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Apparatus for embossing a flexible substrate with a pattern carried by an optically transparent compliant media

a flexible substrate and compliant technology, applied in the field of apparatus for embossing a flexible substrate, can solve the problems of inconvenient batch oriented wafer-based process, ineffective irradiation from the web side or the embossing shim side,

Inactive Publication Date: 2006-08-24
JEANS ALBERT H
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0009] Another advantage of the present invention is that the ultraviolet light source can be placed inside or outside of the belt material the compliant media is connected with. If a cylinder is used, then the ultraviolet light source can be placed or inside of or outside of the cylinder the compliant media is connected with.

Problems solved by technology

One disadvantage of the above apparatus is that if the web material and the embossing shim are opaque to ultraviolet light, then the irradiation will not be effective from the web side or the embossing shim side.
However, that process is a batch oriented wafer-based process that is not suitable for a roll-to-roll soft lithography process.

Method used

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  • Apparatus for embossing a flexible substrate with a pattern carried by an optically transparent compliant media
  • Apparatus for embossing a flexible substrate with a pattern carried by an optically transparent compliant media
  • Apparatus for embossing a flexible substrate with a pattern carried by an optically transparent compliant media

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Embodiment Construction

[0041] In the following detailed description and in the several figures of the drawings, like elements are identified with like reference numerals.

[0042] In FIGS. 38 through 47, an embossing apparatus that includes an optically transparent embossing belt or an optically transparent embossing drum is illustrated.

[0043] In FIGS. 1 through 37b, a method of making an optically transparent complaint media that can be connected with an optically transparent belt material or an optically transparent cylinder is illustrated.

[0044] As shown in the drawings for purpose of illustration, the present invention is embodied in an embossing apparatus. In one embodiment of the present invention, the embossing apparatus includes a flexible substrate with a coated side and a base side, a coating unit for depositing a photopolymer material having a first thickness on the coated side of the flexible substrate, and an embossing belt including an optically transparent belt material and an optically tra...

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Abstract

An apparatus for embossing a flexible substrate with an optically transparent compliant media is disclosed. The complaint media includes an optically transparent imprint stamp with an imprint pattern therein. The flexible substrate is coated with a photopolymer material. The compliant media can be connected with an optically transparent belt material to form an embossing belt or connected with an optically transparent cylinder to from an embossing drum. A coated side of the flexible substrate is urged into contact with the imprint stamp and the imprint pattern is embossed in the photopolymer material and an ultraviolet light passing through the compliant media contemporaneously cures the photopolymer material during the embossing.

Description

FIELD OF THE INVENTION [0001] The present invention relates generally to an apparatus for embossing a flexible substrate. More specifically, the present invention relates to an apparatus for embossing a photopolymer coated flexible substrate with an imprint pattern transferred from an imprint stamp carried by an optically transparent compliant media. The imprint stamp is irradiated through the compliant media with ultraviolet light contemporaneously with the embossing so that the transferred imprint pattern cures, hardens, and retains its shape. BACKGROUND OF THE INVENTION [0002] Current roll-to-roll soft lithography processes for embossing a photopolymer coated web include a process and apparatus used by Epigem Ltd., wherein a web material that is transparent to ultraviolet light is coated with a layer of photopolymer resist and the coated side of the web is brought into contact with an embossing shim that carries an imprint pattern. When the web separates from the embossing shim, ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B29C59/00B29C39/16B29C35/08B29C39/14B29C59/04B29C59/16B29L7/00B41M5/00G03F7/00G03F7/20
CPCB29C39/148B82Y10/00G03F7/0005G03F7/0002B82Y40/00B29C59/16
Inventor JEANS, ALBERT H.
Owner JEANS ALBERT H
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