In brief
Conventional FPC and printed flexible circuits do not share one manufacturing route. LICHAO equipment supports flexible circuit boards, but a customer's conductor design still needs material and process qualification.
A customer may mean a copper-patterned flexible board or a functional trace printed on film when saying FPC
A customer may mean a copper-patterned flexible board or a functional trace printed on film when saying FPC. Conductor thickness, pitch, connection and reliability requirements can differ. The acronym alone cannot select a machine.
Printed electronics can use silver, carbon, dielectric and other materials for conductors, contacts, crossovers or protection
Printed electronics can use silver, carbon, dielectric and other materials for conductors, contacts, crossovers or protection. Henkel lists screen printing as an application method for several flexible conductive inks. This does not mean every high-density FPC trace can be screen printed.
Check minimum feature and gap, layer registration, target resistance, film thermal budget, bend life, connector and lamination route
Check minimum feature and gap, layer registration, target resistance, film thermal budget, bend life, connector and lamination route. Share drawings and materials for a controlled design-of-experiments trial. Critical applications also need the customer's own qualification standards.
Substrate and repeat-registration specifications help with initial screening
Substrate and repeat-registration specifications help with initial screening. Final yield depends on artwork, material, stencil, drying and inspection. One nominal figure cannot become a circuit-performance guarantee.
How do we start a trial?
Provide substrate, controlled artwork, material data, process flow and acceptance criteria. Use representative samples to confirm configuration and process window.
References and fact sources
Original process guidance. Verify equipment fit and performance with customer samples.
Mr. Yang can discuss a trial plan from your film, drawing and acceptance requirements.
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