---
title: "Helplayer"
canonical_url: "https://www.smoltek.com/helplayer/1022/"
date: 2009-02-20
author: "Fredrik Liljeberg"
featured_image: "https://www.smoltek.com/wp-content/uploads/2009/02/ep2250661b1pdf.png"
categories:
  - name: "Patents"
    url: "https://www.smoltek.com/category/patents.md"
---

# Helplayer

The inven­tion: A method for mak­ing one or more nanos­truc­tures is dis­closed, the method com­pris­ing: deposit­ing a con­duct­ing lay­er on an upper sur­face of a sub­strate; deposit­ing a pat­terned lay­er of cat­a­lyst on the con­duct­ing lay­er; grow­ing the one or more nanos­truc­tures on the lay­er of cat­a­lyst; and selec­tive­ly remov­ing the con­duct­ing lay­er between and around the one or more nanos­truc­tures. A device is also dis­closed, com­pris­ing a sub­strate, where­in the sub­strate com­pris­es one or more exposed met­al islands sep­a­rat­ed by one or more insu­lat­ing areas; a con­duct­ing helplay­er dis­posed on the sub­strate cov­er­ing at least some of the one or more exposed met­al islands or insu­lat­ing areas; a cat­a­lyst lay­er dis­posed on the con­duct­ing helplay­er; and one or more nanos­truc­tures dis­posed on the cat­a­lyst layer.

[Down­load the patent grant­ed by EPO.](https://www.smoltek.com/wp-content/uploads/2021/11/ep2250661b1.pdf)

## [](https://www.smoltek.com#granted-patents-relating-to-the-innovation)Granted patents relating to the innovation

| Patent Office | Patent                                                          |
|---------------|-----------------------------------------------------------------|
| Chi­na        | [CN102007571](https://patents.google.com/patent/CN102007571/en) |
| Chi­na        | [CN105441903](https://patents.google.com/patent/CN105441903/en) |
| Europe        | [EP2250661](https://patents.google.com/patent/EP2250661/en)     |
| India         | IN327303                                                        |
| Japan         | [JP5474835](https://patents.google.com/patent/JP5474835/en)     |
| Japan         | [JP5943947](https://patents.google.com/patent/JP5943947/en)     |
| Japan         | [JP6126725](https://patents.google.com/patent/JP6126725/en)     |
| South Korea   | [KR101638463](https://patents.google.com/patent/KR101638463/en) |
| Tai­wan       | [TWI465389](https://patents.google.com/patent/TWI465389/en)     |
| USA           | [US8508049](https://patents.google.com/patent/US8508049/en)     |
| USA           | [US8866307](https://patents.google.com/patent/US8866307/en)     |
| USA           | [US9114993](https://patents.google.com/patent/US9114993/en)     |

For more infor­ma­tion about a par­tic­u­lar patent, click on its name to view it on Google Patents.