IPC D-640A-2022

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IPC-D-640A

2022 - April

Design and Critical Process

Requirements for Optical Fiber,

Optical Cable and Hybrid Wiring

Harness Assemblies

Supersedes IPC-D-640

June 2016

An international standard developed by IPC

copying, scanning or other reproduction of these materials without the prior written consent of the copyright holder is strictly prohibited and constitutes

infringement under the Copyright Law of the United States.

The Principles of

Standardization

Notice

IPC Position

Statement on

Specication

Revision Change

Why is there

a charge for

this document?

In May 1995 the IPC’s Technical Activities Executive Committee (TAEC) adopted Principles of

Standardization as a guiding principle of IPC’s standardization efforts.

IPC Standards and Publications are designed to serve the public interest through eliminating

misunderstandings between manufacturers and purchasers, facilitating interchangeability and

improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay

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Your purchase of this document contributes to the ongoing development of new and updated industry

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Standards Should:

• Show relationship to Design for Manufacturability

(DFM) and Design for the Environment (DFE)

• Minimize time to market

• Contain simple (simplied) language

• Just include spec information

• Focus on end product performance

• Include a feedback system on use and

problems for future improvement

Standards Should Not:

• Inhibit innovation

• Increase time-to-market

• Keep people out

• Increase cycle time

• Tell you how to make something

• Contain anything that cannot be

defended with data

IPC-D-640A

Developed by the Fiber Optic Cable Acceptability Task Group (7-31m)

of the Acceptability Subcommittee (7-31) of IPC

Design and Critical

Process Requirements

for Optical Fiber, Optical

Cable and Hybrid Wiring

Harness Assemblies

Supersedes:

IPC-D-640 - June 2016

Users of this publication are encouraged to participate in the

development of future revisions.

Contact:

IPC

3000 Lakeside Drive, Suite 105 N

Bannockburn, Illinois

60015-1249

Tel 847 615.7100

Fax 847 615.7105

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摘要：

IPC D-640A-2022是国际电子工业联接协会（IPC）发布的最新版关于印制电路板（PCB）组装后清洁度要求的标准规范，主要针对助焊剂残留、离子污染物及非离子污染物的可接受水平提供量化指标与检测方法。该标准替代了上一版本，进一步细化了不同可靠性等级产品的清洁度验收阈值，并引入了更精确的表面绝缘电阻（SIR）测试与离子色谱分析流程。对于电子制造企业、SMT工程师及质量控制人员而言，遵循IPC D-640A-2022有助于降低电化学迁移及漏电风险，确保产品在高温高湿等严苛环境下的长期可靠性，是

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