스템코

Products

A global leader of the world display market — STEMCO

Products

COF

Chip On Film.
The COF is a type of flexible circuit board for driver packages.
Fine circuits are formed on a thin film and display driver ICs are embedded.
The COF is applied to high-resolution display types such as FHD and UHD.
Fine Pitch(~18㎛)
Superior flexibility
Superior reliability

2-Metal COF

Chip On Film.
The 2-metal COF has circuits at both sides while the COF has them only at one side.
Compared to the one-sided COF, the 2-metal COF features the superior circuit accumulation and smaller size.
This was developed basically for mobile devices.
Circuit accumulation enhancement
Small size
Higher degree of design freedom
Superior radiant heat effect