Solid-state optical device
View Patent ↗A solid-state optical device having: a solid-state element; a power supplying/retrieving portion that supplies or retrieves electric power to/from the solid-state element; and a glass sealing material that seals the solid-state element. The glass sealing material is made of a P 2 O 5 —ZnO-based low-melting glass that has 45 to 50 wt % of P 2 O 5 and 15 to 35 wt % of ZnO.
1. A solid-state optical device, comprising:
a solid-state element;
a power supplying/retrieving portion on which the solid-state element is mounted, the power supplying/retrieving portion supplying or retrieving electric power to/from the solid-state element; and
a glass sealing material that seals the solid-state element,
wherein the glass sealing material has a thermal expansion coefficient equivalent to that of the power supplying/retrieving portion, and
wherein the glass sealing material comprises a B 2 O 3 —SiO 2 —Na 2 O—ZnO—Nb 2 O 5 -based low-melting glass that comprises 19 to 30 wt % of B 2 O 3 , 0.5 to 15 wt % of SiO 2 , 1.5 to 8 wt % of Na 2 O, 44 to 60 wt % of ZnO, and 9 to 19 wt % of Nb 2 O 5 in weight %.
2. The solid-state optical device according to claim 1 , wherein:
the low-melting glass further comprises 0 to 5 wt % of Al 2 O 3 , 0 to 3 wt % of Li 2 O, 0 to 4 wt % of K 2 O, 0 to 5 wt % of MgO, 0 to 5 wt % of CaO, 0 to 5 wt % of SrO, 0 to 5 wt % of BaO, 0 to 4 wt % of ZrO 2 , and 0 to 4 wt % of TiO 2 in weight %.
3. The solid-state optical device according to claim 1 , wherein:
the low-melting glass has a thermal expansion coefficient equivalent to that of the solid-state element.
4. The solid-state optical device according to claim 1 , wherein:
the solid-state element is flip-chip mounted.
5. The solid-state optical device according to claim 1 , wherein:
the power supplying/retrieving portion comprises an inorganic material substrate that comprises a conductive pattern to supply or retrieve electric power to/from the solid-state element, and
the glass sealing material has a thermal expansion coefficient equivalent to that of the inorganic material substrate.
6. The solid-state optical device according to claim 1 , wherein:
the glass sealing material comprises a coating, which effects a moisture resistance and acid/alkali resistance, formed on a surface thereof.
7. The solid-state optical device according to claim 1 , wherein:
the solid-state element comprises an optical element, and
the glass sealing material comprises a light-transmitting material.
8. The solid-state optical device according to claim 1 , wherein:
the glass sealing material is over molded with a resin.