## Pages - [About — Michael LeFebvre, ThinFilm Design Consultant](/about): Over forty years of thin-film and printed electronics design: from the screen-printing floor to independent membrane switch and touch screen, HMI and wearable sensor design practice. - [Blog — Notes on Printed Electronics, DFM and HMI Design](/blog): Articles on membrane switch tolerances, printed silver versus etched copper, backlight uniformity and skin-contact stack-ups for wearable devices. - [Contact — ThinFilm & Printed Electronics Design Enquiries](/contact): Contact Michael LeFebvre for membrane switch, touch screen, printed electronics, HMI and wearable sensor design, DFM review and production layout services. - [Hamilton Nimbus — Case Study |](/case-study/hamilton-nimbus): Case study: printed-electronics HMI overlay for the Hamilton Nimbus laboratory fluid-handling robot — 7-layer stack-up, IP66 sealing, and ±8% backlight uniformity. - [Magnetohemodynamic CGM — Case Study |](/case-study/magneto-cgm): Case study: Magnetohemodynamic CGM no-needle continuous glucose monitor — disposable printed silver/silver-chloride electrodes, skin-safe adhesive stack-up, snap-fit reusable electronics module, and a 7-day wear target. - [Medical Wearable Design — Case Study |](/case-study/medical-wearable-design): Case study: CareWear photobiomodulation medical wearable — disposable hydrogels, printed light-emitting layer, skin-safe adhesive stack-up, and a 5M-cycle reusable light engine. - [Services — Membrane Switch, Touch Screen & Printed Electronics Design](/services): Design services for membrane switches, touch screens, printed electronics, HMI design, medical wearables, circuit design, design for manufacturing, production layout and technical guidance.