Electronic device and manufacturing method therefor

• US 8,018,146 B2
• Filed: 06/26/2007
• Issued: 09/13/2011
• Est. Priority Date: 12/27/2004
• Status: Expired due to Fees

• Current Assignee: Fujikura Limited
• Original Assignee: Fujikura Limited
• Inventors: Ohmori, Kiwako, Ono, Akinobu, Tanabe, Nobuo
• Primary Examiner(s): HINES, ANNE M
• Application Number:
  US11/768,399
• Publication Number:
  US 20070249088A1
• Time in Patent Office: 1,540 Days
• Field of Search: 313/311, 313498-512, 428/246, 428/327, 428/901
• US Class Current: 313/506
• CPC Class Codes: G03F 7/039 Macromolecular compounds which are photodegradable, e.g. positive electron resists G03F7/075 takes precedence; macromolecular quinonediazides G03F7/023
• CPC Class Codes: G03F 7/093 characterised by antistatic means, e.g. for charge depletion
• CPC Class Codes: H10K 50/81 Anodes
• CPC Class Codes: H10K 59/80515 characterised by their shape
• CPC Class Codes: H10K 71/211 by selective transformation of an existing layer

Abstract

A manufacturing method for an electronic device, the method including forming a transparent conductive film, including conductive polymers, on a base material, and irradiating ultraviolet light onto a part of the transparent conductive film such that first regions of the transparent conductive film are not irradiated and second regions, adjacent to the first regions, are irradiated, thus forming irradiated portions and non-irradiated portions. The irradiated portions having an electrical resistance value higher than that of the non-irradiated portions. The ultraviolet light includes a wavelength that exhibits an absorbance in an absorption spectrum of the conductive polymers, of the transparent conductive film, two or more times higher than that of a background.

Claims

1. A transparent conductive circuit substrate comprising:

a transparent conductive film, comprising conductive polymers and a radical polymerization initiator, disposed on a base material, wherein

the transparent conductive film comprises a plurality of first regions and a plurality of second regions, wherein the second regions have an electrical resistance value higher than that of the first regions,

each of the second regions is between and adjacent to first regions along a surface of the base material;

the first regions form wiring portions of a circuit disposed on the base material;

the first regions and the second regions are directly disposed on the base material;

an electronic resistance value of the second regions is at least 10⁴ times higher than an electronic resistance value of the first regions; and

the second regions are formed by irradiating the conductive film with an ultraviolet light which has a wavelength that exhibits an absorbance in an absorption spectrum of the conductive polymers that is two or more times higher than that of a background radiation.

2. The transparent conductive circuit substrate according to claim 1, wherein each of the second regions is an insulating portion.

3. An electronic device comprising the transparent conductive circuit substrate according to claim 1.

4. The transparent conductive circuit substrate according to claim 1, wherein the conductive polymers of the transparent conductive film are polythiophene-based polymers having a bond energy in an energy range of ultraviolet light.

5. A transparent conductive circuit substrate comprising:

a transparent conductive film, comprising polythiophene-based conductive polymers and a radical polymerization initiator, disposed on a base material, wherein

the transparent conductive film comprises a plurality of first regions and a plurality of second regions, wherein the second regions have an electrical resistance value higher than that of the first regions, wherein the first regions form wiring portions of a circuit disposed on the base material;

each of the second regions is between and adjacent to first regions along a surface of the base material;

the first regions and the second regions are directly disposed on the base material;

an electronic resistance value of the second regions is at least 10⁴ times higher than an electronic resistance value of the first regions; and

the second regions are formed by irradiating the conductive film with an ultraviolet light which has a wavelength that exhibits an absorbance in an absorption spectrum of the conductive polymers that is two or more times higher than that of a background radiation.

6. An electronic device comprising the transparent conductive circuit substrate according to claim 5.

7. The transparent conductive circuit substrate according to claim 5, wherein the conductive polymers of the transparent conductive film are polythiophene-based polymers having a bond energy in an energy range of ultraviolet light.