New Equipment | Assembly Services
One-stop PCB and Assembly Manufacturers Specialized in one-stop PCB and Assembly manufacturing, Heros Electronics is committed to providing quick-turn high quality custom PCB and smt assembly to our customers all over the world with affordable pri
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New Equipment | Assembly Services
One-stop PCB and Assembly Manufacturers Specialized in one-stop PCB and Assembly manufacturing, Heros Electronics is committed to providing quick-turn high quality custom PCB and smt assembly to our customers all over the world with affordable pri
Electronics Forum | Fri Apr 16 11:51:26 EDT 2010 | shawnvike
Looks like a simple variance in the solder mask discoloring. Shawn
Electronics Forum | Fri Apr 16 23:33:41 EDT 2010 | isd_jwendell
If you are trying for a nice reflective surface you will get a white with better spectral reflection if you paint with an appropriate formula after the board is soldered.
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 | 2021-01-06 17:17:19.0
The SMTA Capital Chapter is excited to host the first chapter webinar of 2021 on January20that11:00 AM EST.Fred Dimock, BTU International, will be presenting "Operation of a Vacuum Reflow Oven with Updated Void Reduction Data."
Technical Library | 2013-01-17 15:37:21.0
A problem exists with electroless nickel / immersion gold (ENIG) surface finish on some pads, on some boards, that causes the solder joint to separate from the nickel surface, causing an open. The solder has wet and dissolved the gold. A weak tin to nickel intermetallic bond initially occurs, but the intermetallic bond cracks and separates when put under stress. Since the electroless nickel / immersion gold finish performs satisfactory in most applications, there had to be some area within the current chemistry process window that was satisfactory. The problem has been described as a 'BGA Black Pad Problem' or by HP as an 'Interfacial Fracture of BGA Packages…'[1]. A 24 variable experiment using three different chemistries was conducted during the ITRI (Interconnect Technology Research Institute) ENIG Project, Round 1, to investigate what process parameters of the chemical matrix were potentially satisfactory to use and which process parameters of the chemical matrix need to be avoided. The ITRI ENIG Project has completed Round 1 of testing and is now in the process of Round 2 TV (Test Vehicle) build.
Technical Library | 2018-11-20 21:33:57.0
There are several industry-accepted methods for determining the reliability of flux residues after assembly. The recommended methods of test sample preparation do not always closely mimic the thermal cycle experienced by an assembly. Therefore, extraction from actual assemblies has become a popular method of process control to assess consistency of post-reflow cleanliness. Every method of post-reflow flux residue characterization will depend on the reflow process followed to prepare the coupon.This investigation will focus on the effect of thermal conditions on the remainder of active ingredients in flux residues after assembly with no-clean solder pastes.
EKT AOI machine application: inspection after stencil printing, pre/post reflow oven, pre/post wave soldering?FPC etc. Stencil printing: Solder unavailability, insufficient or excessive solder, solder misalignment, bridging, stain, scratch etc. Compo
Career Center | Phoenix, Arizona | Engineering,Management,Production,Quality Control,Research and Development,Sales/Marketing,Technical Support
• Highly motivated, solution oriented professional with proven record synergizing scientific, engineering, and business administration backgrounds to drive and sustain customer satisfaction and long term improvements. • Articulate communicator that a
SMTnet Express, November 19, 2020, Subscribers: 27,983, Companies: 11,189, Users: 26,264 Every month ... • Of the 88,000 engineers who visit SMTnet, over 87% came from Search engines • So, over 76,000 engineers found your content
SMTnet Express, July 12, 2018, Subscribers: 31,180, Companies: 10,985, Users: 24,934 Improving Thermal Cycle and Mechanical Drop Impact Resistance of a Lead-free Tin-Silver-Bismuth-Indium Solder Alloy with Minor Doping of Copper Additive T. Wada
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/04/Vacuum-Void-Reduction-Reflow-1.pdf
]. Thus even with vacuum reflow, the debate remains regarding the effect of voiding on solder joint reliability. This paper reports the results from a test To be published in the Proceedings of SMTA International, September 17 - 21, 2016, Rosemont, IL
| https://www.smtfactory.com/I-C-T-High-Speed-on-Line-3D-SPI-Solder-Paste-Inspection-Equipment-I-C-T-S400-pd49143724.html
I.C.T High Speed on-Line 3D SPI Solder Paste Inspection Equipment I.C.T-S400 from China manufacturer - Dongguan Intercontinental Technology Co.,Ltd. English Français Pусский Español Português Deutsch Italiano 日本語 한국어 Tiếng Việt
COT specializes in high quality SMT nozzles and consumables for pick and place machines. We provide special engineering design service of custom nozzles for those unique and odd components.
2481 Hilton Drive
Gainesville, GA USA
Phone: (770) 538-0411
