Microcontact printing stamps with functional features
US9873276B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2014 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Oct 30, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/0143
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method includes providing an elastomeric stamp including a stamping surface with a first pattern element having a fill factor of 20 to 99 percent and including a continuous region and at least one discontinuous region, the discontinuous region including at least one of: (1) one or more elongated concavities, and (2) one or more interior voids. A second pattern element of the stamping surface has a fill factor of 0.25 to 10 percent, and includes traces with a width from 0.1 micrometers to 50 micrometers. The stamping surface is inked with an ink composition including a functionalizing molecule with a functional group selected to bind to a surface of the ink-receptive material. The inked stamping surface is contacted with an ink-receptive material selected from a sheet or a web for a contact time sufficient to bind the functional group with the surface of the ink-receptive material to form a self-assembled monolayer (SAM) of the functionalizing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.