Experimental.(Hot embossing in microfabrication, part 1)(Statistical Data Included): An article from: Polymer Engineering and Science
Book Details
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB0008F4XL4
ISBN-13978B0008F4XL6
AvailabilityAvailable for download now
Sales Rank13,237,794
MarketplaceUnited States 🇺🇸
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on March 1, 2002. The length of the article is 3957 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: The relationship among processing conditions, material properties, and part quality in hot embossing was investigated for three optical polymers: polycarbonate (PC), polymethyl methacrylate (PMMA), and polyvinyl butyral (PVB). A series of systematic embossing experiments was conducted using mold inserts having either single or multiple feature depths. The feature dimensions varied from 90 to 3000 [mu]m. The processing conditions studied include embossing pressure, thermal cycles, and heating methods. The displacement profile, replication accuracy and molded-in stresses were measured experimentally. It was found that for isothermal embossing, both replication accuracy and birefringence pattern depend strongly on the processing conditions. For non-isothermal embossing, the molded parts showed excellent replication as long as the feature transfer was completed. The flow pattern under isothermal embossing resembles a biaxial extensional flow. Under non-isothermal embossing, the polymer deformation involves an upward flow along the wall of mold features, followed by downward compression and outward squeezing. Rheological characterization and hot embossing analysis are presented in Part II.
Citation Details
Title: Experimental.(Hot embossing in microfabrication, part 1)(Statistical Data Included)
Author: Yi-Je Juang
Publication:Polymer Engineering and Science (Refereed)
Date: March 1, 2002
Publisher: Society of Plastics Engineers, Inc.
Volume: 42 Issue: 3 Page: 539(12)
Article Type: Statistical Data Included
Distributed by Thomson Gale
From the author: The relationship among processing conditions, material properties, and part quality in hot embossing was investigated for three optical polymers: polycarbonate (PC), polymethyl methacrylate (PMMA), and polyvinyl butyral (PVB). A series of systematic embossing experiments was conducted using mold inserts having either single or multiple feature depths. The feature dimensions varied from 90 to 3000 [mu]m. The processing conditions studied include embossing pressure, thermal cycles, and heating methods. The displacement profile, replication accuracy and molded-in stresses were measured experimentally. It was found that for isothermal embossing, both replication accuracy and birefringence pattern depend strongly on the processing conditions. For non-isothermal embossing, the molded parts showed excellent replication as long as the feature transfer was completed. The flow pattern under isothermal embossing resembles a biaxial extensional flow. Under non-isothermal embossing, the polymer deformation involves an upward flow along the wall of mold features, followed by downward compression and outward squeezing. Rheological characterization and hot embossing analysis are presented in Part II.
Citation Details
Title: Experimental.(Hot embossing in microfabrication, part 1)(Statistical Data Included)
Author: Yi-Je Juang
Publication:Polymer Engineering and Science (Refereed)
Date: March 1, 2002
Publisher: Society of Plastics Engineers, Inc.
Volume: 42 Issue: 3 Page: 539(12)
Article Type: Statistical Data Included
Distributed by Thomson Gale
More Books by Yi-Je Juang, L. James Lee, Kurt W. Koelling
