Technology of choice

for PCB and package substrate makers

VitroCoat GI®

The adhesion promoter for plating on glass

Unparalleled

Metallization coverage in high aspect TGV

Finer l/s Cu trace formation on glass

Superior adhesion

After industry standard reliability testing


  • Plating on glass enabled by an ultra thin metal oxide adhesion promoter
  • Lower CAPEX and running cost when compared to competing processes, such as sputter
  • Applicable for panel as well as wafer scale
  • Single seed etching process resulting from Cu only seeding

Cu patterning on glass wafer with VitroCoat GI®

  • Enables finer l/s Cu trace formation directly on glass
  • Excellent adhesion of plated Cu-film to glass with uniform surface distribution
  • Superior through-hole side-wall coverage with excellent adhesion
  • Applicable for panel as well as wafer scale
  • Sustains good adhesion after reliability testing
  • No electro-migration (B-HAST)
  • Lower CAPEX and running cost compared to competing processes

What inspires us

Why we developed VitroCoat GI®

Your challenge

The ideal material properties of Glass (scalability, high resistivity, low warpage, smooth surface) make it a key new substrate for advanced PKG.
Unfortunately, plated Copper does not adhere directly to glass without a capable adhesion promoter.
The major challenge is to provide a cost competitive, high throughput and reliable metallization for both TGV and smooth glass with excellent adhesion.

Our solution

VitroCoat GI® is an ultra thin metal oxide adhesion promoter enabling plating on glass.
VitroCoat GI® enables usage of electroless Cu for seeding and semi-additive processes with your EQP.

Unparalleled coverage in high aspect ratio through-vias

Atotech’s VitroCoat GI is a new and innovative adhesion promoter that enables wet chemical metal deposition on glass. It can be applied using a short, simple, cost effective dip-coating method.

VitroCoat GI’s key advantage is unparalleled coverage in high aspect ratio through-vias versus competing processes such as PVD.

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