Reproducing micro conductors without base material as a carrier is a challenge for many PCB manufacturers. Yet not for Varioprint where we realised fully exposed flying conductors for medical PCB applications.
Micro conductors for medical mass production
The novel, two-layer flex PCB unites ThinFlex polyimide stack-ups between 25-50 µm. The layer connection was realised with laser-drilled microvias of 75 µm diameter. The microvias experience a 90% copper fillrate and the panels’ surface finishing is comprised of galvanic gold. The unique Varioprint solution includes a specifically designed, laser-milled 170 µm window. Varioprint’s highly flexible process parameters enable such a fragile outer layer design ready for mass production.
A historic achievement for Varioprint
Feasibility limitations and technical barriers were embraced in close collaboration with the customer and resulted in a successful scaling-up meeting all specifications set forth. This unique interdisciplinary approach represents a breakthrough in flex technology for flying conductors. For the first time in Varioprint’s history, we found a reproducible solution for micro conductors without a base material as a carrier. Our modern and future-oriented manufacturing site enables Varioprint to handle such demanding technical requirements successfully.
Given these advanced technical capabilities, Varioprint pushes boundaries in flex technology and powers your performance particularly.
