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Understanding and mitigating process drift in aerosol jet printing

Journal Article · · Flexible and Printed Electronics

Aerosol jet printing offers a versatile, high-resolution prototyping capability for flexible and hybrid electronics. Despite its rapid growth in recent years, persistent problems such as process drift hinder the adoption of this technology in production environments. Here we explore underlying causes of process drift during aerosol jet printing and introduce an engineered solution to improve deposition stability. In this work it is shown that the ink level within the cartridge is a critical factor in determining atomization efficiency, such that the reduction in ink volume resulting from printing itself can induce significant and systematic process drift. By integrating a custom 3D-printed cartridge with an ink recirculation system, ink composition and level within the cartridge are better maintained. This strategy allows extended duration printing with improved stability, as evidenced by 30 h of printing over 5 production runs. This provides an important tool for extending the duration and improving reliability for aerosol jet printing, a key factor for integration in practical manufacturing operations.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program. Harry S. Truman Fellowship
Grant/Contract Number:
AC04-94AL85000; NA0003525
OSTI ID:
1601270
Report Number(s):
SAND--2020-1360J; 683614
Journal Information:
Flexible and Printed Electronics, Journal Name: Flexible and Printed Electronics Journal Issue: 1 Vol. 5; ISSN 2058-8585
Publisher:
IOPscienceCopyright Statement
Country of Publication:
United States
Language:
English

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journal October 2016
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