Abstract
The use of a single material as a multifunctional insulator (i.e. substrate, gate dielectric, and passivation layer) in the same device will reduce cost and improve the sustainability of flexible integrated circuits. Towards that goal, use of the oblique-angle physicochemical deposition technique to fabricate columnar microfibrous thin films of Parylene C and thereby lower the relative permittivity motivated the examination of these materials as interlayer dielectrics in flexible electronics. The static Young's moduli, yield strengths, and relative permittivity of columnar microfibrous thin films of Parylene C were correlated to the porosity, crystallinity, and the deposition angle. The Poole-Frenkel conduction mechanism is responsible for the DC leakage current at temperatures not exceeding 100°C, and the AC leakage current is attributable to small-polaron tunneling mechanism. The leakage current after the application of a constant-voltage stress for a certain duration conforms to the Kohlrausch-Williams-Watts relaxation model, and the capacitance of a columnar microfibrous thin film will degrade by 20% in 10 years.
| Original language | English (US) |
|---|---|
| Title of host publication | Behavior and Mechanics of Multifunctional Materials XIII |
| Editors | Hani E. Naguib |
| Publisher | SPIE |
| ISBN (Electronic) | 9781510625914 |
| DOIs | |
| State | Published - Jan 1 2019 |
| Event | Behavior and Mechanics of Multifunctional Materials XIII 2019 - Denver, United States Duration: Mar 4 2019 → Mar 6 2019 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 10968 |
| ISSN (Print) | 0277-786X |
| ISSN (Electronic) | 1996-756X |
Conference
| Conference | Behavior and Mechanics of Multifunctional Materials XIII 2019 |
|---|---|
| Country | United States |
| City | Denver |
| Period | 3/4/19 → 3/6/19 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Cite this
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Parylene C as a multifunctional insulator for all-organic flexible electronics. / Khawaji, Ibrahim H.; Awadelkarim, Osama O.; Lakhtakia, Akhlesh.
Behavior and Mechanics of Multifunctional Materials XIII. ed. / Hani E. Naguib. SPIE, 2019. 1096813 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10968).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Parylene C as a multifunctional insulator for all-organic flexible electronics
AU - Khawaji, Ibrahim H.
AU - Awadelkarim, Osama O.
AU - Lakhtakia, Akhlesh
PY - 2019/1/1
Y1 - 2019/1/1
N2 - The use of a single material as a multifunctional insulator (i.e. substrate, gate dielectric, and passivation layer) in the same device will reduce cost and improve the sustainability of flexible integrated circuits. Towards that goal, use of the oblique-angle physicochemical deposition technique to fabricate columnar microfibrous thin films of Parylene C and thereby lower the relative permittivity motivated the examination of these materials as interlayer dielectrics in flexible electronics. The static Young's moduli, yield strengths, and relative permittivity of columnar microfibrous thin films of Parylene C were correlated to the porosity, crystallinity, and the deposition angle. The Poole-Frenkel conduction mechanism is responsible for the DC leakage current at temperatures not exceeding 100°C, and the AC leakage current is attributable to small-polaron tunneling mechanism. The leakage current after the application of a constant-voltage stress for a certain duration conforms to the Kohlrausch-Williams-Watts relaxation model, and the capacitance of a columnar microfibrous thin film will degrade by 20% in 10 years.
AB - The use of a single material as a multifunctional insulator (i.e. substrate, gate dielectric, and passivation layer) in the same device will reduce cost and improve the sustainability of flexible integrated circuits. Towards that goal, use of the oblique-angle physicochemical deposition technique to fabricate columnar microfibrous thin films of Parylene C and thereby lower the relative permittivity motivated the examination of these materials as interlayer dielectrics in flexible electronics. The static Young's moduli, yield strengths, and relative permittivity of columnar microfibrous thin films of Parylene C were correlated to the porosity, crystallinity, and the deposition angle. The Poole-Frenkel conduction mechanism is responsible for the DC leakage current at temperatures not exceeding 100°C, and the AC leakage current is attributable to small-polaron tunneling mechanism. The leakage current after the application of a constant-voltage stress for a certain duration conforms to the Kohlrausch-Williams-Watts relaxation model, and the capacitance of a columnar microfibrous thin film will degrade by 20% in 10 years.
UR - http://www.scopus.com/inward/record.url?scp=85068225299&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85068225299&partnerID=8YFLogxK
U2 - 10.1117/12.2513921
DO - 10.1117/12.2513921
M3 - Conference contribution
AN - SCOPUS:85068225299
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Behavior and Mechanics of Multifunctional Materials XIII
A2 - Naguib, Hani E.
PB - SPIE
ER -