Change search
ReferencesLink to record
Permanent link

Direct link
Spin coating of Blu-Ray disks: modeling, experiments, limitations, and manipulation
KTH, School of Engineering Sciences (SCI), Mechanics.
KTH, School of Engineering Sciences (SCI), Mechanics.
KTH, School of Engineering Sciences (SCI), Mechanics.
2010 (English)In: JCT Research, ISSN 1547-0091, E-ISSN 1935-3804, Vol. 7, no 3, 315-323 p.Article in journal (Refereed) Published
Abstract [en]

A major challenge in the production of Blu-Ray Disks (BDs) is making the cover layer over the information area. The layer has to be both thick enough to protect the information and even enough for the information to be read through it optically. Furthermore, it is preferred not to cover the hole in the center of the disk. Spin coating is a candidate method for the production of these layers in a rapid reproduction process. When dispensing is performed off-center (in order not to cover the hole), a new complication appears, namely the formation of a slope toward the inner rim of the liquid film. Here, fundamental limitations for achieving even films in this system and ways to overcome the difficulties by manipulation of the process are studied. A mathematical model for this particular case of spin coating is obtained and validated by comparison with experiments made in industrial equipment aiming at producing BDs. The model agrees well with the experimental data. The model is then used to show that cover layers that fulfil the Blu-Ray specification are very difficult to produce with the spin-coating technique. Manipulation by inline curing and surface shear is added to the model and the results show that it is considerably easier to meet the BD specification when utilizing the manipulation.

Place, publisher, year, edition, pages
2010. Vol. 7, no 3, 315-323 p.
Keyword [en]
Spin coating, Blu-Ray disk
National Category
Natural Sciences
URN: urn:nbn:se:kth:diva-27297DOI: 10.1007/s11998-009-9204-2ISI: 000278927000004ScopusID: 2-s2.0-77954951398OAI: diva2:376901
QC 20101213Available from: 2010-12-13 Created: 2010-12-09 Last updated: 2010-12-13Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Tammisola, OutiLundell, FredrikHellstrom, Georg
By organisation
In the same journal
JCT Research
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 28 hits
ReferencesLink to record
Permanent link

Direct link