Conceptual drawing of the proposed flexPCB structure together with design parameters demonstrating the view by: (a) top, (b) lateral, (c) close-up. (d), (e) FEM results of the proposed structure under 40 mg force loading.

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System representation of the proposed polyimide-based MEMS structure...

Conceptual drawing of the proposed flexPCB structure together with...

Views of the proposed sensing system in the experimental test setup:...

Hysteresis behavior of the proposed flexPCB sensing structure: This...

Flexible printed circuit board for biomolecule weight sensing

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Jan 2025

Sena Ulgaz
Berkay Yılmaz
Beril Aygül
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Yiğit Dağhan Gökdel

This work presents the design, implementation, and characterization of a piezoresistive force sensor integrated into a flexible printed circuit board (FlexPCB). We propose a flexPCB-based MEMS sensing system with graphite as the sensing element and polyimide as the principal substrate material, intended for disposable and low-cost applications. The...