Non-invasive blood glucose monitoring device and manufacturing method thereof
The invention provides a manufacturing method for a non-invasive blood glucose monitoring device, which comprises the following steps: providing a substrate; performing an injection molding process or an electroplating process, to form at least one light-blocking wall on the substrate, wherein each light-blocking wall includes a lower wall-structure and an upper wall-structure, and the lower wall-structure connects the substrate and the upper wall-structure connects the lower wall-structure; arranging a light-emitting element and a light-receiving element on the substrate and separating the light-emitting element and the light-receiving element by the at least one light-blocking wall; forming a packaging structure on the substrate in which the light-emitting element and the light-receiving element are packaged; and disposing a transparent cover on the packaging structure and the at least one light-blocking wall and limiting the transparent cover to a configuration height by the at least one light-blocking wall.
1 . A manufacturing method for a non-invasive blood glucose monitoring device, comprising steps of:
providing a substrate,
performing an injection molding process or an electroplating process, to form at least one light-blocking wall on the substrate, wherein each light-blocking wall includes a lower wall-structure and an upper wall-structure, and the lower wall-structure connects the substrate and the upper wall-structure connects the lower wall-structure,
arranging a light-emitting element and a light-receiving element on the substrate and separating the light-emitting element and the light-receiving element by the at least one light-blocking wall,
forming a packaging structure on the substrate in which the light-emitting element and the light-receiving element are packaged, and
disposing a transparent cover on the packaging structure and the at least one light-blocking wall and limiting the transparent cover to a configuration height by the at least one light-blocking wall,
wherein a width of the lower wall-structure is wider than a width of the upper wall-structure, so that a limit structure for setting the transparent cover is formed by a width difference between the lower wall-structure and the upper wall-structure, and
a height of the upper wall-structure equals a height of the transparent cover.
2 . The manufacturing method for a non-invasive blood glucose monitoring device as claimed in claim 1 , wherein a thermoplastic polymer material is adopted to form the at least one light-blocking wall for the injection molding process.
3 . The manufacturing method for a non-invasive blood glucose monitoring device as claimed in claim 1 , wherein a metal material or an alloy material is adopted to form the at least one light-blocking wall for the electroplating process.
4 . The manufacturing method for a non-invasive blood glucose monitoring device as claimed in claim 1 , wherein the width of the lower wall-structure is two to three times of the width of the upper wall-structure.
5 . The manufacturing method for a non-invasive blood glucose monitoring device as claimed in claim 1 , wherein a width of the lower wall-structure is between 100 μm and 300 μm and a width of the upper wall-structure is between 50 μm and 100 μm.
6 . The manufacturing method for a non-invasive blood glucose monitoring device as claimed in claim 1 , wherein the packaging structure and the lower wall-structure have the same height.
7 . The manufacturing method for a non-invasive blood glucose monitoring device as claimed in claim 1 , wherein each of the light-blocking wall forms a staged and three-dimensional structure through the upper wall-structure and the lower wall-structure.
8 . The manufacturing method for a non-invasive blood glucose monitoring device as claimed in claim 1 , wherein a light transmittance of each of the at least one light-blocking wall is not greater than 5%, or a light reflectance of each of the at least one light-blocking wall is not less than 95%.