Specification for Base Materials for Rigid and ... - IPC

1 IPC-4101E.. Specification for Base Materials for Rigid and Multilayer Printed Boards Developed by the Laminate/Prepreg Materials Subcommittee (3-11) of the Printed Board Base Materials Committee (3-10) of IPC. Supersedes: IPC-4101D-WAM1 - July 2015. IPC-4101D - April 2014. IPC-4101C - August 2009. IPC-4101B with Amendments 1 & 2 - April 2007. IPC-4101B with Users of this standard are encouraged to participate in the Amendment 1 - February 2007 development of future revisions. IPC-4101B - June 2006. IPC-4101A with Contact: Amendment 1 - June 2002. IPC-4101A - December 2001. IPC. IPC-4101 - December 1997. IPC-L-108. IPC-L-109. IPC-L-112. IPC-L-115. IPC-AM-361. March 2017 IPC-4101E. Table of Contents 1 SCOPE .. 1 Qualification Testing .. 7. Classification .. 1 Qualification Testing of Laminate .. 11. Specification Sheet Description .. 1 Qualification Testing of Prepreg.

2 11. Nominal Laminate Thickness .. 1 Verification of Manufacturer's Metal Cladding Type and Nominal Weight/ Quality System .. 11. Thickness .. 2 Conflict .. 11. Metal Cladding Type .. 2 Materials .. 11. Nominal Weight/Thickness .. 2 Metal Cladding .. 11. Thickness Tolerance (Laminate) .. 2 Reinforcement Fabric .. 11. Surface Quality Class .. 2 Resin Systems .. 11. Reinforcement Style .. 2 General Requirements .. 11. Prepreg Parameters .. 2 Fabricated Sheets and Panels .. 11. Color .. 4 Fabricated Laminate Sheet Material .. 11. Contrast Agents .. 4 Fabricated Laminate Panel Material .. 11. Dimensions and Tolerances .. 4 Fabricated Prepreg Panels .. 11. Metric and Imperial Measurements .. 4 Fabricated Prepreg Rolls .. 12. Inspection Lot .. 12. 2 APPLICABLE DOCUMENTS .. 4. Inspection Lot for Laminate .. 12. IPC .. 4. Inspection Lot for Prepreg .. 12. National Conference of Standards Laboratories (NCSL).

3 6 Preparation of Samples .. 12. International Standards .. 6 Etching Process and Etchant Removal for Underwriters Laboratories (UL) .. 6 Copper Foil Specimens .. 12. European Union .. 6 Standard Laboratory Conditions .. 12. ASTM International .. 6 Visual Properties .. 12. Laminate Visual Properties .. 12. 3 REQUIREMENTS .. 6. Foil Indentations .. 12. Terms and Definitions .. 6. Wrinkles .. 12. Qualification Assessment .. 6. Scratches .. 13. Quality Conformance Testing .. 6. Plastic Surface Finish of Metal-Clad Supplier's Quality System .. 6 Single-Sided Base Material .. 13. Process Control Testing .. 6. Surface Finish of Foil after Curing . Self Declaration .. 6 Except Double Treat .. 13. Quality Assessment Data .. 7 Surface and Subsurface Imperfections .. 13. Sample Qualification .. 7 Prepreg Visual Properties .. 13. Production Data .. 7 Inclusions.

4 13. Customer Test Data .. 7 Impregnation Imperfections .. 13. Internal Assessment .. 7 Dimensional .. 14. Individual Customer Audit .. 7 Length and Width .. 14. Independent Third Party Assessment .. 7 Length and Width of Laminate .. 14. Epoxy, Multifunctional .. 7 Length and Width of Prepreg .. 14. Epoxy, Difunctional .. 7 Prepreg Roll Width .. 14. AABUS .. 7 Prepreg Roll Length .. 14. Specification Sheets .. 7 Thickness .. 14. Manufacturer Quality Profile .. 7 Class A, B and C Laminate Materials .. 14. vii IPC-4101E March 2017. Class D Laminate Materials .. 14 Flammability .. 18. Class K, L and M Laminate Materials .. 15 Thermal Stress .. 18. Thickness Tolerance of Laminate Solderability .. 18. Materials .. 15 Chemical Resistance (Optional Test) .. 19. Bow and Twist of Laminate Materials .. 15 Metal Surfaces Cleanability .. 19. Sheets and Panels with Both Dimensions Glass Transition Temperature (Tg).

5 300 mm [ in] .. 15 (Optional Test) .. 19. Panels with One or Both Dimensions Delta Tg (Optional Test) .. 19. <300 mm [ in] .. 15 Decomposition Temperature Physical Requirements .. 15 (Optional Test) .. 19. Physical Requirements of Laminate Time to Delaminate (TMA). Materials .. 15 (Optional Test) .. 19. Peel Strength .. 15 Chemical Requirements of Prepreg Materials .. 20. Peel Strength after Thermal Stress .. 16. Flammability .. 20. Peel Strength at Elevated Temperature .. 16. Chemical Resistance (Optional Test) .. 20. Peel Strength after Process Chemicals Presence of Dicyandiamide (Dicy). (Optional Test) .. 16. (Optional Test) .. 20. Dimensional Stability .. 16 Electrical Requirements .. 20. Flexural Strength .. 16 Electrical Requirements of Laminate Flexural Strength at Elevated Temperature .. 17 Materials .. 20. Thermal Conductivity [=] w/(m K) .. 17 Permittivity.

