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ASTM B904-00(2004)

(Specification)

Standard Specification for Autocatalytic Nickel over Autocatalytic Copper for Electromagnetic Interference Shielding

Standard Specification for Autocatalytic Nickel over Autocatalytic Copper for Electromagnetic Interference Shielding

ABSTRACT
This specification covers the requirements for multilayer coatings of autocatalytic nickel-phosphorus over autocatalytic copper intended for electromagnetic interference or electrostatic discharge shielding to parts fabricated from either polymeric or metallic substrates or parts. Coatings are classified into four types based on thickness and testing requirements, and into two grades based on alloy composition, specifically phosphorus. Surfaces shall be prepared by cleaning it of surface contaminants, conditioning, and activation; identifying of base material suitability; and mechanical roughening. Coatings shouldl be inspected for process qualification, appearance, blisters, unplated areas, adhesion, electrical continuity, and DC resistance. Coatings should also be tested for thickness, which may be performed either by Coulometric, X-ray, or Beta backscatter methods. The requirements for process qualification shall include coating composition, electrical integrity, adhesion, thermal shock resistance, thermal cycling, and shielding effectiveness.
SCOPE
1.1 This specification presents the requirements for multilayer coatings of autocatalytic nickel-phosphorus over autocatalytic copper on metallic and polymeric substrates. The coating system is intended to provide electromagnetic interference (EMI) protection properties or electrostatic discharge (ESD) protection to parts fabricated from either polymeric or metallic materials.

General Information

Status
Historical
Publication Date
30-Sep-2004
ICS
25.220.40 - Metallic coatings
Technical Committee
B08 - Metallic and Inorganic Coatings
Drafting Committee
B08.03 - Engineering Coatings
Current Stage
Ref Project

Relations

Replaces
ASTM B904-00 - Standard Specification for Autocatalytic Nickel over Autocatalytic Copper for Electromagnetic Interference Shielding
Effective Date
01-Oct-2004
Replaced By
ASTM B904-00(2009) - Standard Specification for Autocatalytic Nickel over Autocatalytic Copper for Electromagnetic Interference Shielding
Effective Date
01-Sep-2009

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ASTM B904-00(2004) - Standard Specification for Autocatalytic Nickel over Autocatalytic Copper for Electromagnetic Interference ShieldingASTM B904-00(2004) - Standard Specification for Autocatalytic Nickel over Autocatalytic Copper for Electromagnetic Interference Shielding
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ASTM B904-00(2004) - Standard Specification for Autocatalytic Nickel over Autocatalytic Copper for Electromagnetic Interference Shielding
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information.
Designation: B904 – 00 (Reapproved 2004)
Standard Specification for
Autocatalytic Nickel over Autocatalytic Copper for
1
Electromagnetic Interference Shielding
This standard is issued under the fixed designation B904; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope B554 Practice for Measurement of Thickness of Metallic
3
Coatings on Nonmetallic Substrates
This specification presents the requirements for multilayer
B567 Test Method for Measurement of Coating Thickness
coatings of autocatalytic nickel-phosphorus over autocatalytic
by the Beta Backscatter Method
copper on metallic and polymeric substrates. The coating
B568 Test Method for Measurement of Coating Thickness
system is intended to provide electromagnetic interference
by X-Ray Spectrometry
(EMI) protection properties or electrostatic discharge (ESD)
B602 Test Method for Attribute Sampling of Metallic and
protection to parts fabricated from either polymeric or metallic
Inorganic Coatings
materials.
B697 Guide for Selection of Sampling Plans for Inspection
2. Referenced Documents of Electrodeposited Metallic and Inorganic Coatings
2
B727 Practice for Preparation of Plastics Materials for
2.1 ASTM Standards:
3
Electroplating
A919 Terminology Relating to Heat Treatment of Metals
B733 Specification for Autocatalytic (Electroless) Nickel-
B183 Practice for Preparation of Low-Carbon Steel for
Phosphorus Coatings on Metal
Electroplating
D3330/D3330M Test Method for Peel Adhesion of
B242 Guide for Preparation of High-Carbon Steel for Elec-
Pressure-Sensitive Tape
troplating
D3359 Test Methods for Measuring Adhesion by Tape Test
B252 Guide for Preparation of Zinc Alloy Die Castings for
D4935 Test Method for Measuring the Electromagnetic
Electroplating and Conversion Coatings
4
Shielding Effectiveness of Planar Materials
B253 Guide for Preparation of Aluminum Alloys for Elec-
2.2 Military Standard:
troplating
MIL-STD-461 Electromagnetic Emission and Susceptibil-
B320 Practice for Preparation of Iron Castings for Electro-
ity Requirements for the Control of Electromagnetic
plating
5
Interference
B322 Guide for Cleaning Metals Prior to Electroplating
B374 Terminology Relating to Electroplating
3. Terminology
B504 Test Method for Measurement of Thickness of Me-
3.1 Definitions—Many of the terms used in this specifica-
tallic Coatings by the Coulometric Method
tion can be found in Terminologies A919 or B374.
B532 Specification for Appearance of Electroplated Plastic
3.2 Definitions of Terms Specific to This Standard:
Surfaces
3.2.1 significant surfaces, n—thesesurfacesareclassifiedas
B533 Test Method for Peel Strength of Metal Electroplated
primary, secondary, nonsignificant, and coating-free surfaces.
Plastics
3.2.1.1 coating-free areas, adj—areas specified on part
B553 Test Method for Thermal Cycling of Electroplated
drawings or suitably marked samples.
Plastics
3.2.1.2 nonsignificant surfaces, adj—allholes,recesses,and
other areas where a controlled deposit cannot be obtained
1
This specification is under the jurisdiction of ASTM Committee B08 on
under normal coating conditions and that cannot be touched
Metallic and Inorganic Coatings and is the direct responsibility of Subcommittee
with a 20-mm diameter ball shall be considered nonsignificant
B08.08.01 on Engineering Coatings.
surfacesunlessotherwisespecifiedonpartdrawingsorsuitably
Current edition approved Oct. 1, 2004. Published October 2004. Originally
marked samples.
approved in 2000. Last previous edition approved in 2000 as B904 – 00. DOI:
10.1520/B0904-00R04.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Withdrawn. The last approved version of this historical standard is referenced
Standards volume information, refer to the standard’s Document Summary page on on www.astm.org.
5
the ASTM website. AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
3
Withdrawn. Robbins Ave. Philadelphia, PA 19111–5094, Attn: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
B904 – 00 (2004)
some polymeric substrates by an initial flash deposit of autocatalytic
3.2.1.3 primary significant surface, adj—all mating sur-
nickel.
faces and those other surfaces specified on part drawings or
suitably marked samples.
5. Ordering Information
3.2.1.4 secondary significant surfaces, adj—all surfaces,
other than primary significant surfaces, that can be touched 5.1 To avoid misunderstand
...

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