IS420
Tg 170, Td 340
Dk 4.04, Df 0.021
/98 /99 /101
IS420 is a high performance 170°C glass transition temperature (Tg) FR-4 system for multilayer Printed Wiring Board (PWB) applications where maximum thermal performance and reliability are required.
IS420 laminate and prepreg products are manufactured with a unique high performance multifunctional epoxy resin, reinforced with electrical grade (E-glass) glass fabric. This system provides improved thermal performance and low expansion rates in comparison to traditional FR-4 while retaining FR-4 processability.
In addition to this superior thermal performance, the mechanical, chemical and moisture resistance properties all equal or exceed the performance of traditional FR-4 materials. The IS420 system is also laser fluorescing and UV blocking for maximum compatibility with Automated Optical Inspection (AOI) systems, optical positioning systems and photoimagable solder mask imaging.
Key Features
Industry Approvals
- IPC-4101C /98/99/101
- UL Recognized – FR-4, File Number E45456
- Qualified to UL’s MCIL Program
High Thermal Performance
- Tg of 170°C (DSC)
- Low CTE for reliability
UV Blocking and AOI Fluorescence
- High throughput and accuracy during PCB fabrication and assembly
Superior Processing
- Closest to conventional FR-4 processing of all high speed materials
Standard Availability
- Thickness: 0.002″ [.05 mm] to 0.093″ [2.4 mm]
Available in sheet or panel form - Copper Foil Cladding: Grade 3 (HTE), ½, 1 and 2 oz.
- Foil Options: Reverse treat
- Prepregs: Available in roll or panel form
