Electronics Related Products >> Base Materials for PWBs
High Tg Glass Epoxy Multilayer Material <MCL>
MCL-E-679 ∙GEA-679N <prepreg>Inquiry
- These FR-5 equivalent materials offer increased Tg (175 TMA) and improved through-hole reliability. With minimal water absorption rates of less than 50% of conventional FR-4s, these materials use advanced resin technology to offer superior CAF restraining property and better wire bondability. It is suitable for the substrate of plastic BGA.
Features
- High Tg & excellent through hole reliability
- Superior moisture resistance and good insulation resistance
- High heat resistance after water absorption
- Good processability(for drilling punching)
Characteristics
| Item | Condition | Unit | Type No. MCL−E−679 Type No. MCL−E−-679B (R) |
Type No. MCL−E−67(FR-4) | |
|---|---|---|---|---|---|
| Tg | TMA | ºC | 173~183 | 120~130 | |
| DMA | ºC | 205~215 | 150~160 | ||
| Dielectric constant |
A (1MHz) | C-96/20/65 | – | 4.6~4.8 | 4.7~4.8 |
| A (1GHz)*1 | C-96/20/65 | – | 4.2~4.6 | 4.2~4.3 | |
| Dissipation factor |
A (1MHz) | C-96/20/65 | – | 0.0140~0.0150 | 0.0130~0.0170 |
| A (1GHz)*1 | C-96/20/65 | – | 0.0190~0.0260 | 0.0210~0.0250 | |
| Peel strength (1/2 oz copper) |
A | kN/m | 1.2~1.4 | 1.0~1.6 | |
| Water Absorption | E-24/50+0-24/23 | % | 0.05~0.07 | 0.05~0.07 | |
| CAF | 85 ºC/85RH%. 100V | hrs | >2000 | >1000 | |
| Flammability (UL-94) | A | – | 94V-0 | 94V-0 | |
Note) General properties measured by JIS C 6481.
*1Measured by triplate-line resonator.
