Qualification and Performance of Electrical …

1 IPC-CC-830B with Amendment 1 Qualification andPerformance of ElectricalInsulating Compound forPrinted Wiring AssembliesDeveloped by the Conformal Coating Task Group (5-33a) of the Cleaningand Coating Committee (5-30)Users of this publication are encouraged to participate in thedevelopment of future :IPC3000 Lakeside Drive, Suite 309 SBannockburn, Illinois60015-1249 Tel 847 847 :IPC-CC-830B - August 2002 IPC-CC-830A withAmendment 1 - July 1999 IPC-CC-830A - October 1998 IPC-CC-830 - January 1984 Table of Contents1 .. 12 APPLICABLE .. Society for Testing of Materials .. Laboratories .. 23 Requirements .. and Definitions .. and Testing Requirements .. Inspection and Testing .. Retention Inspection and Testing .. Conformance Inspection Testing .. Testing .. Requirements .. Life .. Requirements .. Transform Infrared SpectroscopyTest (FTIR) .. Requirements .. Resistance .. Requirements .. Withstanding Voltage (DWV) .. Requirements.

2 And Insulation Resistance .. Shock .. and Humidity Aging(Hydrolytic Stability) .. Requirements .. 54 QUALITY ASSURANCE for Inspection .. of Inspection and Frequency .. Inspection .. Retention Inspection .. Conformance Inspection .. Change .. Equipment and Inspection Facilities .. Laboratory Conditions .. Temperature Variation inEnvironmental Chambers .. Conditions .. Routine .. Sampling .. Vehicles .. Size .. Prior to Coating .. Reporting .. Reporting .. Retention Reporting .. Conformance Reporting .. 75 PREPARATION FOR .. 86 Data .. Change .. Compatibility .. of Solvent SensitiveConformal Coatings .. 8 October 2008 IPC-CC-830B with Amendment 1iiiAppendix A Example of Qualification 9 Appendix B Example of Qualification RetentionInspection 10 Appendix C Example of Quality ConformanceInspection 11 FiguresFigure 4-1 IPC-B-25A .. 7 Figure 4-2 Test Coupon with Y Shape Pattern .. 7 TablesTable 3-1 Requirements for Qualification , QualificationRetention and Quality Conformance ofConformal Coating Products.

3 3 Table 4-1 Test Vehicles and Sample Sizes .. 6 Table 4-2 Thickness Requirements on Test Vehicle .. 7 IPC-CC-830B with Amendment 1 October 2008ivQualification and Performance of Electrical InsulatingCompound for Printed Wiring Assemblies1 ScopeThis standard establishes Qualification andconformance requirements for Electrical insulating com-pounds (conformal coatings). It has been designed and con-structed with the intent of obtaining maximum confidencein the materials with minimum test redundancy. This stan-dard covers: The Qualification and Qualification retention of the confor-mal coating material (Table 3-1, Column A and B). The quality conformance of conformal coating materialproperties (Table 3-1, Column C).For the purpose of this standard, the term conformal coat-ing is used herein when referring to a type of protectivecoating for use on printed wiring assemblies. The confor-mal coating is intended to provide protection from moistureand contamination and provide Electrical insulation; not asa sole source of mechanical the purpose of this standard, inspections are performedon standardized test vehicles instead of real productionassemblies.

4 A standardized test vehicle refers to the testvehicle specified per test method indicated, coated with theconformal coating under PurposeWith standardized testing on standardizedtest vehicles under test conditions specified in test methodslisted herein, this standard enables a manufacturer toqualify his conformal coating product and express thequalification it possesses. This standard also enables themanufacturer to attest the conformance of the quality ofproduction to the Qualification of each TypesConformal coatingsshallbe categorizedinto types by the cured chemistry of the coating. The typefor multifunctional materialsshallbe based on the chemis-try type which is the highest percentage by coatingsshallbe of the following types:Type AR AcrylicType ER EpoxyType SR SiliconeType UR PolyurethaneType XY ClassesAlthough previous versions of IPC-CC-830 made reference to Class A and Class B coating classi-fications, these classifications have been removed.

5 To bequalified to this specification, a coating must be hydrolyti-cally stable (formerly Class B). Non-hydrolytically stablecoatings (formerly Class A) no longer meet the require-ments of this specification and usage will only be AsAgreed Between User and Supplier (AABUS). Coatingsthat meet the requirements of Class B coatings in previousdocument revisions meet the requirements of this :Earlier versions of this specification, as well asother IPC documents, made reference to Class 1, Class2, and Class 3 inspection and testing requirements forthese classes that were not directly correlated to the previ-ous Class A and B Interpretation Shall, the imperative form of theverb, is used throughout this standard whenever a require-ment is intended to express a provision that is from a shall requirement may be considered ifsufficient data is supplied to justify the words should and may are used whenever it isnecessary to express nonmandatory provisions.

6 Will isused to express a declaration of assist the reader, the word shall is presented in APPLICABLE DOCUMENTSThe following documents of the issue currently in effectform a part of this standard to the extent specified IPC1 IPC-B-25 AMultipurpose Test BoardIPC-T-50 Terms and Definitions for Interconnecting andPackaging Electronic CircuitsIPC-TM-650 Test Methods Withstanding Voltage - PolymericConformal Resistance - Conformal and Insulation Resistance - ConformalCoating1. Current and revised IPC Test Methods are available through IPC-TM-650 subscription and on the IPC Web site ( ).October 2008 IPC-CC-830B with Amendment 11