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SMT Stencil Printer/ PCB Printers/ Solder Paste Stencil Printer Semi-Auto Main product: Stencil Printer, Semi-Automatic Printing, PCB Printer, screen printing, SMT Stencil Printer, SMT screen printer, SMT printer, Solder Paste Printer, SMT solder p
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On the cutting edge of technology, we offer a full line of high tech services to assist contract manufacturer's and product research and developers. Specializing in quick turn around times to help get your product to market on time. Training Serv
Electronics Forum | Wed Jun 15 10:38:41 EDT 2016 | laynefelix
Hi everyone..i am new here. I am hardware design engineer and as per my experience PCBAs came out cold soldered after being reflowed the first time with ALPHA WS-820. The flux gel ALPHA WS 609 was supposed to be applied only onto the terminations of
Electronics Forum | Wed Jun 17 16:08:37 EDT 1998 | upinder singh
We are facing a problem of high contamination on boards after wave soldering. We want the contamination to be under 24 ugm/inch square. We are using a no clean flux with the spray fluxer unit of wave soldering. The contamination is higher on the end
Used SMT Equipment | Soldering - Wave
this type can be added with nitrogen protection system 1 Flux spraying system 1.1 Spray fluxer can sense the board size automatically, and the spraying area can be adjusted according to the width of PCB. 1.2 Spray fluxer can sense the conveyor
Used SMT Equipment | Pick and Place/Feeders
=1.0 ±50/Chip Cpk>=1.0 ±35/QFP Cpk>=1.0 ±50/Chip Cpk >=1.0 ±35/QFP Cpk >=1.0 Productive Highest Tact (CPH/sec) 25,000/0.144 19,000/0.189 7,200/0.5 Effectiveness Tact (CPH/sec) 17,000/0.21 14,000/0.26 5,000/0.72 PCB trans
Industry News | 2018-10-18 09:25:57.0
about wave soldering machine tin pot
Industry News | 2018-10-18 09:20:09.0
Product defects caused by the flux in the wave soldering process
Technical Library | 2016-12-29 15:37:51.0
The reliabilities of the flux residue of electronic assemblies and semiconductor packages are attracting more and more attention with the adoption of no-clean fluxes by majority of the industry. In recent years, the concern of "partially activated" flux residue and their influence on reliability have been significantly raised due to the miniaturization along with high density design trend, selective soldering process adoption, and the expanded use of pallets in wave soldering process. When flux residue becomes trapped under low stand-off devices, pallets or unsoldered areas (e.g. selective process), it may contain unevaporated solvent, "live" activators and metal complex intermediates with different chemical composition and concentration levels depending on the thermal profiles. These partially-activated residues can directly impact the corrosion, surface insulation and electrochemical migration of the final assembly. In this study, a few application tests were developed internally to understand this issue. Two traditional liquid flux and two newly developed fluxes were selected to build up the basic models. The preliminary results also provide a scientific approach to design highly reliable products with the goal to minimize the reliability risk for the complex PCB designs and assembly processes. This paper was originally published by SMTA in the Proceedings of SMTA International
Technical Library | 2022-12-19 18:59:51.0
Material and Process Characterization studies can be used to quantify the harmful effects that might arise from solder flux and other process residues left on external surfaces after soldering. Residues present on an electronic assembly can cause unwanted electrochemical reactions leading to intermittent performance and total failure. Components with terminations that extend underneath the package can trap flux residue. These bottom terminated components are flush with the bottom of the device and can have small solderable terminations located along the perimeter sides of the package. The clearance between power and ground render high electrical forces, which can propagate electrochemical interactions when exposed to atmospheric moisture (harsh environments). The purpose of this research is to predict and understand the functional performance of residues present under single row QFN component packages. The objective of the research study is to develop and collect a set of guidelines for understanding the relationship between ionic contamination and electrical performance of a BTC component when exposed to atmospheric moisture and the trade-offs between electrical, ionic contamination levels, and cleanliness. Utilizing the knowledge gained from undertaking the testing of QFN components and associated DOE, the team will establish a reference Test Suite and Test Spec for cleanliness.
High Quality Selective Wave Soldering Machine If you could not find any similar items you want, you may send some photos to us. because our catalog and website haven't included allof our products. wave soldering, wave soldering machine, D
ETA W2 Wave Soldering Equipment If you could not find any similar items you want, you may send some photos to us. because our catalog and website haven't included allof our products. wave soldering, wave soldering machine, DIP soldering, select
Events Calendar | Wed Apr 21 00:00:00 EDT 2021 - Wed Apr 21 00:00:00 EDT 2021 | ,
Oregon Chapter Tutorial: How Clean is Clean and How Do You Know for Sure?
Career Center | Theni, Tamilnadu India | Engineering
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Effects of reflow profile and thermal conditioning on intermetallic compound thickness for SnAgCu soldered joints. Effects of reflow profile and thermal conditioning on intermetallic compound thickness for SnAgCu soldered joints. The purpose
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_wave-soldering-sot23_topic995.xml
PCB Libraries Forum : Wave Soldering SOT23 PCB Libraries Forum : Wave Soldering SOT23 This is an XML content feed of; PCB Libraries Forum
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/select/soldering-processes/selective-vs-wave-soldering
. Additional, wave soldering disadvantages include: High solder consumption High flux consumption High power consumption High nitrogen consumption An increase in post-wave solder rework Masking of sensitive areas on PCB assemblies Cleaning of wave
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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