Now Mitsubishi Materials is developing non-shim stripe coating technology with tungsten carbide lips. Main applications are CIS, CIGS, OPV, OLED and so on.

Channels are directly designed on tungsten carbide lips, so customers do not need to set shims between the slit. And each channel has sharp corner R at the edge. These features leads to a high precision stripe coating.
Stripe coating die

[Stripe coating die]

Channels on the lip

[Channels on the lip]

Directly designed on the lip

[Directly designed on the lip]

Edge radius of 2-3 microns

[Edge radius of 2-3 microns]

Stripe coating on the film

[Stripe coating on the film]

Stripe Coating Die

Stripe Coating Die