Ipc-9704 Pdf Upd 99%

Organizations should monitor updates from and JEDEC (www.jedec.org) for future revisions or complementary guidance documents.

IPC-9704 focuses on calculating the and Strain Rate . Principal Strain (

In short, IPC-9704 is the difference between a product that lasts for years and one that fails because of a single, invisible bend.

Sudden stops, gate transitions, or manual handling by operators. Methodology: Strain Measurement Under IPC-9704 ipc-9704 pdf

Identify which assembly or testing processes (e.g., test fixtures) cause the most bending.

The current version, (published 2012), supersedes the original 2005 version to include updated testing methodologies and technologies. Key Objectives of IPC-9704

Compare the peak strain and strain rate values against the customer's or component vendor's maximum limits. How to Access the IPC-9704 PDF Guideline Organizations should monitor updates from and JEDEC (www

Intersection of the 2nd vertical and horizontal row from the package edge BGA packages equal to or larger than 27mm x 27mm Key Testing Steps

Compare the results against the 3000 με limit to ensure the assembly passes. Summary of IPC/JEDEC Strain Standards

Which do you suspect is causing the stress? Sudden stops, gate transitions, or manual handling by

Select the most critical areas on the PCBA based on BGA location.

While IPC-9704A is a methodology document, it is widely used to define acceptable strain levels. A key value derived from the standard is a recommended conservative upper limit of for lead-free solder joints. However, many manufacturers adopt stricter internal control limits, such as 3000 µε , to provide a safety margin. For brittle components like ceramic capacitors, the standard recommends even lower strain limits, often around 500 µε or less.