New Equipment | Rework & Repair Equipment
Semi automatic bga rework station machine to desolder and solder chip on mobile pcb Features: 1. Made of quality heating material;desoldering and solding procedures of BGA are precisely controlled; 2. Movable heating head,which can be moved
New Equipment | Cleaning Equipment
PCB Washing machine Fixture cleaning equipment and Batch cleaning system Features: 1. A comprehensive cleaning system: the surface of the product residues of organic matter, inorganic substances for thorough and effective cleaning; 2.
Electronics Forum | Wed Jan 12 10:05:20 EST 2005 | Dreamsniper
we are using polyimide boards 6 inches x 7 inches, 2.5mm thick, 12 to 14 layers, for aerospace industries. I am using a long bake of 12 hours at 70'C prior to manufacturing or exposure to elevated reflow and wave soldering temperature. If schedule i
Electronics Forum | Sat Jan 08 08:50:35 EST 2005 | davef
Normally, you should not have to bake boards that are properly packaged and stored. Since you are seeing problems, baking makes sense. Consider 125C for 4 to 6 hours. Additionally, look here for more, while waiting for others: http://www.smtnet.
Used SMT Equipment | Soldering - Reflow
The latest breakthroughs associated with the Mark 5 reflow system now provide you with an even lower cost-of-ownership. Heller's new heating and cooling advances deliver up to 40% reduction in nitrogen and electrical consumption. This makes the MK 5
Industry News | 2012-04-06 15:32:39.0
GPD Global, a manufacturer of precision fluid dispensing systems for high-volume 24/7, low-volume/high-mix and R&D production, announces the global release of its PCD4 Dispense Pump after its successful release and testing in the North American market.
Industry News | 2022-12-14 12:21:04.0
MIRTEC will premier its complete line of 3D AOI and SPI Inspection Systems in Booth #1841 at the 2023 IPC APEX EXPO. The premier technical conference and exhibition for the electronics manufacturing industry will take place Jan. 24-26, 2023, at the San Diego Convention Center in California.
Parts & Supplies | SMT Equipment
contact person:banny chen mail:zksale@hysmt.cn skype:miayuan8 best quality & lower price more than we can offer 40000631 CABLE SAFETY B 40000746 CABLE CLAMP X 40001255 SENSOR CABLE GUIDE 50 40001261 SENSOR CABLE GUIDE 60 40001306 CABLE
Technical Library | 2018-09-21 10:12:53.0
Moisture accumulates during storage and industry practice recommends specific levels of baking to avoid delamination. This paper will discuss the use of capacitance measurements to follow the absorption and desorption behaviour of moisture. The PCB design used in this work, focused on the issue of baking out moisture trapped between copper planes. The PCB was designed with different densities of plated through holes and drilled holes in external copper planes, with capacitance sensors located on the inner layers. For trapped volumes between copper planes, the distance between holes proved to be critical in affecting the desorption rate. For fully saturated PCBs, the desorption time at elevated temperatures was observed to be in the order of hundreds of hours. Finite difference diffusion modelling was carried out for moisture desorption behaviour for plated through holes and drilled holes in copper planes. A meshed copper plane was also modelled evaluating its effectiveness for assisting moisture removal and decreasing bake times. Results also showed, that in certain circumstances, regions of the PCB under copper planes initially increase in moisture during baking.
Technical Library | 2013-01-05 22:21:01.0
More and more countries legislate to forbib lead usage in solder material. However, the lead-free solder wire has higher melting point and soldering temperature, increase soldering iron temperature may damage the PCB or components. How to solve this problem?
With the development of miniaturization of assembly components, the layout area and pattern design area of PCBs have also been continuously reduced, and PCB manufacturers are constantly updating the production process to conform to the development tr
Events Calendar | Wed Apr 18 00:00:00 EDT 2018 - Thu Apr 19 00:00:00 EDT 2018 | ,
Stencil Printing Process and Solder Paste Inspection – An In-Depth Look - SMTA Webtorial
Events Calendar | Tue Apr 13 00:00:00 EDT 2021 - Tue Apr 13 00:00:00 EDT 2021 | ,
Boston Chapter Webinar: Cleaning Chemistry For PWB and Rework - Part 2, session 1
Article Return to Front Page A Low Temperature Alte
Article Return to Front Page A Low Temperature Alte
Surface Mount Technology Association (SMTA) | https://www.smta.org/knowledge/proceedings_abstract.cfm?PROC_ID=5027
Effects of Cl2, NO2, Rh and Temperature on Accelerated Silver and Copper Corrosion in Mixed Flowing Gas Test 中文 MEMBERS LOGIN Membership Become a Member
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