Industry Directory | Manufacturer
SilmanTech is a One-stop solution supplier of SMT Assembly equipment in China. We offer BGA rework station, Glue dispensing robot, PCB loader/unloader, (AOI) machine, x-ray inspection SMT parts and accessories.Inbox us for more..
Industry Directory | Manufacturer
Sikama International designs, develops, manufactures and markets reflow solder furnaces/curing systems, featuring our patented conduction+convection heating and cooling technology. Our furnaces are designed for efficient use of power and gas.
New Equipment | Design Services
The manufacturing factory at ACI includes a clean room, power electronics assembly and packaging laboratory. This specialized facility aids in the development of manufacturing and assembly technologies that can exploit the advantages of advanced mat
New Equipment | Rework & Repair Equipment
BEST HotDots™ are designed to simply and cleanly attach jumper wires on a board. HotDots™ are built to survive at high temperature as both the adhesive and the polyimide material are designed to withstand wash and reflow temperatures. HotDots™ are a
Electronics Forum | Mon Mar 07 15:41:50 EST 2005 | John M
Is anyone aware of standards which would identify the clean room requirements for the wire bonding process ?
Electronics Forum | Mon Mar 07 21:37:42 EST 2005 | ABHI
It depends on your product requirements. I have seen aluminium wire bonding operations in as high as class 100K clean rooms. These are the assembly areas for calculators. The best is class 10K clean room for wire bonding. You can go upto fine pitch w
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Used SMT Equipment | Adhesive Dispensers
Asymtek Millennium 600 Epoxy Dispenser For Sale Vintage 1998 Integrated mass flow calibration system automatically compensates for changes in fluid viscosity Full temperature control of fluid delivery with closed-loop substrate heating to
Used SMT Equipment | Board Cleaners
Features & Benefits Advanced ultrasonic series 8000 generator with sweep frequency, line/load regulation, auto frequency tracking, and true variable power to assure total control of the ultrasonic cleaning • Standardised tank size of - 300 x 450
Industry News | 2003-04-30 08:51:08.0
Electrolube played the role of environmental champion in Australia recently.
Industry News | 2013-05-01 12:45:51.0
Held at the Rijckholt Castle and Nordson ASYMTEK European Headquarters in Maastricht
Parts & Supplies | Pick and Place/Feeders
SMT basic process components include: silk screen (or dispensing), placement (curing), reflow soldering, cleaning, testing, repair 1, silk screen: its role is to paste or patch solder paste printed on the PCB pad, the components f
Parts & Supplies | Pick and Place/Feeders
The definition of SMT SMT is the surface assembly technology,surface mount technology(surface mount technology)(Surface Mounted Technology abbreviation),is currently the most popular electronic assembly industry,a technology and technology. What a
Technical Library | 2020-08-27 01:22:45.0
Initially adopted internal specifications for acceptance of printed circuit boards (PCBs) used for wire bonding was that there were no nodules or scratches allowed on the wirebond pads when inspected under 20X magnification. The nodules and scratches were not defined by measurable dimensions and were considered to be unacceptable if there was any sign of a visual blemish on wire-bondable features. Analysis of the yield at a PCB manufacturer monitored monthly for over two years indicated that the target yield could not be achieved, and the main reasons for yield loss were due to nodules and scratches on the wirebonding pads. The PCB manufacturer attempted to eliminate nodules and scratches. First, a light-scrubbing step was added after electroless copper plating to remove any co-deposited fine particles that acted as a seed for nodules at the time of copper plating. Then, the electrolytic copper plating tank was emptied, fully cleaned, and filtered to eliminate the possibility of co-deposited particles in the electroplating process. Both actions greatly reduced the density of the nodules but did not fully eliminate them. Even though there was only one nodule on any wire-bonding pad, the board was still considered a reject. To reduce scratches on wirebonding pads, the PCB manufacturer utilized foam trays after routing the boards so that they did not make direct contact with other boards. This action significantly reduced the scratches on wire-bonding pads, even though some isolated scratches still appeared from time to time, which caused the boards to be rejected. Even with these significant improvements, the target yield remained unachievable. Another approach was then taken to consider if wire bonding could be successfully performed over nodules and scratches and if there was a dimensional threshold where wire bonding could be successful. A gold ball bonding process called either stand-off-stitch bonding (SSB) or ball-stitch-on-ball bonding (BSOB) was used to determine the effects of nodules and scratches on wire bonds. The dimension of nodules, including height, and the size of scratches, including width, were measured before wire bonding. Wire bonding was then performed directly on various sizes of nodules and scratches on the bonding pad, and the evaluation of wire bonds was conducted using wire pull tests before and after reliability testing. Based on the results of the wire-bonding evaluation, the internal specification for nodules and scratches for wirebondable PCBs was modified to allow nodules and scratches with a certain height and a width limitation compared to initially adopted internal specifications of no nodules and no scratches. Such an approach resulted in improved yield at the PCB manufacturer.
