19TH INTERNATIONAL ISTANBUL SCIENTIFIC RESEARCH CONGRESS ON LIFE, ENGINEERING, ARCHITECTURE AND MATHEMATICAL SCIENCES, İstanbul, Türkiye, 16 - 18 Kasım 2024, ss.886-887
In this study, it was aimed to improve the efficiency and precision of
producing pressure and strain sensors with silver ink on Kapton substrate
by using the Aerosol Jet Printing (AJP) method, which is one of the
semiconductor production techniques. Also, in AJP technique, there is no
need to generate vacuum or mask aligning. Particularly in applications
where traditional photolithography and any other microfabrication
techniques are often too complex or costly for certain applications. AJP
method involves atomizing an ink (often a metal nanoparticle-based ink)
into a fine aerosol mist, which is then directed through a nozzle to deposit
the material onto a substrate with high precision. Aerosol jet printing with
silver ink on Kapton (a polyimide film) is a common approach for creating
strain gauges due to Kapton’s flexibility, thermal stability, and electrical
insulation properties. Silver ink provides excellent conductivity, making it
ideal for precision sensing applications. When applied to Kapton using
aerosol jet printing, the silver ink forms highly conductive traces that
adhere well to the substrate. After deposition, the printed ink typically
undergoes a curing process to enhance its durability and conductivity.
This combination of silver ink and Kapton is often used in aerospace and
flexible electronics, as it provides robust, reliable strain measurements
even in harsh conditions. The thickness, widths and electrical properties
of these printed gauges were measured and compared with each other.