Specification for Base Materials for Rigid and …

1 IPC-4101 CSpecification for BaseMaterials for Rigid andMultilayer Printed BoardsDeveloped by the Laminate/ prepreg Materials Subcommittee (3-11) ofthe Printed Board base Materials Committee (3-10) of IPCU sers of this standard are encouraged to participate in thedevelopment of future :IPC3000 Lakeside Drive, Suite 309 SBannockburn, Illinois60015-1249 Tel 847 847 :IPC-4101B withAmendments1&2-April 2007 IPC-4101B withAmendment 1 - February 2007 IPC-4101B - June 2006 IPC-4101A withAmendment 1 - June 2002 IPC-4101A - December 2001 IPC-4101 - December 1997 IPC-L-108 IPC-L-109 IPC-L-112 IPC-L-115 IPC-AM-361 TableofContents1 .. Sheet Description .. Laminate Thickness .. Cladding Type and Nominal Weight/Thickness .. Metal Cladding Type .. Nominal Weight/Thickness .. Tolerance (Laminate) .. Quality Class .. Style .. Parameters .. Contrast Agents .. and Tolerances.

2 And Imperial Measurements .. 32 APPLICABLE .. Conference of StandardsLaboratories (NCSL) .. Standards .. Laboratories (UL) .. Union .. International .. 53 and Definitions .. Assessment .. Conformance Testing .. s Quality System .. Control Testing .. Declaration .. Assessment Data .. Qualification .. Data .. Test Data .. Internal Assessment .. Customer Audit .. Third Party Assessment .. , Multifunctional .. , Difunctional .. Sheets .. Quality Profile .. Testing .. Testing of Laminate .. Testing of prepreg .. of Manufacturer s QualitySystem .. Cladding .. Fabric .. Systems .. Requirements .. Sheets and Panels .. Fabricated Laminate Sheet material .. Fabricated Laminate Panel material .. Fabricated prepreg Panels .. Fabricated prepreg Rolls .. Lot .. Inspection Lot for Laminate .. Inspection Lot for prepreg .

3 Preparation of Samples .. Etching Process and Etchant Removal forCopper Foil Specimens .. Standard Laboratory Conditions .. Properties .. Laminate Visual Properties .. Foil Indentations .. Wrinkles .. Scratches .. Plastic Surface Finish of Metal-CladSingle-Sided base material .. Surface Finish of Foil after Curing Except Double Treat .. and Subsurface Imperfections .. Visual Properties .. Imperfections .. and Width .. and Width of Laminate .. and Width of prepreg .. Roll Width .. Roll Length .. A, B and C Laminate Materials .. 12 August Class D Laminate Materials .. Class K, L and M Laminate Materials .. Thickness Tolerance of Laminate Materials . Bow and Twist of Laminate Materials .. Sheets and Panels with Both Dimensions 300 mm [ in] .. Panels with One or Both Dimensions<300 mm [ in] .. Requirements .. Requirements of LaminateMaterials.

4 Peel Strength .. Peel Strength after Thermal Stress .. Peel Strength after Process Chemicals(Optional Test) .. Dimensional Stability .. Flexural Strength .. Flexural Strength at Elevated Temperature .. Thermal Conductivity [=] w/(m K) .. Coefficient of Thermal Expansion (CTE)(Optional Test) .. Z-Axis CTE (Optional Test) .. Fracture Toughness .. Requirements of PrepregMaterials .. Resin Content .. Resin Content Percent (RC) (by TreatedWeight) .. Resin Content Percent (RC) (by Burn-Off) .. Treated Weight Total (TW) .. Variation Within a Panel .. Flow Parameter .. Resin Flow Percent (MF) .. Scaled Flow Thickness (SC) .. No Flow (NF) .. Rheological Flow (RE) .. Delta H (DH) .. Percent Cure (PC) .. Time (GT) (Optional Test) .. Content (VC) (Optional Test) .. Requirements .. Chemical Requirements of LaminateMaterials.

5 Stress .. Resistance (Optional Test) .. Surfaces Cleanability .. Delta Tg(Optional Test) .. Chemical Requirements of PrepregMaterials .. Flammability .. Chemical Resistance (Optional Test) .. Requirements .. Electrical Requirements of LaminateMaterials .. Permittivity .. Loss Tangent .. Volume Resistivity .. Surface Resistivity .. Resistance .. Breakdown .. Strength .. Tangent .. Strength .. Requirements .. Environmental Requirements of LaminateMaterials .. Absorption .. Resistance .. Vessel (Optional Test) .. Halogen Content (Optional Test) .. Conductive Anodic Filament (CAF)Growth (Optional Test) .. Environmental Requirements of PrepregMaterials .. Resistance .. Conductive Anodic Filament (CAF)Growth (Optional Test) .. Substitutability of Specification SheetMaterials .. Substitutability of Classes of ThicknessTolerance.

