3M™ ACF 7371-20
3M™ Anisotropic Conductive Film (ACF) 7371-20 is a electrically conductive, heat-bondable adhesive film. It is has tack at room temperature and consists of a thermoset-thermoplastic adhesive matrix randomly loaded with conductive particles. These particles allow interconnection of circuits through the adhesive, but are distanced apart for the product to be electrically insulating. Heat and pressure causes the adhesive to flow and to bring the circuit pads into electrical contact by trapping the conductive particles. The adhesive cures fast at modest bonding temperature and pressure. The 3M ACF 7371-20 is used in bonding a flexible printed circuit to another flexible printed circuit or flexible printed circuit to polyester-based devices or flexible printed circuit to camera module devices.
Features and Benefits
- Heat cure
- Fast bond time
- Thermo-set low temperature cure
- Slight tack at room temperature
- 20 micron particle size
- High adhesion to PET
- Good thermal stability
- Reworkable
- Frozen storage
Product Attributes
| Adhesive Thickness (metric) | 35 micron |
| Adhesive Type | Acrylate-Based |
| Application | Touch Panel Bonding |
| Application Category | Bonding |
| Bonding Method | Thermo-compression bonding |
| Bonding Pressure | 1 - 2 MPa |
| Bonding Temperature | 140 - 160 degree C |
| Bonding Time | 10 - 15 seconds |
| Conductive Particle Size | 20 Micron |
| Conductive Particle Type | Gold-coated polymer |
| Connection Type | Flex to Flex, Flex to Glass, Flex to PET |
| Flex Type | Gold/Copper on Polyester, Gold/Copper on Polyimide, Silver Ink on Polyester |
| Liner Thickness (metric) | 50 micron |
| Liner Type | Polyester Film with Silicone Release |
| Minimum Gap | 4 mil |
| Minimum Gap (metric) | 100 micron |
| Minimum Overlap Area | 0.50 mm^2 |
| Minimum Pitch | 8 mil |
| Minimum Pitch (metric) | 200 Micron |
| Product Form | Roll |
| Product Series | 7371-20 |
| Shelf Life | 4 Weeks |
| Shelf Life Frozen | 12 Months |
| Standard Width (metric) | 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm |
| Tacking Pressure | 0.1 - 1.5 MPa |
| Tacking Temperature | 60 - 90 degree C |
| Tacking Time | 1 - 2 seconds |
| Total Trace Height (metric) | 70 micron |
