Specification Sheet
Standardized material data sheets within the IPC-4103 family establish normative performance thresholds for high-frequency base laminates used in microwave and millimetric circuit applications. IPC-4103 slash sheet 17 defines physical and electrical requirements for hydrocarbon laminates reinforced with woven glass fabric. The specification mandates strict limits on permittivity variation, dissipation factor, moisture absorption and thermal conductivity.
Procurement specifications reference this document to ensure consistent raw material performance across multiple laminate manufacturing sources.
Material Classification
Materials qualified to IPC-4103 slash sheet 17 undergo testing for copper peel strength, flexural strength and flammability resistance under standard IPC-TM-650 test methods. Dielectric constant must remain within tight tolerances, typically plus or minus 0.05 from the nominal value at 10 GHz, preventing unexpected impedance mismatches in fabricated boards. Thermal property requirements mandate a high glass transition temperature and low z-axis thermal expansion to prevent plated through-hole barrel cracking during thermal shock and lead-free reflow soldering.
Receiving inspection procedures at fabrication facilities verify supplier test reports against these slash sheet requirements before releasing panel stock to production lines.
Acceptance Limit
Non-conforming laminate lots that fail to meet slash sheet limits for dissipation factor or thermal expansion face rejection prior to panel processing. Substrate performance deviations directly degrade high-frequency signal integrity and long-term reliability of assembled microwave modules.
