| Design Guidelines for Metallic-Carbon-Nanotube-Tolerant Digital Logic Circuits Recent countries visiting this post |  |
 | 5 | United States |
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| Design Guidelines for Metallic-Carbon-Nanotube-Tolerant Digital Logic Circuits Recent countries visiting this post | |
| 5 | United States |
| 3 | China |
| 1 | |
| 1 | Russian Federation |