Synthetic quartz glass lid and optical device package

Patent metadata

Field	Value
Publication number	US-10756239-B2
Application number	US-201715666896-A
Country	US
Kind code	B2
Filing date	Aug 2, 2017
Priority date	Aug 3, 2016
Publication date	Aug 25, 2020
Grant date	Aug 25, 2020

Abstract

A synthetic quartz glass lid is provided comprising a synthetic quartz glass and an adhesive formed on a periphery of a main surface of the window member. Further, an optical device package is provided comprising a box-shaped receptacle having an open upper end, an optical device received in the receptacle, and a window member of synthetic quartz glass bonded to the upper end of the receptacle with an adhesive. The adhesive is a low-melting metallic glass consisting of Te, Ag and at least one element selected from W, V, P, Ba, and Zr.

First claim

The invention claimed is:

1. A synthetic quartz glass lid comprising
a window member of synthetic quartz glass, and
an adhesive formed on and directly contacting with a periphery of a main surface of the window member, wherein
said adhesive is a low-melting metallic glass that has a form of an alloy consisting essentially of tellurium, silver and at least one element selected from the group consisting of phosphorus, barium, and zirconium.

2. The synthetic quartz glass lid of claim 1 wherein the low-melting metallic glass contains 50 to 70% by weight of tellurium and silver combined.

3. The synthetic quartz glass lid of claim 1 wherein the low-melting metallic glass has a glass transition temperature of 100 to 450° C.

4. The synthetic quartz glass lid of claim 1 wherein the window member is of plate shape, spherical shape having a convex or concave contour, or non-spherical shape having a convex or concave contour.

5. The synthetic quartz glass lid of claim 1 wherein the window member has a thickness of 0.1 to 5 mm.

6. An optical device package comprising
an optical device,
a box-shaped receptacle having an open upper end, the optical device being received in the receptacle, and
the synthetic quartz glass lid of claim 1 , wherein
the window member of synthetic quartz glass is bonded to the upper end of the receptacle with the adhesive to cover the receptacle.

7. The package of claim 6 wherein the optical device emits light of wavelength up to 300 nm.

8. The synthetic quartz glass lid of claim 1 wherein the alloy has disordered crystalline structure.

Assignees

• Shinetsu Chemical Co

Inventors

• Matsui Harunobu
• Harada Daijitsu
• Takeuchi Masaki

Classifications

• H10H20/85

  Packages · CPC title

• H10H20/8506 Primary

  Containers · CPC title

• H10H20/854 Primary

  characterised by their material, e.g. epoxy or silicone resins · CPC title

• G02B5/02

  Diffusing elements; Afocal elements · CPC title

• C03C27/00 Primary

  Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing (C03C17/00 takes precedence; layered structures comprising at least one glass sheet B32B17/00; wired glass C03B; joining glass to ceramics C04) · CPC title