6 20. Coefficient of Thermal Expansion (CTE) Loss Tangent .. 20. (Optional Test) .. 17 Volume Resistivity .. 20. Z-Axis CTE / Total Expansion Surface Resistivity .. 20. (Optional Test) .. 17 Arc Resistance .. 20. Fracture Toughness (Optional Test) .. 17 Dielectric Breakdown .. 20. Physical Requirements of Prepreg Electric Strength .. 20. Materials .. 17 Electrical Requirements of Prepreg Materials .. 20. Resin Content .. 17. Permittivity .. 20. Resin Content Percent (RC). (by Treated Weight) .. 17 Loss Tangent .. 20. Resin Content Percent (RC) Electric Strength .. 20. (by Burn-Off) .. 17 Environmental Requirements .. 20. Treated Weight Total (TW) .. 17 Environmental Requirements of Laminate Variation Within a Panel .. 17 Materials .. 20. Flow Parameter .. 17 Moisture Absorption .. 20. Resin Flow Percent (MF) .. 18 Fungus Resistance .. 21. Scaled Flow Thickness (SC).

7 18 Pressure Vessel (Optional Test) .. 21. No Flow (NF) .. 18 Total Halogen Content (Optional Test) .. 21. Rheological Flow (RE) .. 18 Conductive Anodic Filament (CAF). Growth (Optional Test) .. 21. Delta H (DH) .. 18. Environmental Requirements of Prepreg Percent Cure (PC) .. 18 Materials .. 21. Gel Time (GT) (Optional Test) .. 18 Fungus Resistance .. 21. Volatile Content (VC) (Optional Test) .. 18 Conductive Anodic Filament (CAF). Thermal Conductivity (Prepreg Reference) .. 18 Growth (Optional Test) .. 21. Chemical Requirements .. 18 Substitutability .. 21. Chemical Requirements of Laminate Permissible Substitutions of Specification Materials .. 18 Sheet Materials .. 21. viii March 2017 IPC-4101E. Substitutability of Classes of Pits Ordering Data for Prepreg Materials .. 25. and Dents .. 21 New Materials .. 25. Substitutability of Classes of Thickness Tolerance.

8 21 7 KEYWORDS .. 26. Remarking of Substituted Laminates .. 21 Keyword Search Terms (Electronic/. Soft Copy Searches) .. 26. Marking .. 21. Segmented Keyword Search Terms Marking Laminate Materials .. 21 and All Specification Sheets that Use Marking Prepreg Materials .. 22 the Specific Keywords for Searching .. 26. Marking of Shipping Containers .. 22 Keyword Search Terms for All Workmanship .. 22 Specification Sheets .. 26. Material Safety .. 22 APPENDIX A (IPC-4101 supplemental inspection Prepreg Shelf Life .. 22 requirements if required in purchase order or master 4 QUALITY ASSURANCE PROVISIONS .. 22 drawing) .. 151. Quality System .. 22 Figures Responsibility for Inspection .. 22. Figure 3-1 Thickness Measurements for Laminates .. 15. Test Equipment and Inspection Facilities .. 23. Qualification Testing .. 23 Tables Samples .. 23 Table 1-1 Metal Cladding Types.

9 2. Frequency .. 23 Table 1-2 Copper Foil Weight and Thickness .. 3. Laminator Qualification Profile .. 23 Table 3-1 Reference Information and Test Frequency of Laminate .. 8. Changes in Composition .. 23. Table 3-2 Reference Information and Test Frequency Qualification Data Retention .. 23 of Prepreg .. 10. Quality Conformance Inspection .. 23 Table 3-3 Point Value for Longest Dimensions of Frequency .. 23 Indentation .. 12. Table 3-4 Surface Quality Classification .. 13. Acceptance Criteria .. 24. Table 3-5 Permissible Variation in Length and Width Rejected Lots .. 24 of Laminates .. 14. Conformance Data Retention .. 24 Table 3-6 Permissible Variation in Length and Width Certificate of Conformance .. 24 of Prepregs .. 14. Statistical Process Control (SPC) .. 24 Table 3-7 Thickness and Tolerances for Laminates .. 16. Table 3-8 Permissible Bow and Twist for Laminates, %.

10 16. 5 PREPARATION FOR DELIVERY .. 24. Table 3-9 Flammability Requirements .. 19. Packaging Materials .. 24 Table 3-10 Permissible Material Substitutions .. 21. Authorized Distributors .. 24 Table 4-1 Quality Conformance Plan for Monthly, Quarterly and Annual Tests Laminate .. 23. 6 NOTES .. 25. Table 4-2 Quality Conformance Plan for Monthly, Ordering Information .. 25 Quarterly and Annual Tests Prepreg .. 23. Ordering Data for Laminate Materials .. 25. ix March 2017 IPC-4101E. Specification for Base Materials for Rigid and Multilayer Printed Boards 1 SCOPE. This Specification covers the requirements for base Materials , herein referred to as laminate or prepreg, to be used primar- ily for Rigid or multilayer printed boards for electrical and electronic circuits. Classification The system shown below identifies clad and unclad laminate or prepreg base Materials .