Industry Directory | Manufacturer
Hitechpcba is a wоrld-lеаding PCB Manufacturing & PCB Assembly company with more than 20 years experience in the electronics manufacturing industry. We focus on Circuit board fabrication, PCB assembly, electronic parts sourcing.
Industry Directory | Manufacturer
HAODA ELECTRONIC CO.,LIMITED specializes in high-speed turn-key PCB services:PCB design, PCB Fabrication, PCBA and Components Sourcing, we provide services for about 4000 customers around the world.
New Equipment | Fabrication Services
Rigid flex printed circuit boards (PCBs) are manufactured by combining rigid and flexible board technologies. These circuit boards are made up of multiple flexible circuit inner layers. An epoxy pre-preg bonding film is used to attach together these
New Equipment | Fabrication Services
Flexible PCB includes single sided FPC, double sided FPC and multilayer FPC, etc. Single FPC has chemically etched conductive pattern layer, the conductive pattern layer on the surface of the flexible insulating substrate is calendered copper foil. T
Electronics Forum | Tue Mar 18 17:23:40 EDT 2008 | dkntb
Any member in here has experienced of copper migration from BGA's substrate to PWB during eutectic soldering reflow process, which resulted in brittle solder joints??? We have one customer notified us that our PBGA with DSOP substrate having copper m
Electronics Forum | Mon Nov 07 12:25:32 EST 2005 | Rob
Hi CW, Larger chip caps can be susceptable to cracking, but mainly this is due to handling - flexing of boards is the main culprit (the part being mechanically joined at both ends to the board). PCB's usually flex easiest along one axis, and larger
Used SMT Equipment | Turnkey Lines
Functional Pre-Owned Complete SMT Assembly Line - Still Operational (Subject to prior sell, I am listing this on other venues) Up for sale is a full turnkey SMT line and all of it's accessories, of which there are a lot, fe
Industry News | 2003-06-24 08:14:51.0
R/flex� 3850 laminate is produced in a range of copper and LCP thicknesses, just as the single-clad laminate, and is available in standard panel formats.
Industry News | 2003-03-14 09:03:48.0
Sarantel has developed a surface-mount version of its active GeoHelix miniature GPS antenna.
Parts & Supplies | Pick and Place/Feeders
KHY-M221A-A0 KGT-M221A-A0 YAMAHA YG12 tank chain gland KHY-M2267-00 YG12 tank chain YS12 towline keel X axis PISCO SP2550 R75 KHY-M2276-S0 YS12 screw X-axis YG12 X-axis screw YG12F YS12F screw guide KHY-M371R-00 RAIL GUIDE 12P YS24 YS100 Feida pl
Technical Library | 2022-09-25 20:18:33.0
Printed circuit board (PCB) bending and/or flexing is an unavoidable phenomenon that is known to exist and is easily encountered during electronic board assembly processes. PCB bending and/or flexing is the fundamental source of tensile stress induced on the electronic components on the board assembly. For more brittle components, like ceramic-based electronic components, micro-cracks can be induced, which can eventually lead to a fatal failure of the components. For this reason, many standards organizations throughout the world specify the methods under which electronic board assemblies must be tested to ensure their robustness, sometimes as a pre-condition to more rigorous environmental tests such as thermal cycling or thermal shock.
Technical Library | 2010-07-08 19:49:59.0
Aging characteristics of new lead free solder alloys are in question by many experts because of higher amount of tin’s effect on the diffusion of other metals, primarily copper, to create undesirable boundary intermetallics over long periods of time and even moderately elevated temperatures. A primary layer of intermetallics, Cu6Sn5 forms as the liquid solder makes contact with the solid copper substrate. This reaction however ceases as the solder temperature falls below that of liquidus. A secondary intermetallic Cu3Sn1, an undesirable weak and brittle layer, is thought to form over time and may be accelerated by even mildly elevated temperatures in electronic modules such as laptops under power. This project was designed to quantify the growth rate of Cu3Sn1 over an extended period of time in a thermal environment similar to a laptop in the power on mode.
Electrovert's DwellFlex 4.0 is the first solder nozzle designed specifically with Industry 4.0 automation in mind. The patent pending design enables the length of the wave to be adjusted on-the-fly as variable board types are run through the wave.
New Upgrade — I.C.T SMT LED Flexible Pick and Place Machine M series In 2022, we have upgraded the equipment of the M series pick and place machine for SMT Production line. I.C.T M series pick and place machine is mainly used for the producti
Training Courses | | | IPC-600 Specialist (CIS)
The Certified IPC-600 Specialist (CIS) training targets quality assurance and acceptance of bare printed circuit boards.
Training Courses | | | IPC-600 Specialist (CIS)
The Certified IPC-600 Specialist (CIS) training targets quality assurance and acceptance of bare printed circuit boards.
Events Calendar | Mon Apr 23 00:00:00 EDT 2018 - Thu Apr 26 00:00:00 EDT 2018 | Shanghai, China
SMTA China East Conference 2018
SMTnet Express, June 20, 2019, Subscribers: 32,068, Companies: 10,815, Users: 24,854 Dissolution in Service of the Copper Substrate of Solder Joints Credits: Nihon Superior Co., Ltd. It is well known that during service the layer of Cu6Sn5
Technical Overview of Flex Mitigation Solutions News Forums SMT Equipment Company Directory Calendar Career Center Advertising About FREE Company Listing! Technical Overview of Flex Mitigation Solutions Flex cracks have been known
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_flex-designs_topic2623.xml
. Then Solder Mask Define the Toe & Heel (not the Side) by 0.05 mm. This will help the copper pad adhere to the flex board
| http://etasmt.com/cc?ID=te_news_bulletin,23575&url=_print
. One of the unfortunate properties of the intermetallic is that it is far more brittle than the tin-lead solder or the copper (or other metals involved
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