Chao-Yaug LIAO Product Model Creation and Simulation for Two-photon Polymerization Micro-manufacturing

...................................................................................................................... xv Résumé .................................................................................................................... xvii 摘 要 ......................................................................................................................xix Introduction ................................................................................................................... 1 Chapter 1 State of art of micro-product fabrication and their integration in a design process ......................................................................................... 3 1.1 Two-photon polymerization micro-manufacturing technique ................................. 3 1.1.1 The principle of TPP ...................................................................................... 3 1.1.2 Spatial resolutions (Voxel) of the TPP process .............................................. 6 1.1.3 Comparison between TPP and general silicon-based micromachining technologies ........................................................................ 7 1.1.4 Main technological characteristics of the micro-product manufacturing process with TPP ................................................................... 9 1.1.5 Process flow of TPP micro-fabrication through the concept of product view ................................................................................................ 12 1.2 Analysis of existing approaches for TPP micro-fabrication .................................. 14 1.2.1 TPP applications for families of micro-products .......................................... 14 1.2.2 Integrated manufacturing systems for the TPP process................................ 16 1.3 Layered Manufacturing (LM) ................................................................................ 17 1.3.1 Staircase effect and deposition inaccuracies in a LM process ...................... 18 1.3.2 Other micro-manufacturing processes using LM technique ......................... 20 1.4 Geometric representations for a product model ..................................................... 22 1.4.1 Boundary representation (B-Rep) ................................................................. 23 te l-0 04 17 79 9, v er si on 1 17 S ep 2 00 9 vi Table of contents 1.4.2 Non-manifold representation ........................................................................ 24 1.4.3 Polyhedral representation ............................................................................. 26 1.5 Major data exchange formats ................................................................................. 28 1.5.1 Stereo Lithography (STL) ............................................................................ 28 1.5.2 STandard for the Exchange of Product model data (STEP) ......................... 30 1.6 CAD model of components obtained through a reverse engineering process .................................................................................................................... 33 1.7 Texture mapping a component ............................................................................... 35 1.8 Simulation operations for TPP micro-fabrication .................................................. 36 1.8.1 Basic intersection algorithms ....................................................................... 36 1.8.2 Laser beam trajectory planning strategies .................................................... 37 1.8.3 Critical issues for preventing microstructure collapses brought by CSM ............................................................................................................. 38 1.8.4 Critical issues of a slicing process brought by CSM .................................... 39 1.8.5 Issues related to scanning path planning ...................................................... 41 1.9 Conclusion ............................................................................................................. 42 Chapter 2 Product view interface for color models acquired through a reverse engineering process ........................................................................ 45 2.