IPC standard for PCB cleanliness
17 March 2010
News
IPC has released a new cleaning standard, IPC-5704 ‘Cleanliness Requirements for Unpopulated Printed Boards’, which defines the recommended requirements for the cleanliness of unpopulated single, double-sided and multilayer printed circuit boards.
A vital complement to the June 2007 release of IPC-5702 which describes factors to consider when determining what tests to run for assessing the impact/risk of residues on long-term life (eg, end-use environment, design/service life and technology involved), IPC-5704 provides the hard specifications and requirements for maximum limits of ionic contamination using ion chromatography testing. In addition, IPC-5704 delivers industry guidance on cleanliness testing for both product acceptance and process control, verifying that all equipment and chemistries are stable.
“The cleanliness of a printed board can directly impact the effectiveness or quality of an assembled printed board,” explains IPC technical project manager, John Perry. “Residues increase the risk of field failures or can electrically impede a printed board’s function, so having acceptance criteria for various levels of testing, as well as direction on how many samples should be tested, is extremely important.”
Referenced in the new cleanliness standard, IPC-TM-650 Method 2.3.28.2, Bare Printed Board Cleanliness by Ion Chromatography is the new test procedure that should be used in conjunction with IPC-5704 to measure the level of anionic and cationic residues on the surface of unpopulated (bare) printed boards by ion chromatography.
For more information visit www.ipc.org
Further reading:
Technical resource centre for smart cities
News
Mouser’s infrastructure and smart cities content hub features comprehensive articles, blogs, eBooks, and products from Mouser’s technical team and trusted manufacturing partners.
Read more...
UFS Flash named Best in Show
EBV Electrolink
News
KIOXIA Europe GmbH was named as winner in the Memory & Storage category of the Embedded Computing Design (ECD) electronica Best in Show Awards at the recently held electronica 2024.
Read more...
Save the date for Securex South Africa 2025
News
Home to Africa’s largest collection of security solutions, Securex South Africa returns to Gallagher Convention Centre in Midrand from 3 to 5 June 2025.
Read more...
Trina Storage ranked in top 10
News
Amidst the global energy storage market, Trina Storage has once again earned recognition from authoritative institutions with its outstanding innovation capabilities and global layout.
Read more...
2025 outlook for DRAM is poor
News
According to TrendForce, weak demand outlook and rising inventory and supply forecast to pressure DRAM prices down for 2025.
Read more...
Price hike to challenge energy reforms
News
Eskom’s proposed 44% price hike could undermine renewable energy gains despite tech innovation.
Read more...
IO Ninja debugging tool
RF Design
News
Tibbo has released a major update to IO Ninja, its versatile communications debugging tool for Windows, Linux, and macOS.
Read more...
Young SA robotics team takes world title
News
In a demonstration of innovation and teamwork, Texpand, a South African youth robotics team based in Cape Town, recently made history by winning the 2024 FIRST Tech Challenge (FTC) World Championships.
Read more...
From the editor's desk: A brave new world
Technews Publishing
News
The technology Tesla currently uses in its cars from the batteries, power electronics, controllers, through to the mechanics, gearboxes, and the AI inference computer and software have are incorporated in the development of Optimus, allowing the development of the robot to gain impressive features in a relatively short time span.
Read more...
Seven Labs partnership enhances local electronics distribution
Seven Labs Technology
News
Aimed at revolutionising the electronics distribution landscape in South Africa, Seven Labs has announced a partnership with LCSC, one of China’s most reputable electronics distributors.
Read more...
printer friendly version