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INTERLITH - Product Overview

What is photometallographic glass?

INTERLITH is a photo-patternable metallization glass. You apply a thin liquid film, shine (365 nm) UV light through a mask, and then bake. Metal forms only in the exposed regions and becomes sealed inside the glass after baking, leaving the dark (unexposed) regions insulating.

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Result: arbitrary, mask-defined conductive routing embedded in one monolithic glass film.

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Why Teams Choose INTERLITH​

  • Simpler manufacturing: Replace resist spin, expose, develop, strip, sputter/etch, and plating with a single chemistry and two basic steps.

  • Higher reliability: Encapsulated conductors are shielded from the environment.

  • Design agility: Iterate masks quickly; stack multiple coated layers for 3D routing.

  • Glass-friendly: Works on common technical glasses and ceramics.

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Where INTERLITH Shines

  • Microfluidics & lab-on-glass: buried electrodes/heaters under channels, optical windows untouched.

  • Interposer “utilities” for chiplet systems: ground/guard rings, shields, heaters, sensor nets, fiducials, coarse feedthroughs.

  • Optics & smart devices: hidden busbars, current spreaders, aesthetic circuits under glass.

  • Specialty sensing: strain/temperature patterns sealed beneath the surface.

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For high current PDNs or ultra-fine redistribution layers, traditional copper processes still apply. INTERLITH complements them with embedded utilities and rapid prototyping.

Empowering The Next Generation of Microfabrication​

©2025 by Engistaff Semiconductor

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