METHOD FOR FABRICATING TRANSFER PRINTING SUBSTRATE USING CONCAVE-CONVEX STRUCTURE, TRANSFER PRINTING SUBSTRATE FABRICATED THEREBY AND APPLICATION THEREOF
First Claim
1. A method for fabricating a substrate for transfer printing, comprising:
- preparing a handling substrate having a concave-convex structure formed thereon;
forming a sacrificial layer along the concave-convex structure on the handling substrate;
coating a polymer on the handling substrate having the sacrificial layer formed thereon to form a polymer substrate having bumps filling a concave portion of the concave-convex structure;
removing the sacrificial layer from the handling substrate.
1 Assignment
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Accused Products
Abstract
A method for fabricating a substrate for transfer printing using a concave-convex structure and a substrate for transfer printing fabricated thereby. The method includes preparing a handling substrate having a concave-convex structure formed thereon; forming a sacrificial layer along the concave-convex structure on the handling substrate; coating a polymer on the handling substrate having the sacrificial layer formed thereon to form a polymer substrate having bumps filling a concave portion of the concave-convex structure; and removing the sacrificial layer from the handling substrate. The substrate includes a handling substrate having a concave-convex structure formed thereon; and a polymer substrate placed on the concave-convex structure and having bumps filling a concave portion of the concave-convex structure of the handling substrate. This process of manufacturing provides a device to be stably performed on an ultrathin substrate and may secure high degree of alignment and high transfer yield in a transfer printing process.
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Citations
20 Claims
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1. A method for fabricating a substrate for transfer printing, comprising:
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preparing a handling substrate having a concave-convex structure formed thereon; forming a sacrificial layer along the concave-convex structure on the handling substrate; coating a polymer on the handling substrate having the sacrificial layer formed thereon to form a polymer substrate having bumps filling a concave portion of the concave-convex structure; removing the sacrificial layer from the handling substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20)
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17. A method for fabricating an electronic device for transfer printing, comprising:
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preparing a handling substrate having a concave-convex structure formed thereon; forming a sacrificial layer along the concave-convex structure on the handling substrate; coating a polymer on the handling substrate having the sacrificial layer formed thereon to form a polymer substrate having bumps filling a concave portion of the concave-convex structure; and removing the sacrificial layer from the handling substrate, wherein an electronic device is formed on the polymer substrate before or after removing the sacrificial layer.
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Specification