6 Of Substituted Laminates .. Laminate Materials .. prepreg Materials .. of Shipping Containers .. Safety .. Shelf Life .. 184 QUALITY ASSURANCE System .. 18 IPC-4101 CAugust for Inspection .. Equipment and Inspection Facilities .. Testing .. Qualification Profile .. in Composition .. Data Retention .. Conformance Inspection .. Criteria .. Lots .. Data Retention .. of Conformance .. Process Control (SPC) .. 205 PREPARATION FOR Materials .. Distributors .. 206 Information .. Data for Laminate Materials .. Data for prepreg Materials .. Materials .. 217 Search Terms (Electronic/SoftCopy Searches) .. Keyword Search Terms and AllSpecification Sheets that Use the SpecificKeywords for Searching .. Search Terms for All SpecificationSheets .. 22 FiguresFigure 3-1 Thickness Measurements for Laminates .. 13 TablesTable 1-1 Metal Cladding Types.

7 2 Table 1-2 Copper Foil Weight and Thickness .. 2 Table 3-1 Reference Information and Test Frequency ofLaminate .. 6 Table 3-2 Reference Information and Test Frequency ofPrepreg .. 8 Table 3-3 Point Value for LongestDimensions of Indentation .. 10 Table 3-4 Surface Quality Classification .. 10 Table 3-5 Permissible Variation in Length and Width ofLaminates .. 12 Table 3-6 Permissible Variation in Length and Width ofPrepregs .. 12 Table 3-7 Thickness and Tolerances for Laminates .. 13 Table 3-8 Permissible Bow and Twist for Laminates, % .. 14 Table 3-9 Flammability Requirements .. 16 Table 4-1 Quality Conformance Plan for Monthly,Quarterly and Annual Tests Laminate .. 19 Table 4-2 Quality Conformance Plan for Monthly,Quarterly and Annual Tests prepreg .. 19 August 2009 IPC-4101 CviiSpecification for base Materials forRigid and Multilayer Printed Boards1 SCOPEThis Specification covers the requirements for base materi-als, herein referred to as laminate or prepreg , to be usedprimarily for Rigid or multilayer printed boards for electri-cal and electronic ClassificationThe system shown below identifiesclad and unclad laminate or prepreg base Materials .

8 Thespecification sheets serve as a cross-reference connectingthe outlined callout system in this document to previouslyused for laminate base Materials where this specifica-tion is referenced:LMaterial Designator (see )25 Specification Sheet Number (see )1500 Nominal Laminate Thickness (see )C1/C1 Metal Cladding Type and Nominal Weight/Thickness (see )AThickness Tolerance Class (see )ASurface Quality Class (see )Example for prepreg base Materials where this specificationis referenced:PMaterial Designator (see )25 Specification Sheet Number (see )E7628 Reinforcement Style (see )TWResin Content Method (see )REFlow Parameter Method (see )VCOptional prepreg Method (see ) Specification Sheet DescriptionAt the end of thisdocument is a series of Specification sheets. Each specifi-cation sheet outlines requirements for both laminate andprepreg for each product grade.

9 The Specification sheets areorganized by a specific reinforcement type, resin system,and/or construction and are provided with a specificationsheet number for ordering purposes. For convenience, thelaminate and prepreg requirements for Materials of the likecomposition are on the same Specification sheet. MaterialDesignator L indicates laminate material and MaterialDesignator P indicates prepreg material as shown in des-ignation examples in When certifying to multiplespecification sheets, the strongest performance headings for each Specification sheet include referencedefinitions for the material , which cover the reinforce-ments, resin systems, flame retardants, and fillers used, aswell as its other known identifications and glass transitiontemperature, Tg. The specific line items within the specifi-cation sheets are the requirements that materialshallmeetin order to be certified to this Nominal Laminate ThicknessThe nominal thick-ness is identified by four digits.

10 For all substrates coveredby this document, thicknesses may be specified or mea-sured either over the cladding or over the dielectric ( and ). For metric Specification , the first digitrepresents whole millimeters, the second represents tenthsof millimeters, etc. For orders requiring Imperial units, thefour digits indicate the thickness in ten-thousandths of aninch. In the example shown in , 1500 designates a lami-nate with thickness of mm [ in], which wouldbe specified as 0591 when using Imperial Metal Cladding Type and Nominal Weight/ThicknessThe type and nominal weight or thickness ofthe metallic cladding for laminate base material is identi-fied by five designators. The first and fourth designatorsindicate the type of cladding; the third designator is a slashmark that differentiates sides of the base material ; the sec-ond and fifth designators indicate the nominal weight orthickness of the metallic Metal Cladding TypeThe types of metallic clad-ding and the designators representing them are shown inTable 1-1.