New Equipment | Rework & Repair Equipment
BEST circuit frames come in both dry film and epoxy versions. We can produce circuit frames in 1 and 2 oz copper as well as with shiny tin or nickle gold coating. These circuit frames are microetched on the board side in order to insure better adhesi
New Equipment | Solder Paste Stencils
Product material: stainless steel (internal) + steel plate baking paint Storage quantity: 36 cans of tin paste Product weight: 13kg Product size: 495 * 750 * 95mm Application: SMT workshop solder paste storage control, first in, first out
Industry News | 2010-09-13 15:36:15.0
IPC — Association Connecting Electronics Industries® has released IPC-1601, Printed Board Handling and Storage Guidelines. The industry's sole standard on the handling, packaging and storage of printed boards, IPC-1601 provides users with guidance on how to protect printed boards from contamination, physical damage, solderability degradation, electrostatic discharge and moisture uptake.
Industry News | 2018-10-18 08:32:52.0
How to Prevent Solder Ball and Bridging Defects during the SMT Reflow Process
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.
Full Automatic V-cut PCB Depaneler Introduction: This equipment can further improve the quality of depaneling. It can realize V-groove XY two-way automatic cutting, cutting aluminum & FR4 boards without burr, can connect the assembly line to realize
Surface Mount Technology Association (SMTA) | https://www.smta.org/knowledge/journal.cfm
. SMTA JOURNAL ARTICLES: 1999 - Present Allow time for larger file downloads. YEAR VOL. TITLE AUTHOR 2019 32-3 Characterization of Soldered Plated Through Holes (PTHs
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