All of the resisters, capacitors and inductors were built on a three-layer, thick-film circuit with punched via holes and printed via holes.
In the past, polymer thick-film circuits have been used primarily for single-sided circuits with low circuit densities.
In addition, two types of via hole forming processes have been developed: one for double-sided and a second for multilayer thick-film circuits, both formed on thin flexible substrates.
HAVERHILL, MA - A US-based research firm and a Japanese PWB fabricator have reportedly developed a solderable thick-film circuit system on a thin flexible substrate.
com) and Ohtsu, Japan-based NY Industries, the new thick-film circuit system uses a specially formed conductive paste on heat-resistant substrates such as polyimide and PEN.
Currently, many thick-film circuit
production facilities are successfully printing 5 mil (125 [micro]m) lines and spaces, but the drive has been to go down to 3 mil (75 [micro]m) on a consistent basis.
Will Lynds has more than 14 years of experience in electronic engineering including: optoelectronics, wireless telecommunications systems, PCB and thick-film circuit
The firms established a prototype service for trials with new printable electronics products, using printing equipment and other circuit manufacturing facilities, including roll-to-roll systems with broad ranges of thick-film circuit
elements on ceramic can be either passively or actively laser trimmed.
Simple thick-film circuits
are lower in cost than thin films.
Designed to provide design engineers with high-power circuits and assemblies at lower costs than typical direct bonded copper methods, a technique to produce custom thick-film circuits
and assemblies has been developed.