Granted Patent B2

US 9,408,297 · App. 14/604,529 · Granted Aug 2, 2016

Inventors: Arjun Daniel Srinivas (San Francisco, CA); Matthew R. Robinson (San Francisco, CA); Alexander Chow Mittal (Berkeley, CA); Michael Eugene Young (Emeryville, CA); David Buchanan (San Francisco, CA); Joseph George (Fremont, CA); Yuka Yoshioka (Emeryville, CA)

Assignee: TPK HOLDING CO., LTD.

H05K1/0274G06F3/041H05K1/0296H05K1/0298H05K1/09H05K3/0091H05K3/027B82Y30/00G06F2203/04103Y10S977/932Y10T428/25Y10T428/254

Abstract

Claims (11)

1. A patterned transparent conductor comprising:

a substrate;

first additives at least partially embedded into a surface of the substrate within a first area of the surface corresponding to a lower sheet resistance portion; and

second additives at least partially embedded into the surface of the substrate within a second area of the surface corresponding to a higher sheet resistance portion,

wherein a sheet resistance of the higher sheet resistance portion is at least 100 times a sheet resistance of the lower sheet resistance portion.

2. The patterned transparent conductor of claim 1 , wherein the first additives correspond to first metallic nanowires, the second additives correspond to second metallic nanowires, and the second metallic nanowires are treated to inhibit at least one of formation of a percolating network and conductivity of the network.

3. The patterned transparent conductor of claim 1 , wherein the first additives have an aspect ratio of at least 3, and at least one of the second additives has an aspect ratio less than 3.

4. The patterned transparent conductor of claim 1 , wherein an extent of embedding of the second additives within the higher sheet resistance portion is greater than an extent of embedding of the first additives within the lower sheet resistance portion.

5. The patterned transparent conductor of claim 1 , wherein the first additives are localized within a depth from the surface that is no greater than 50% of a thickness of the substrate.

6. The patterned transparent conductor of claim 1 , wherein at least one of the first additives includes a portion exposed at or above the surface of the substrate.

7. The patterned transparent conductor of claim 1 , wherein at least one of the second additives is embedded below the surface of the substrate.

Assignments (1)

Continuity (11)