Technical Library | 2017-08-17 12:23:27.0
A novel epoxy flux EF-A was developed with good compatibility with no-clean solder pastes, and imparts high reliability for BGA assembly at a low cost. This compatibility with solder pastes is achieved by a well-engineered miscibility between epoxy and no-clean solder paste flux systems, and is further assured with the introduction of a venting channel. The compatibility enables a single bonding step for BGAs or CSPs, which exhibit high thermal warpage, to form a high-reliability assembly. Requirements in drop test, thermal cycling test (TCT), and SIR are all met by this epoxy flux, EF-A. The high viscosity stability at ambient temperature is another critical element in building a robust and userfriendly epoxy flux system. EF-A can be deposited with dipping, dispensing, and jetting. Its 75°C Tg facilitates good reworkability and minimizes the adverse impact of unfilled underfill material on TCT of BGA assemblies.
ACI Technologies Inc. (ACI) is a scientific research corporation dedicated to the advancement of electronics manufacturing processes and materials for The Department of Defense and industry. This video provides an overview of our commercial service
This video demonstrated the use of BEST Inc HotDots(TM) which allow wires to be affixed to the PCB or other surfaces-even when those surfaces go through reflow. There are other similar products out there but none of which can be readily customized no
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
Events Calendar | Mon Dec 11 00:00:00 EST 2017 - Thu Dec 14 00:00:00 EST 2017 | Orlando, Florida USA
CAMX
Career Center | Boulder, Colorado USA | Engineering,Production,Quality Control
Senior-level micro-electronic technician capable of independent manufacture of custom hybrids, focal plane assemblies, and prototype detector assemblies in cleanroom environment (in Advanced Packaging and Detector Laboratory). MINIMUM QUALIFICATIONS
Career Center | Lititz, Pennsylvania USA | Engineering
Provides advanced engineering expertise in support of the design, and integration of highly complex circuit card assemblies. Technical expertise should include a broad background in circuit card assembly with a strong concentration in surface mount
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
Career Center | San Isidro Cabuyao Laguna, Philippines | Engineering,Maintenance,Production,Technical Support
Duties & Responsibilities (Equipment Technician): Production line support, conduct setup and troubleshooting on handled machines such as COB and backend equipment. Conduct Preventive maintenance
SMT Express, Volume 2, Issue No. 9 - from SMTnet.com Volume 2, Issue No. 9 Thursday, September 14, 2000 Featured Article Return to Front Page Book Review Reviewed by Dave Fish (davef ), Pandion Electronics, Inc Title: Wire Bonding
SMTnet Express, August 31, 2017, Subscribers: 30,770, Companies: 10,706, Users: 23,739 NSOP Reduction for QFN RFIC Packages Mumtaz Y. Bora; Peregrine Semiconductor Wire bonded packages using conventional copper leadframe have been used in industry
| https://www.smtfactory.com/PCBA-Cleaning-Machine-PCB-Defluxing-For-Best-Coating-and-Bonding-Effect-id43566387.html
PCBA Cleaning Machine / PCB Defluxing -For Best Coating and Bonding Effect - I.C.T SMT Machine English Bahasa indonesia Сербия Česky Dansk Deutsch
| https://www.eptac.com/faqs/ask-helena-leo/ask/gold-wire-bond-failing-pull-test
: We have a situation where we have gold boards which accept gold wire bonding, but are failing a pull test. Other than making sure the boards are clean with a quick trip into the degreaser, is there any other way to refresh gold... Question
