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Products, Services, Training, and Consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep & Sole Agent in North America for Shuttle Star BGA Rework Stations.
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Manufacturer of surface deposition and plasma surface cleaning and etching equipment offering reliable, repeatable cleaning and etching of PCBs and other materials.
New Equipment | Cleaning Agents
pH Neutral Cleaning Agent for Power Electronic Applications. VIGON® PE 180, based on the MPC® Technology (Micro Phase Cleaning), is a water-based, pH neutral cleaning agent specifically developed for the use in spray-in-air equipment. VIGON® PE 180
New Equipment | Cleaning Agents
pH neutral cleaning agent for semiconductor applications. HYDRON® SE 220 is a water-based, single-phase cleaning agent specifically developed for use in immersion and ultrasonic processes. HYDRON® SE 220 removes flux residues from a wide range of se
Electronics Forum | Thu Dec 29 10:47:05 EST 2005 | Chris
The paper Dave posted the link for is great. I have to go back and read it in depth. I can build prototypes by wirebonding to ENIG. I can do it on a manual wirebonder but I don't have the patience to do it on a magazine to magazine automatic machi
Electronics Forum | Wed Dec 28 16:03:53 EST 2005 | Chris
I have lots of experience with thermosonic gold ball bonding. You can read the literature and you will probably find some papers that say you can do it. I have never been able to do it. We gold ball bond all day long with little problems at all bu
Industry News | 2013-05-01 12:45:51.0
Held at the Rijckholt Castle and Nordson ASYMTEK European Headquarters in Maastricht
Industry News | 2017-01-19 12:58:45.0
ZESTRON will be introducing our latest PCB and power electronics defluxing agent, VIGON® PE 190A, at IPC APEX 2017.
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.
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
Dinghua Technology-- the leading manufacturer of BGA rework station, Automatic screw locking machine, Automatic soldering station and non-standard equipment. For more details, please just contact John, WhatsApp/Wechat:+86 1576811 4827 , Skype: si
Training Courses | ON DEMAND | | IPC J-STD-001 Trainer (CIT)
The Certified IPC J-STD-001 Trainer (CIT) courses prepare individuals as qualified trainers in the area of producing high quality soldered interconnections and prepares them to deliver Certified IPC J-STD-001 Specialist (CIS) training.
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
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Duties & Responsibilities (Equipment Technician): Production line support, conduct setup and troubleshooting on handled machines such as COB and backend equipment. Conduct Preventive maintenance
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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
ZESTRON Americas | https://www.zestron.com/cleaning-applications/power-electronics-packages/cleaning-power-leds.html
. These often result in heel cracks and even chip defects due to unnecessary high bonding power. A cleaning process using water based cleaning agents or modern solvents that has been specifically developed for Power LEDs provides optimal surface cleanliness for wire bonding and guarantees a higher yield
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/march/plasma-applications/pcb-manufacturing
) - Plasma treatment removes resist residue from PCB inner layers and panels without affecting the circuit pattern. It also removes residual solder mask bleed from lands for better bonding and solderability
Products, Services, Training, and Consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep & Sole Agent in North America for Shuttle Star BGA Rework Stations.
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