... The most important attribute of a stencil is its release characteristic. In other words, how well the paste releases from the aperture. The paste release, in turn, depends on the surface characteristics of the aperture wall and stencil foil. The recent introduction of new technology, nano-coating for both stencil and squeegee blades, has drawn the attention of many researchers.
These nano-coatings also refine the solder paste brick shape giving improved print definition. These two benefits combine to help the solder paste printing process produce an adequate amount of solder paste in the correct position on the circuit board pads. Today, stencil aperture area ratios from 0.66 down to ...
High density and miniaturized circuit assemblies challenge the solder paste printing process. The use of small components such as 0201, 01005 and uBGA devices require good paste release to prevent solder paste bridging and misalignment. When placing these miniaturized components, taller paste deposits are often ...
We've been doing a lot of print testing in our lab. In our first set of published results, "The Impact of Reduced Solder Alloy Powder Size on Solder Paste Print Performance1" from IPC/APEX 2016, we revealed a hierarchy of input variables to maximize solder paste transfer efficiency and minimize variation. In that study, we used a ...
How to check reflow CFm -- Dear All, Please help us for the reflow machine my Query is HOW CHECK REFLOW MACHINE CFM( VS, HELLER, JT ETC). YOUR RESPONSE HIGHLY APPRICATTED.
Views: 1271
Dross or Dark Green Mud Found in HAL machine -- hi, I have supplied 100 kg Solder Rods 63/37 to my customer for their New HASL Machine. Once they filled HASL Tank with 80 kgs with fresh Solder (Oily Mud like Dark Green Color Dross like substance was found flowing)
This Substance started on daily basis and during HASL Process and that mud like substance was also seen on PCBS during process and customer was surprised and complained to us about this issue and they are asking for Solder Replacement as they cannot use this Solder in their machine.
We checked with Solder Manufacture but they said there is no problem in Solder and Tried troubleshooting also as per below. ...
Pillarhouse International is delighted to confirm the successful opening of our new Pillarhouse China facility, following a relocation from the central Xiangcheng District of Suzhou to Weixi Road, Suzhou Industrial Park in the north of the city....
IPC is now accepting abstracts for IPC E-Textiles 2023, the international conference for the e-textiles industry, to be held live and in-person on Monday, January 23, 2023, in San Diego ...
Recently, the marketing elites AOI & SPI of ALEADER visited UNICOMP Technology Shenzhen factory for a deep communication regarding Electronics Industry testing and inspection technologies developing trends, marketing strategy and sales promotions, as well as the importance for customers services....
SMTA is a non-profit international association of companies and individuals (totalling 4,000) involved in all aspects of advanced electronics assembly, surface mount and related technologies.
IPC is a US-based trade association dedicated to the competitive excellence and financial success of its nearly 2,600 member companies which represent all facets of the electronic interconnection industry, including design, printed wiring board manufacturing and electronics assembly.