New Equipment | Assembly Services
Hanwha HM520 SMT Assembly Line Hanwha HM520 SMT Assembly Line, Usage: PCB production, Full Automatic Assembly line, Speed: 80000CPH, it's with Automatic PCB Loader, Automatic SMT stencil Printer, Koh Young KY 8080 3D SPI, Automatic Pick and place ma
New Equipment | Assembly Services
Hanwha XM520 SMT Assembly Line Hanwha XM520 SMT Assembly Line, Usage: PCB production, Full Automatic Assembly line, Speed: 100000CPH, it's with Automatic PCB Loader, Automatic SMT stencil Printer, Koh Young KY 8080 3D SPI, Automatic Pick and place m
Electronics Forum | Mon May 07 16:07:05 EDT 2012 | davef
Start with targets based on the stencil thickness (for height) and stencil thickness times the aperture size (for volume). * Set reasonable upper and lower control limits (+ 25% and –25 % of the targets, for example). * Next, check the printer set-u
Electronics Forum | Wed Jan 16 15:22:29 EST 2002 | Terry Burnette
In his book titled "Manufacturing Techniques for Surface Mount Assemblies" author R.J. Klein Wassink describes the relationship between solder land dimensions, component lead coplanarity, board warpage, solder volumes, and solder paste flux wetting b
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Used SMT Equipment | SPI / Solder Paste Inspection
The LSM300 follows the successful Laser section Microscopes LSM and LSM2. This new non-contact laser based system is an off-Line solder paste inspection system.LSM300 provides automatic height measurements, eliminating the inconsistencies of manual m
Industry News | 2003-06-10 08:16:44.0
The following text describes the application of NWA Quality Analyst to quality control in the assembly of electronic components.
Industry News | 2018-10-18 08:32:52.0
How to Prevent Solder Ball and Bridging Defects during the SMT Reflow Process
Technical Library | 2023-08-04 15:27:30.0
A designed experiment evaluated the influence of several variables on appearance and strength of Pb-free solder joints. Components, with leads finished with nickel-palladium-gold (NiPdAu), were used from Texas Instruments (TI) and two other integrated circuit suppliers. Pb-free solder paste used was tin-silver-copper (SnAgCu) alloy. Variables were printed wiring board (PWB) pad size/stencil aperture (the pad finish was consistent; electrolysis Ni/immersion Au), reflow atmosphere, reflow temperature, Pd thickness in the NiPdAu finish, and thermal aging. Height of solder wetting to component lead sides was measured for both ceramic plate and PWB soldering. A third response was solder joint strength; a "lead pull" test determined the maximum force needed to pull the component lead from the PWB. This paper presents a statistical analysis of the designed experiment. Reflow atmosphere and pad size/stencil aperture have the greatest contribution to the height of lead side wetting. Reflow temperature, palladium thickness, and preconditioning had very little impact on side-wetting height. For lead pull, variance in the data was relatively small and the factors tested had little impact.
Technical Library | 2020-07-29 19:58:48.0
The majority of flexible circuits are made by patterning copper metal that is laminated to a flexible substrate, which is usually polyimide film of varying thickness. An increasingly popular method to meet the need for lower cost circuitry is the use of aluminum on Polyester (Al-PET) substrates. This material is gaining popularity and has found wide use in RFID tags, low cost LED lighting and other single-layer circuits. However, both aluminum and PET have their own constraints and require special processing to make finished circuits. Aluminum is not easy to solder components to at low temperatures and PET cannot withstand high temperatures. Soldering to these materials requires either an additional surface treatment or the use of conductive epoxy to attach components. Surface treatment of aluminum includes the likes of Electroless Nickel Immersion Gold plating (ENIG), which is extensive wet-chemistry and cost-prohibitive for mass adoption. Conductive adhesives, including Anisotropic Conductive Paste (ACP), are another alternate to soldering components. These result in component substrate interfaces that are inferior to conventional solders in terms of performance and reliability. An advanced surface treatment technology will be presented that addresses all these constraints. Once applied on Aluminum surfaces using conventional printing techniques such as screen, stencil, etc., it is cured thermally in a convection oven at low temperatures. This surface treatment is non-conductive. To attach a component, a solder bump on the component or solder printed on the treated pad is needed before placing the component. The Aluminum circuit will pass through a reflow oven, as is commonly done in PCB manufacturing. This allows for the formation of a true metal to metal bond between the solder and the aluminum on the pads. This process paves the way for large scale, low cost manufacturing of Al-PET circuits. We will also discuss details of the process used to make functional aluminum circuits, study the resultant solder-aluminum bond, shear results and SEM/ EDS analysis.
https://www.ascen.ltd/Products/Solder_paste_printer/513.html full auto PCB screen printer and SMT solder paste printing machine with Image and optical system,It is a very accurate fully automatic SMT stencil printer.automatic PCB screen printer main
I.C.T Provide SMT Production Line solutions with Automated Optical Inspection (AOI) AOI is short for Automated Optical Inspection, which is widely used in the electronics industry to check the appearance of PCBA assembly at the back end of the cir
Training Courses | | | PCB Assembly Courses
The PCB assembly courses provide knowledge of different processes and equipment used in TH and SMT assembly of printed circuit boards.
Training Courses | | | PCB Assembly Courses
The PCB assembly courses provide knowledge of different processes and equipment used in TH and SMT assembly of printed circuit boards.
Career Center | brampton, Ontario Canada | Engineering,Management,Production,Technical Support
- More than 14 years of experience in set-up, calibrate, program, troubleshoot SMT machines and SMT process, for the manufacturing of PCB Electronic Assemblies - 5 year experience in leading position for electronic manufacturing/Process Engineering.
Career Center | , | Engineering,Sales/Marketing,Technical Support
Applications Engineer with over 20 years of combined Manufacturing/Field Service/Applications Engineering experience in the SMT industry.
SMTnet Express, April 16, 2015, Subscribers: 22,628, Members: Companies: 14,302, Users: 38,055 Stereo Vision Based Automated Solder Ball Height Detection Jinjin Li, Lina J. Karam; School of Electrical, Computer, & Energy Engineering, Arizona State
SMT Express, Volume 3, Issue No. 5 - from SMTnet.com Volume 3, Issue No. 5 Thursday, May 17, 2001 Featured Article Return to Front Page Solder Paste Measurement: A Yield Improvement Strategy That Helps Improve Profits by Mike Riddle , ASC
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/Vacuum-Void-Reduction-Reflow.pdf
Vacuum Reflow Processing On Solder Joint Voiding To be published in the Proceedings of SMTA International, September 17 - 21, 2016, Rosemont, IL
| https://www.eptac.com/webinars/how-to-create-the-perfect-solder-joint/
How to Create the Perfect Solder Joint - EPTAC - Train. Work Smarter. Succeed Looking for solder training standards, manuals, kits, and more
