Fabricating diffractive elements for mid-IR optics using the hot embossing technology

2021 ◽  
Author(s):  
R. Kasztelanic ◽  
I. Kujawa ◽  
R. Stepien ◽  
R. Buczynski
Keyword(s):  
Hot Embossing

Ultrasonic Vibration Hot Embossing

2005 ◽  
Vol 20 (4) ◽  
pp. 449-452 ◽  
Author(s):  
S.-J. Liu ◽  
Y.-T. Dung
Keyword(s):  
Ultrasonic Vibration ◽  
Hot Embossing

Development and characterization of AISI 316L micro parts produced by metal powder hot embossing

2021 ◽  
Vol 113 (1-2) ◽  
pp. 407-417
Author(s):  
Omid Emadinia ◽  
Maria Teresa Vieira ◽  
Manuel Fernando Vieira
Keyword(s):  
Metal Powder ◽  
Hot Embossing ◽  
Aisi 316L ◽  
Micro Parts

Water-repellent hierarchical microstructured PTFE films via micro powder hot embossing

2021 ◽  
pp. 117261
Author(s):  
Jie Gao ◽  
Yujun Deng ◽  
Linfa Peng ◽  
Peiyun Yi ◽  
Zhongqin Lin
Keyword(s):  
Hot Embossing ◽  
Water Repellent

Structuring of solution processed and thermally evaporated As33S67 thin films by soft stamp hot embossing method

2021 ◽  
Vol 559 ◽  
pp. 120674
Author(s):  
Michal Kurka ◽  
Karel Palka ◽  
Jiri Jancalek ◽  
Stanislav Slang ◽  
Miroslav Vlcek
Keyword(s):  
Thin Films ◽  
Hot Embossing ◽  
Solution Processed

Hot embossing of micrographic elements in polypropylene

2007 ◽  
Vol 84 (1) ◽  
pp. 109-113 ◽  
Author(s):  
Patrick W. Leech ◽  
Robert A. Lee ◽  
Brett A. Sexton ◽  
Fiona Smith
Keyword(s):  
Hot Embossing

FABRICATION OF POLYMER MASTER FOR ANTIREFLECTIVE SURFACE USING HOT EMBOSSING AND AAO PROCESS

2008 ◽  
Vol 22 (31n32) ◽  
pp. 5887-5894 ◽  
Author(s):  
HONG GUE SHIN ◽  
JONG TAE KWON ◽  
YOUNG HO SEO ◽  
BYEONG HEE KIM
Keyword(s):  
Aspect Ratio ◽  
Silicon Layer ◽  
Processing Parameters ◽  
Hot Embossing ◽  
Large Area ◽  
Anodized Aluminum ◽  
Simple Method ◽  
Anodized Aluminum Oxide ◽  
Coating Method ◽  
Automobile Components

A simple method for the fabrication of polymer master for antireflective surface is presented. In conventional fabrication methods for antireflective surface, coating method with low refractive index have usually been used. However, it is required to have a high cost and a long processing time for mass production. In this paper, antireflective surface was fabricated by using hot embossing process with porous anodized aluminum oxide. Through multi-AAO and etching processes, nano patterned master with high aspect ratio was fabricated at the large area. Size and aspect ratio of nano patterned master are about 175 ± 25 nm and 2 ~ 3, respectively. In order to replicate nano patterned master, hot embossing process was performed by varying the processing parameters such as temperature, pressure and embossing time etc. Finally, antireflective surface can be successfully obtained after etching process to remove selectively silicon layer of AAO master. Optical and rheological characteristics of antireflective surface were analyzed by using SEM, EDX and spectrometer inspection. Antireflective structure by replicating hot embossing process can be applied to various displays and automobile components.

scholarly journals A Simple Method for Rapid Manufacturing Large-area Hot Embossing Rapid Toolings and its Application

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
Chil-Chyuan KUO ◽  
Min-Hsiang WU
Keyword(s):  
Hot Embossing ◽  
Rapid Manufacturing ◽  
Large Area ◽  
Simple Method

scholarly journals Measurement and Process Control in Precision Hot Embossing

2013 ◽  
Author(s):  
Maia R. Bageant ◽  
David E. Hardt
Keyword(s):  
Process Control ◽  
Material Properties ◽  
Disturbance Rejection ◽  
Closed Loop ◽  
Hot Embossing ◽  
Commercial Production ◽  
Bulk Deformation ◽  
Functional Tests ◽  
Medical Field ◽  
High Degree

Microfluidic technologies hold a great deal of promise in advancing the medical field, but transitioning them from research to commercial production has proven problematic. We propose precision hot embossing as a process to produce high volumes of devices with low capital cost and a high degree of flexibility. Hot embossing has not been widely applied to precision forming of hard polymers at viable production rates. To this end we have developed experimental equipment capable of maintaining the necessary precision in forming parameters while minimizing cycle time. In addition, since equipment precision alone does not guarantee consistent product quality, our work also focuses on real-time sensing and diagnosis of the process. This paper covers both the basic details for a novel embossing machine, and the utilization of the force and displacement data acquired during the embossing cycle to diagnose the state of the material and process. The precision necessary in both the forming machine and the instrumentation will be covered in detail. It will be shown that variation in the material properties (e.g. thickness, glass transition temperature) as well as the degree of bulk deformation of the substrate can be detected from these measurements. If these data are correlated with subsequent downstream functional tests, a total measure of quality may be determined and used to apply closed-loop cycle-to-cycle control to the entire process. By incorporating automation and specialized precision equipment into a tabletop “microfactory” setting, we aim to demonstrate a high degree of process control and disturbance rejection for the process of hot embossing as applied at the micron scale.

Comparison of different molds (epoxy, polymer and silicon) for microfabrication by hot embossing technique

2012 ◽  
Vol 163 (1) ◽  
pp. 233-241 ◽  
Author(s):  
R.K. Jena ◽  
C.Y. Yue ◽  
Y.C. Lam ◽  
P.S. Tang ◽  
A. Gupta
Keyword(s):  
Epoxy Polymer ◽  
Hot Embossing
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