mobile | classic
Dataweek Electronics & Communications Technology Magazine





Follow us on:
Follow us on Facebook Share via Twitter Share via LinkedIn


Search...

Electronics Buyers' Guide

Electronics Manufacturing & Production Handbook 2017


 

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


  Follow us on Facebook Share via Twitter Share via LinkedIn    

Further reading:

  • Electronics news digest
    16 August 2017, News
    South Africa • The CEO of ICASA has been placed on formal suspension. A statement read: “The Council of the Independent Communications Authority of South Africa (ICASA) hereby notifies all stakeholders ...
  • Ghana repurposes communications antenna for astronomy
    16 August 2017, News
    The 32 metre converted telecommunications antenna will be integrated into the African VLB Network in preparation for the second phase construction of the Square Kilometre Array.
  • Practically educating Gauteng’s technical educators
    16 August 2017, News
    The annual Gauteng Department of Education training, which has been running for three years in partnership with Resolution Circle, took place in July.
  • Bluetooth updated for mesh networking
    16 August 2017, Telecoms, Datacoms, Wireless, News
    A highly anticipated mesh networking standard has been introduced to the Bluetooth specification by the Bluetooth Special Interest Group (SIG).
  • From the editor's desk: Fake chips aren’t going away
    16 August 2017, Technews Publishing, News
    Anyone who’s designed and tested electronic circuits will tell you, having a circuit that doesn’t work is not the worst that can happen; it’s the intermittent faults that really hurt. For a product that’s ...
  • Altair student day inspires STEM interest
    16 August 2017, News
    Altair South Africa recently hosted a group of potential engineering students as part of its STEM (Science, Technology, Engineering and Maths) initiative to expose them to the opportunities available ...
  • Wage negotiations deadlocked
    16 August 2017, News
    At the time of writing, wage negotiations are ongoing in the engineering and steel industries. While trade unions have applied for a certificate to launch strike action within the South African engineering ...
  • Locally-made fixed-wireless router
    16 August 2017, News
    Huge Software and Technologies, a sister company of Huge Telecom – the provider of full suite telephony services to corporate organisations and residential homes – has successfully developed its own fixed-wireless ...
  • Win a Microchip MCP9600 evaluation board
    16 August 2017, News
    Microchip’s MCP9600 evaluation board is used to digitise the thermocouple EMF voltage to degrees Celsius with ±1°C accuracy. The device also supports types J, T, N, E, B, S and R. Each of these types ...
  • Electronics news digest
    19 July 2017, News
    South Africa • Weighing just 2,5 kg, South Africa’s first privately owned nanosatellite, nSight1, has been successfully launched into orbit from the International Space Station (ISS). Deployed on 24 ...
  • From the chairman’s desk: Manufacturing in South Africa
    19 July 2017, AREI, This Week's Editor's Pick, News
    Warren Muir reflects on his attendance at the 2017 Manufacturing Indaba, and how it fits in with arei’s plans for the South African electronics industry.
  • SA antennas used in major European tunnel project
    19 July 2017, Poynting Antennas, News
    The Gotthard Base Tunnel, the world’s longest and deepest train tunnel through the Swiss Alps, makes exclusive use of technology from Poynting Antennas to ensure a seamless digital communication service underground over a route length of more than 57 km.

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronic Buyers Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual





 

         
    Classic | Mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.