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 2019


 

Drying cabinets for SMT boards avoids component cracking
23 August 2006, Enclosures, Racks, Cabinets & Panel Products

The new Mekko Technologies 'Active Desiccant' range of drying and storage cabinets was designed to guarantee the new class of quality and reliability standards required by surface mount devices and substrates.

By assuring moisture-free components, solder reflow can be achieved without damage from micro-cracking or delamination.

If moisture is absorbed from the environment by surface-mounted components, and then the components are exposed to high temperatures, as in solder reflow ovens (convection, infrared, IR/convection, vapour phase, hot air rework tools), then the absorbed moisture will expand rapidly, causing internal device stresses. This resulting stress can cause internal or external cracking, delamination, and internal corrosion.

Mekko Technologies' unique MTX-flow 'Active Desiccant' component drying and storage technology eliminates 'popcorning' and micro-cracking of ICs and BGAs during reflow. Rather than baking, this drying out of the components resets the 'floor life' clock, offering an optimal solution for storage and drying.

The drying unit is built into the base of the cabinet. With MTX-flow technology, the desiccant rotor rotates in two separate streams of air. One sector has air flowing through it within the cabinet (moisture absorb), while a smaller sector uses an external heated air flow to regenerate the desiccant (moisture release). As the disk rotates, fresh, dry desiccant is always presented to the process air flow.

Benefits of the system include:

* No need for moisture barrier bags, nitrogen or compressed air.

* Less complicated than baking.

* Reduces oxidation.

* Prevents 'popcorning' or other problems associated with ingress of moisture.

* Can use low temperature packaging.

* Closed loop control of internal humidity.

* No 'off' time. Desiccant is always absorbing moisture.

* Powerful molecular sieve type desiccant used.

Much research was done into the air flow, and the design uses a unique air flow system to guarantee speed, efficiency, and minimal cross-over at the wet/dry interface. According to the company, the only consumable costs are an average 50 W of mains power used. There is no need for any extra consumables or services to operate the unit. The rotor drying units continually regenerate the Zeolite desiccant that is used.

For more information contact EIS, +27 (0)11 726 6758.


Credit(s)
Supplied By: Electronic Industry Supplies
Tel: +27 11 726 6758
Fax: 086 510 7402
Email: hreispty@iafrica.com
www: www.eispty.co.za
  Share on Facebook Share via Twitter Share via LinkedIn    

Further reading:

  • Sealed enclosures for industrial electronics
    26 June 2019, Electrocomp, Enclosures, Racks, Cabinets & Panel Products
    Hammond Manufacturing has added 36 new configurations to its 1554 and 1555 sealed enclosure families for Industry 4.0. Available in ABS or polycarbonate with styled, opaque, clear or smoked lids, the ...
  • ebm-papst expands AxiBlade fan range
    26 June 2019, Ebmpapst South Africa, Enclosures, Racks, Cabinets & Panel Products
    Axial fans, which are used in air-conditioning and refrigeration systems such as evaporators, condensers and heat pumps, must fulfil high requirements with regard to air flow, energy efficiency and noise. ...
  • Verotec supplies turnkey enclosure for NMR monitoring
    26 June 2019, Vepac Electronics, Enclosures, Racks, Cabinets & Panel Products
    TgK Scientific’s InsightXpress new stop-flow delivery pumps enable the screening of reaction conditions by nuclear magnetic resonance (NMR) at an unprecedented speed for industrial and academic scientists ...
  • PCB cleaning diagnostic system
    26 June 2019, Electronic Industry Supplies, Test & Measurement
    The Verinas system from PBT Works is a dedicated piece of AOI (automatic optical inspection) equipment for evaluating remaining flux residues on PBT glass test boards. The system can be used by electronics ...
  • Verotec VMEbus hardware chosen for anti-tank system
    29 May 2019, Vepac Electronics, Enclosures, Racks, Cabinets & Panel Products
    Verotec has been selected by a top 10 global defence contractor to supply seven different variants of VMEbus system hardware, backplanes and PSU sub-systems for a land-based US anti-tank system. The ...
  • Aluminium profile enclosures
    29 May 2019, Avnet South Africa, Enclosures, Racks, Cabinets & Panel Products
    In addition to its wide range of plastic enclosures, OKW also offers elegant aluminium enclosures. The two product groups, Synergy and Smart-Terminal, feature good stability, heat dissipation and a high-quality ...
  • Outdoor housings in compact format
    29 May 2019, Phoenix Contact, Enclosures, Racks, Cabinets & Panel Products
    The outdoor housings of the Phoenix Contact ECS series are now also available in a more compact design. The shorter installation depth of 109 mm – instead of 169 mm – is especially suitable for space-critical ...
  • Vacuum test fixture
    30 April 2019, Electronic Industry Supplies, Test & Measurement
    With its newly designed vacuum test fixtures, Ingun has simplified mass testing of a small number of PCB (printed circuit board) versions. The vacuum test fixture combines intuitive handling and a robust, ...
  • Solder dross recovery system
    27 March 2019, Electronic Industry Supplies, Manufacturing / Production Technology, Hardware & Services
    Stannol’s Solder Saver is a mechanical device to reduce dross, which occurs as an unavoidable side effect in wave soldering systems. According to its manufacturer, solder consumption can be reduced by ...
  • Ventilated sensor enclosures
    27 March 2019, Electrocomp, Enclosures, Racks, Cabinets & Panel Products
    The new 1551V miniature ventilated sensor enclosures from Hammond Manufacturing are designed to house sensors and small sub-systems installed in the manufacturing environment as part of IoT (Internet ...
  • Electronics housings for harsh environments
    27 March 2019, Phoenix Contact, Enclosures, Racks, Cabinets & Panel Products
    Phoenix Contact has introduced new electronics housings for especially harsh ambient conditions. The robust housings of the ECS series, with IP69 degree of protection, are suited for a broad temperature ...
  • Extruded aluminium enclosures
    27 March 2019, Sivan Electronic Supplies, Enclosures, Racks, Cabinets & Panel Products
    The extruded aluminium enclosures of Gainta’s ALUG7XX series are available in different sizes, with lengths suitable for indoor desktop device or outdoor wall-mounting junction/control box use. Five ...

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