Invention Grant
- Patent Title: Electrically-conductive and semi-conductive films
- Patent Title (中): 导电和半导电膜
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Application No.: US11989345Application Date: 2006-08-09
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Publication No.: US08529784B2Publication Date: 2013-09-10
- Inventor: Tingbing Cao , Qiaobing Xu , Adam Winkleman , George M. Whitesides
- Applicant: Tingbing Cao , Qiaobing Xu , Adam Winkleman , George M. Whitesides
- Applicant Address: US MA Cambridge
- Assignee: President and Fellows of Harvard College
- Current Assignee: President and Fellows of Harvard College
- Current Assignee Address: US MA Cambridge
- Agency: Wolf, Greenfield & Sacks, P.C.
- International Application: PCT/US2006/031028 WO 20060809
- International Announcement: WO2007/021741 WO 20070222
- Main IPC: H01L29/00
- IPC: H01L29/00 ; H01L47/00 ; H01L29/02 ; H01L29/04

Abstract:
Methods and apparatuses for generating electrically-conductive and/or semi-conductive films, and more specifically, methods and apparatuses for generating conductive and/or semi-conductive films having nanoscale features are provided. In one embodiment, an electrically-conductive or semi-conductive film (e.g., a gold layer of less than 50 nanometer thickness) is provided on a substrate (e.g., a poly(dimethylsiloxane) (PDMS) stamp). The substrate may optionally include patterns or features having raised and recessed portions. A first portion of the film may be removed from the substrate, e.g., by methods such as physically contacting the first portion of the film with a surface to which the first portion preferentially adheres. This process can leave a second portion of the film remaining on the substrate. In some embodiments, the second portion includes at least one region having a dimension substantially parallel to a portion of the substrate i.e., of less than 50 nanometers. The second portion of the film may be used to establish electrical communication with an electrical contact. Advantageously, electrically-conductive and/or semi-conductive films having nanoscale features can be fabricated over large areas (e.g., areas greater than 1 cm2) in a single step.
Public/Granted literature
- US20090295364A1 Methods of Using a Nanotransfer Printing Stamp Having Conductively Coated Sidewalls Public/Granted day:2009-12-03
Information query
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