed at the device substrate, a translucent member provided so as to cover the opening from the upper side, and an optical element chip provided so as to cover the opening from the lower side, the optical element chip being electrically connected to the conductive portion; and
a wiring board having an accommodating portion,
wherein the optical element chip is accommodated in the accommodating portion.
2. The optical apparatus of claim 1 , wherein the terminal portion of the conductive portion is substantially flush with a surface of the device substrate and is a mount portion to be directly mounted on the wiring board.
3. The optical apparatus of claim 1 , wherein an electrical connection portion between the optical element chip and the conductive portion is encapsulated by an encapsulant.
4. The optical apparatus of claim 1 , wherein the accommodating portion is a concave portion formed in a surface of the wiring board.
5. The optical apparatus of claim 4 , wherein a semiconductor element chip is further accommodated in the accommodating portion.
6. The optical apparatus of claim 1 , wherein the accommodating portion is a through hole of the wiring board.
7. The optical apparatus of claim 6 , wherein the accommodating portion is encapsulated by an encapsulant.
8. The optical apparatus of claim 1 , wherein the opening of the optical device is a through hole.
9. The optical apparatus of claim 1 , wherein an optical element for emitting or receiving light formed in a surface of the optical element chip faces the translucent member.
10. The optical apparatus of claim 1 , wherein the terminal portion of the conductive portion mounts on the wiring board with a conductive adhesive.
11. The optical apparatus of claim 4 , wherein the accommodating portion is encapsulated by an encapsulant.
12. An optical apparatus comprising:
an optical device including a device substrate having an opening, a conductive portion including a buried portion buried in the device substrate and a terminal portion extending from the buried portion and exposed at the device substrate, a translucent member provided so as to cover the opening from the upper side, and an optical element chip provided so as to cover the opening from the lower side, the optical element chip being electrically connected to the conductive portion; and
a wiring board having an accommodating portion with at least the optical element chip accommodated therein,
wherein a maximum thickness of the optical apparatus is smaller than a sum of a maximum thickness of the optical device and a maximum thickness of the wiring board.
13. An optical apparatus comprising:
an optical device including a device substrate having an opening, a conductive portion including a buried portion buried in the device substrate and a terminal portion extending from the buried portion and exposed at the device substrate, a translucent member provided so as to cover the opening from the upper side, and an optical element chip provided so as to cover the opening from the lower side, the optical element chip being electrically connected to the conductive portion; and
a wiring board having an accommodating portion with at least the optical element chip accommodated therein,
wherein a light blocking member for blocking light into the optical element chip is provided in the accommodating portion.
14. The optical apparatus of claim 13 , wherein the light blocking member is part of the wiring board.
15. The optical apparatus of claim 13 , wherein the light blocking member is an encapsulant for encapsulating the accommodating portion.