mobile | classic  
Dataweek Electronics & Communications Technology Magazine


Search...

Electronics Buyers' Guide

Electronics Manufacturing & Production Handbook 2015


 

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:

  • DTI backs AREI at official launch
    25 February 2015, News
    A guest speaker from the DTI assured attendees that the department shares industry’s enthusiasm for the new venture.
  • Altech UEC backs Namec call for DTT spend
    18 March 2015, News
    Danie du Toit, managing director of Altech Multimedia, urges government not to leave local electronics manufacturers out in the cold.
  • Local PCB suppliers join forces
    18 March 2015, News
    The joint venture between EDA Technologies and Cirtech Electronics will benefit from each company’s complementary strengths.
  • Avnet Kopp’s technology seminars a success
    18 March 2015, Avnet Kopp, News
    Delegates expressed their appreciation for how the seminars concentrated on technologies rather than resorting to marketing presentations.
  • UK startup’s flexible ICs lure big investors
    18 March 2015, News
    PragmatIC Printing, a flexible electronics innovator in the UK, has completed a £5,4 million funding round, led by Cambridge Innovation Capital (CIC), with support from ARM Holdings and existing shareholders, ...
  • In-fighting plagues digital TV migration
    18 March 2015, News
    South Africa’s progress towards digital TV broadcasting has for months been bogged down as government, manufacturers and broadcasters bickered over the issue of access control. At the centre of a new ...
  • Cape ECM assembling a solid base for further growth
    4 February 2015, Montar Manufacturing, News, Manufacturing / Production Technology, Hardware & Services
    Six years since publicly announcing its arrival on the South African electronics contract manufacturing (ECM) scene, and seven years since its inception, Montar Manufacturing has made smart use of its ...
  • Man-made trees harvest energy
    25 February 2015, News
    Scientists at VTT Technical Research Centre of Finland have prototyped a tree that harvests solar energy from its surroundings, stores it and turns it into electricity to power small devices such as mobile ...
  • Comtest celebrates 10th anniversary
    25 February 2015, Comtest, News
    The milestone occasion served to not only celebrate the company’s successes, but also to announce a change in leadership.
  • Win a Microchip 3DTouchPad
    25 February 2015, Technews Publishing, News
    Dataweek is offering readers the chance to win a production-ready 2D/3D input sensing development kit and reference design.
  • ARM launches gambit for 2016’s premium mobile devices
    25 February 2015, News
    The main talking point of this lineup – the Cortex-A72 – is based on the 64-bit ARMv8-A architecture while providing full backward compatibility to existing 32-bit software.
  • Appointments
    25 February 2015, News
       Derek Bell has joined Surn Technologies in an account manager capacity. He brings with him a wealth of experience in electronics used in the automotive security industry.    EDA Technologies has hired ...

 
 
         
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.