In-process measurement for cure depth control of nano stereolithography using evanescent light

被引：2

作者：

Takahashi, S. ^{[1
]}

Kong, D. ^{[1
]}

Michihata, M. ^{[1
]}

Takamasu, K. ^{[2
]}

机构：

[1] Univ Tokyo, Res Ctr Adv Sci & Technol, Meguro Ku, Komaba 4-6-1, Tokyo 1538904, Japan

[2] Univ Tokyo, Dept Precis Engn, Bunkyo Ku, Hongo 7-3-1, Tokyo 1138656, Japan

来源：

CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2019年 / 68卷 / 01期

关键词：

In-process measurement; Stereo lithography; Nano manufacturing;

D O I：

10.1016/j.cirp.2019.04.072

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

One shot layer by layer microstereolithography using evanescent light is regarded as one of the potential methods to achieve a spatial process resolution of submicrometer, meeting a demand for the next-generation nano/micro 3D manufacturing. However, there is a critical problem that curing phenomena by evanescent light is too sensitive to detailed exposure condition such as temperature of photosensitive resin, dynamic diffusion of free radicals, dissolved oxygen, and so on. To solve this critical problem, we developed an in-process evaluation method for potential cured thickness by evanescent light and experimentally succeeded in cure depth control with a layer thickness of submicrometer during its curing process. (C) 2019 Published by Elsevier Ltd on behalf of CIRP.

引用

页码：527 / 530

页数：4