Preferred methods for producing electrical circuit elements used to control an electronic display

US6521489B2 · kind B2 · utility

Assignee

• E Ink Holdings Inc. · TW

Inventors

• Gregg M. Duthaler · Brookline, US
• Karl R. Amundson · Cambridge, US
• Paul S. Drzaic · Olivehurst, US
• Peter T. Kazlas · Sudbury, US
• Jianna Wang · Grafton, US

Key dates

• Filing date: Apr 23, 2002
• Grant date: Feb 18, 2003
• Expiry date: Apr 23, 2022

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/10
• WIPO field: Micro-structural and nano-technology
• WIPO sector: Chemistry

Abstract

Systems and methods for producing thin film transistor structures useful in controlling electronic displays. Thin film transistors are fabricated using all-additive methods including printing techniques, soft lithography and material deposition methods. The thin film transistors can be deposited with the gate on the bottom or on the top of the structure. The deposition methods include the possibility of isolating nearly completely the transistor structure from the electronic display devices, so as to minimize or eliminate deleterious interactions therebetween.