New Equipment | Education/Training
In this One-Day class you will learn successful techniques to re-ball BGA Components. Both Lead and Lead Free Solder Balls will be covered. The student will have an opportunity to use and evaluate some of the most popular BGA rework fixtures on the
New Equipment | Rework & Repair Equipment
The BEST Gold Contact Replating Kit includes the tools you need for fast replating and modification of circuit contacts. Edge contacts may require replating if they are contaminated with solder or become scratched during handling or do not meet the m
Electronics Forum | Mon Jan 21 06:58:41 EST 2019 | kiransahu
Without PCB layout, not much would get done. It is a ubiquitous need across industries; Industrial, consumer, military...Everywhere you look, there are chips soldered to PCBs to create a final product for the end customer. But where did we all learn
Electronics Forum | Wed Dec 19 02:24:40 EST 2001 | ianchan
Did I mention, we tried to use the same WS flux formulae to brush-cover the affected flex-PCB pads, and subject it to another round of water-wash, followed by oven-baking, and it still doesn't help abit? Oven bake : 100 deg-C, approx 15~30mins (manu
Industry News | 2018-10-18 09:46:58.0
Analysis of how to spot welding process
Industry News | 2018-10-18 08:21:10.0
How to Prevent Non-Wetting Defect during the SMT Reflow Process
Technical Library | 2013-07-25 14:02:15.0
Bottom-termination components (BTC), such as QFNs, are becoming more common in PCB assemblies. These components are characterized by hidden solder joints. How are defects on hidden DFN joints detected? Certainly, insufficient solder joints on BTCs cannot be detected by manual visual inspection. Nor can this type of defect be detected by automated optical inspection; the joint is hidden by the component body. Defects such as insufficients are often referred to as "marginal" defects because there is likely enough solder present to make contact between the termination on the bottom-side of the component and the board pad for the component to pass in-circuit and functional test. Should the board be subjected to shock or vibration, however, there is a good chance this solder connection will fracture, leading to an open connection.
Technical Library | 2019-08-07 22:56:45.0
The requirement to reconsider traditional soldering methods is becoming more relevant as the demand for bottom terminated components (QFN/BTC) increases. Thermal pads under said components are designed to enhance the thermal and electrical performance of the component and ultimately allow the component to run more efficiently. Additionally, low voiding is important in decreasing the current path of the circuit to maximize high speed and RF performances. The demand to develop smaller, more reliable, packages has seen voiding requirements decrease below 15 percent and in some instances, below 10 percent.Earlier work has demonstrated the use of micro-fluxed solder preforms as a mechanism to reduce voiding. The current work builds upon these results to focus on developing an engineered approach to void reduction in leadless components (QFN) through increasing understanding of how processing parameters and a use of custom designed micro-fluxed preforms interact. Leveraging the use of a micro-fluxed solder preform in conjunction with low voiding solder paste, stencil design, and application knowhow are critical factors in determining voiding in QFN packages. The study presented seeks to understand the vectors that can contribute to voiding such as PCB pad finish, reflow profile, reflow atmosphere, via configuration, and ultimately solder design.A collaboration between three companies consisting of solder materials supplier, a power semiconductor supplier, and an electronic assembly manufacturer worked together for an in-depth study into the effectiveness of solder preforms at reducing voiding under some of the most prevalent bottom terminated components packages. The effects of factors such as thermal pad size, finish on PCB, preform types, stencil design, reflow profile and atmosphere, have been evaluated using lead-free SAC305 low voiding solder paste and micro-fluxed preforms. Design and manufacturing rules developed from this work will be discussed.
www.unisoft-cim.com/pcbtest.htm - In minutes the Unisoft ProntoTEST-FIXTURE software translates CAD & BOM files into real reference designators, netlists, X/Y component pin geometries, values, tolerances, part numbers, etc. This data is used by Test
Dennis Odonnell , Vice President of Precision PCB Services, Inc., Oroville CA Explains How to Evaluate a BGA Rework Station ! #BGA Rework Stations http://www.pcb-repair.com/bga-rework-station/
Training Courses | | | PCB Rework and Hand Soldering Courses
The PCB rework and hand soldering courses courses cover techniques of rework and repair of PCBs, BGAs and other electronics assemblies, and teach fundamentals of soldering of electronics assemblies.
Training Courses | | | PCB Rework and Hand Soldering Courses
The PCB rework and hand soldering courses courses cover techniques of rework and repair of PCBs, BGAs and other electronics assemblies, and teach fundamentals of soldering of electronics assemblies.
Events Calendar | Thu Oct 03 00:00:00 EDT 2019 - Thu Oct 03 00:00:00 EDT 2019 | ,
IPC Tech Ed Webinar Series: Ball Grid Array (BGA) and Bottom Termination Component (BTC) Design and Assembly Challenges: Reflow Profiling to Achieve Low Defect Rates and Successful Assembly! – Part 2
---> SMT Express, Volume 3, Issue No. 6 - from SMTnet.com Volume 3, Issue No. 6 Friday, June 15, 2001 Featured Article Return to Front Page PCB Assembly Techniques by Harvey Twyman , University of Kent at Canterbury "I'm sure you
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How to troubleshoot the Hanwha pick and place machine?-SMT Technical-Reflow oven,SMT Reflow Soldering Oven-cmsadmin Home About
Imagineering, Inc. | https://www.pcbnet.com/blog/pcb-assembly-how-does-it-work/
The PCB Assembly Process: How Does It Work? Skip to main content Resources Support Contact Us FAQs Live Chat My Account 847-806-0003 Menu PCB Capabilities Fabrication Technology Roadmap Materials Available HDI Tolerances Certifications
Products, services, training & consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep, Distributor & Service Provider for Seamark/Zhuomao and Shuttle Star BGA Rework Stations.
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