Substrae for optical parts surface installation, making method and asembly of said substrate

Abstract

The present invention provides a substrate for surface mounting of optical components made of glass, a manufacturing method thereof, and an assembly using the substrate. It has excellent dimensional accuracy, suppresses disadvantages caused by differences in thermal expansion between optical components and packages, etc., and contacting components, and can improve workability during surface mounting of optical components. This substrate 1 for mounting an optical component surface made of glass is used to mount a plurality of optical components having different diameters to respective relative positions corresponding thereto, and is formed with a substrate for mounting an optical component having a smaller diameter among the plurality of optical components. At the same time as the groove 2 for fixing the first optical component, V-shaped grooves 3a, 3b are formed on both sides of the groove 2 for fixing the first optical component; The outer slope parts 4a, 4b form a second optical component fixing groove 5 as an outer groove; the second optical component fixing groove 5 is used to fix the optical component with a larger diameter among the above-mentioned plurality of optical components.

Description

technical field [0001] The present invention relates to a substrate for surface mounting of optical components, a manufacturing method thereof, and an assembly using the substrate. Background technique [0002] Since the connection of optical components requires very high precision, it is an operation requiring many steps. [0003] As one solution to the above-mentioned problems, a method has been proposed in which the surface of an optical component is mounted on a substrate having a guide for placing an optical component (substrate for surface mounting of an optical component) for relative positioning. . [0004] For example, as an example of a substrate for surface mounting of optical components, as shown in FIG. and lens fixing groove 54; but, because when the diameters of the connected optical components are different, grooves with different sizes must be formed respectively, so that the central positions of the strip lens 15 and the fiber 16 remain consistent, and th...

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Problems solved by technology

[0009] Due to the above circumstances, recently, studies have been conducted on the use of materials other than silicon, such as glass (in particular, glass), to produce substrates for surface mounting of optical components. However, when glass is used to form substrates such as Figure 10 For the second groove like 54, it cannot be processed by ordinary grinding, so it is produced by electric discharge or ultrasonic machining. At present, due to the poor processing dimensional accuracy, which is about tens of μm, it is difficult to be used in practice.

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