A slash sheet (e.g., IPC-4101**/126**) acts as a technical minimum requirement. Instead of specifying a specific brand of material, which can lead to long lead times if that brand is out of stock, experts at Epec's Blog recommend using IPC slash numbers. This allows manufacturers to substitute functionally equivalent materials, ensuring your project stays on schedule without sacrificing quality. Why your standard PCB fabrication notes needs updating
A complete material callout must include: ipc4101 pdf exclusive
The IPC-4101 standard offers several benefits to the electronics industry, including: A slash sheet (e
| Slate | Description | |-------|-------------| | 1 | Standard FR-4 (Tg 130°C, DICY-cured, V-0) | | 2 | FR-4 with enhanced thermal decomposition (Td) | | 4 | FR-4, high Tg (170°C), non-DICY | | 5 | FR-4, high Tg (180°C), phenolic cure, lead-free assembly | | 10 | Polyimide – low thermal expansion | | 20 | Halogen-free FR-4 (IEC 61249-2-21 compliant) | | 21 | Halogen-free, high Tg (170°C) | | 50 | Cyanate ester – very low dielectric constant/loss | Why your standard PCB fabrication notes needs updating
The IPC4101 PDF is available for download from the IPC website or through authorized distributors. To access the document, users can: