Abstract:
PURPOSE: A micro-optical component which is built in a substrate and a method for manufacturing thereof, and a micro-optical component array and a method for manufacturing thereof are provided to reduce a time and a trouble required for a post-processing through an etching process of a main substrate and a glass heat reflow process. CONSTITUTION: A micro-optical component which is built in a substrate and a method for manufacturing thereof, and a micro-optical component array and a method for manufacturing thereof comprise the following steps: a micro-optical component etches built-in main substrates (10, 20, 30, 50) according to an etch mask pattern, and forms more than one cavity (11, 21, 31, 51); glass substrates (12, 22, 32, 35, 52) are welded to an upper part of the main substrate in which the cavity is formed; a primary glass heat reflow process is performed so that a glass of the glass substrate fills up more than one cavity; an upper part and a lower part of the main substrate in which the glass is filled are etched, and more than one micro-optical component which is built in the main substrate is manufactured; and when the micro-optical component is micro glass lenses (14, 34), the more than one cavity forming step aims to etch the main substrate perpendicularity in order to form a cavity of a concave pillar type. [Reference numerals] (a) Vertically edge a main substrate; (b) Make the heat of glass flow again; (c) Manufacture a glass pole; (d) Manufacture a glass lens
Abstract:
According to an embodiment of the present invention, in a method for fabricating an optical device having a micro lens, an optical device fabricating method comprises a step of bonding a first glass substrate to a main substrate formed with a first cavity; a step of filling the cavity with glass by a first thermal reflow process; a step of forming a glass column from the glass filled in the cavity; a step of forming a micro lens from the glass column by a second thermal reflow process; and a step of forming a driving apparatus of an optical device on the main substrate. [Reference numerals] (AA) Start; (BB) End; (S110) Etch a silicon substrate; (S120) Bond glass to the silicon substrate; (S130) First thermal reflow; (S140) Form a glass column; (S150) Form a lens by a second thermal reflow process; (S160) Wet etch the glass; (S170) Anodic bonding; (S180) Polish the silicon substrate and deposit a mask; (S190) Etch the silicon substrate; (S200) Package