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Products > I-Speed®

I-Speed® Tg 180, Td 360
Dk 3.64, Df 0.0060
/21 /24 /121 /124 /129

I-Speed® is a proprietary high-performance 180°C (DSC) glass transition temperature (Tg) FR-4 system for multilayer Printed Wiring Board (PWB) applications where maximum thermal performance and reliability are required.

I-Speed® laminate and prepreg products are manufactured with Isola’s patentable high performance multifunctional resin system, reinforced with electrical grade (E-glass) glass fabric. This system delivers a 15% improvement in Z-axis expansion and offers 25% more electrical bandwidth (lower loss) than competitive products in this space. These properties coupled with superior moisture resistance at reflow, result in a product that bridges the gap from both a thermal and electrical perspective.

The I-Speed 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 /21 /24 /121 /124 /129
  • UL Recognized – FR-4, File Number E41625
  • Qualified to UL’s MCIL class with FR408. IS415, FR408HR family for ease of qualification

High Thermal Performance

  • Tg of 180°C (DSC), (Base Laminate)
  • Low CTE for reliability
  • Lead-free compatible and RoHS compliant
  • Good performance in lead-free and MSL testing
  • UV blocking and AOI fluorescence

Standard Availability

  • Thickness: 0.002” to 0.060″  Available in sheet or panel form
  • Copper Foil Cladding: Grade 3 (HTE), ½, 1, 2 oz. and 2-3μ
  • Foil Options: VLP-2, RTF, HTE Grade 3
  • Prepregs: Available in roll or panel form