3M™ ACF 7379 is an acrylate-based adhesive system filled with 10 micron gold-coated polymer particles. It is a heat-bondable, electrically-conductive adhesive film which rapidly cross-links at modest bonding temperature and pressure.
Assembly of flex to glass touch screen / glass flat panel display devices
Interconnection of flex to glass-based devices with ITO
Interconnection of flex to flex
The unbonded film is slightly tacky at room temperature and consists of a thermoset-elastomer and thermoplastic adhesive matrix randomly loaded with conductive particles. These particles allow interconnection of circuit lines through the adhesive thickness, but are spaced far enough apart for the product to be electrically insulating in the plane of the adhesive. Soft conductive particles are preferred when bonding to fragile substrates such as ITO on glass, as they deform against hard surfaces, but may also be used for other substrate types. 3M™ ACF 7379 may be used to bond a flexible printed circuit to glass-based devices such as displays or to another flexible printed circuit.
Adhesive Thickness (metric)
2 - 3 MPa
160 - 190 degree C
10 - 20 seconds
Conductive Particle Size
Conductive Particle Type
Flex to Glass
Gold/Copper on Polyester, Gold/Copper on Polyimide, Silver Ink on Polyester