Printed electronic device

Patent metadata

Field	Value
Publication number	US-9343680-B2
Application number	US-201013388665-A
Country	US
Kind code	B2
Filing date	Jul 29, 2010
Priority date	Aug 3, 2009
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

This invention generally relates to a patterned substrate for an electronic device and to electronic devices, device arrays, field effect transistors and transistor arrays comprising the patterned substrate. The invention also relates to a logic circuit, display, memory or sensor device comprising the patterned substrate. Further the invention relates to a method of patterning a substrate for an electronic device. In an embodiment, a patterned substrate for an electronic device comprises: a first body having an edge; a second body comprising an elongate plurality of printed droplets having an edge adjacent to and substantially aligned to said first body edge; and a separation between said first body edge and said second body edge, wherein said elongate plurality of printed droplets is at an angle of about 5 degrees to about 90 degrees to said first body edge.

First claim

The invention claimed is:

1. A patterned substrate for an electronic device, comprising:
a source electrode in a form of a first elongate body having a pair of long edges and a pair of short edges, wherein at least one edge of the pair of long edges is a straight long edge;
a drain electrode in a form of a second elongate body comprising a plurality of printed droplets, the second elongate body having a pair of long edges and a pair of short edges and an axis along a straight line between centers of two adjoining droplets, wherein a first short edge of the pair of short edges of the second elongate body is in close proximity to and parallel to said straight long edge of said first elongate body; and
a submicrometer separation formed by repulsion between said straight long edge of said first elongate body and said first short edge of said second elongate body,
wherein said axis of said plurality of printed droplets is at an angle of 90 degrees to said straight long edge of said first elongate body and said first elongate body and said second elongate body together form a T shape.

2. The patterned substrate of claim 1 , wherein said plurality of printed droplets is perpendicular to said straight long edge of said first elongate body.

3. The patterned substrate of claim 1 , wherein at least one of said first elongate body and said second elongate body comprises an electrode.

4. The patterned substrate of claim 1 , wherein said submicrometer separation contains at least semiconductor.

5. The patterned substrate of claim 1 , wherein said submicrometer separation contains at least dielectric.

6. The patterned substrate of claim 1 , wherein a width of said first short edge of said second elongate body is less than 200 μm.

7. The patterned substrate of claim 1 , wherein a width of said plurality of printed droplets is equal to or less than 250 μm.

8. The patterned substrate of claim 1 , wherein a width of said plurality of printed droplets is equal to a diameter of a printed single said droplet.

9. The patterned substrate of claim 1 , wherein said submicrometer separation has a length equal to or less than 2 μm.

10. The patterned substrate of claim 1 , wherein a ratio of a width of said plurality of printed droplets to a length of said submicrometer separation is greater than or equal to 100.

11. The patterned substrate of claim 1 , wherein said second elongate body comprises an edge portion adjoining said first short edge of said second elongate body, said edge portion having a curvature B and said first short edge of said second elongate body edge having length S, wherein B is less than 2/S.

12. The patterned substrate of claim 1 , wherein said second elongate body comprises an edge portion having curvature B adjoining said first short edge of said second elongate body having length S and a tangent to said edge portion makes an angle of α with said first short edge of said second elongate body, wherein said angle α and curvature B satisfy:

α
=

Arc
⁢

⁢

Sin
⁡

(

S
2

·
B

)

±

20
⁢

°
.

13. The patterned substrate of claim 1 , wherein said first elongate body and said plurality of printed droplets are arranged in a T-shape or an L-shape.

14. An electronic device comprising a patterned substrate of claim 1 .

15. The electronic device of claim 14 , wherein said electronic device comprises a field effect transistor.

16. A device array comprising a plurality of electronic devices according to claim 14 .

Assignees

• Sirringhaus Henning
• Carioni Mario
• Gili Enrico
• Cambridge Entpr Ltd

Inventors

• Sirringhaus Henning
• Carioni Mario
• Gili Enrico

Classifications

• H01L51/0022 Primary

  Electricity · mapped topic

• B82Y10/00 Primary

  Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic · CPC title

• H01L51/102

  Electricity · mapped topic

• H10K71/611 Primary

  using printing deposition, e.g. ink jet printing · CPC title

• H10K10/82

  Electrodes · CPC title