Industry Directory | Manufacturer
ZK Electronic Technology Co., Limited Headquarters are located in Shenzhen,China,which is 20 minutes to Shenzhen Airport.ZK was established in 2005,highly professional in Surface-Mount Technology area
Industry Directory | Manufacturer
ZK Electronic Technology Co., Limited Headquarters are located in Shenzhen,China,which is 20 minutes to Shenzhen Airport.ZK was established in 2005,we have two categories.
Tungsten Sheet,Plate,Boat,Cake,Alloy,Ball,Bar,Foil,Rod Alloy Sheet Foil Bar Wire W1 0.5-8.0 0.03-0.5 ��f2.0 f0.05-2.0 CW1 0.5-8.0 0.05-0.5 f2.0-5.0 f0.12-1.8 W2 0.5-8.0 0.05-0.5 ��f2.0 f0.12-1.8 WAl1 f2.8-11.0 f0.12-1.8
New Equipment | Cleaning Equipment
Stencil Wiping Rolls are used to remove residual solder paste from the bottom side of PC Board stencils. Using Stencil Wiping Rolls prevents smearing, bridging, and solder balls caused by normal printing of solder paste onto PC Boards. We manufactur
Electronics Forum | Thu Oct 25 20:15:23 EDT 2007 | wayne_
should have provide the link for all of you to look at it.... http://techon.nikkeibp.co.jp/article/HONSHI/20070926/139719/ to look at the real case study......:)
Electronics Forum | Mon Jul 28 06:13:35 EDT 2008 | cobar
Your problem is being caused by to much paste being printed.Reduce apeture size on stencil. http://www.shanelo.co.za/technical_paper_about_stencil_de.htm or http://www.shanelo.co.za/SMD%20Assist.htm
Industry News | 2012-01-23 00:02:12.0
MIRTEC, “The Global Leader in Inspection Technology”, will premier its complete line of 3D AOI, SPI, X-ray and LED inspection systems at the IPC APEX Expo in booth #3637.
Industry News | 2021-03-12 04:51:01.0
In recognition of their significant contributions of time, talent and ongoing leadership in IPC and the electronics industry, Yusaku Kono of Japan UNIX, and JonVermillion, Ball Aerospace and Technologies, were presented with IPC President's Awards at IPC APEX EXPO on March 9.
Parts & Supplies | Pick and Place/Feeders
FUJI NXT H01 head Filter XH00100 XH00560 SMT Spare Parts Original New 100% tested FUJI NXT H01 head Filter XH00100 XH00560 Usage:FUJI SMT machine Quality:100% Tested Brand Name:FUJI Type:SMT machine parts Condition:Original new More parts
Parts & Supplies | Pick and Place/Feeders
N510029538AA CM402 Cutter solenoid valve original new Brand: Panasonic Part number: N510029538AA Part name:Cutter solenoid valve Condition: original new ZK Electronic Technology Co., Limited Headquarters are located in Shenzhen,China,which
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.
03064241-01 toothed belt / 296-5M-25 HTD toothing 03064243-01 toothed belt 10T5-740 endless 03064276-01 sensor pushbutton /WTB4-3P3162 3p. Cable 03064301-01 toothed belt / 10T5-280 03064481-01 BALL BEARING 6000-2Z 030652
02100299-01 MHS LIMIT SWITCH SUITABLE *S=303932 02100335-01 MOLYKOTE LUBRICATING GREASE 250 G CAN 02100348-01 *SUBSTITUTE=00300617 PUSHER NEEDLE F.12/ 02100393-01 WATCHMAKER'S OIL 5 ML 02100423-01 *SUSTITUTE=00325534-01 VACUUMS.HONEYWELL 0210
SMTnet Express, December 7, 2016, Subscribers: 27,507, Companies: 15,035, Users: 41,441 Understanding the Effect of Process Changes and Flux Chemistry on Mid-Chip Solder Balling Katherine Wilkerson, Ian J. Wilding, Michael Carter, Daniel Buckland
KingFei SMT Tech | https://www.smtspare-parts.com/sale-13503255-n510011382aa-ball-bearing-8nh-kxf02g7aa00-for-panasonic-cm602-ball-spine.html
N510011382AA Ball Bearing 8NH KXF02G7AA00 For Panasonic CM602 Ball Spine Leave a Message We will call you back soon! Your message must be between 20-3,000 characters
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N510068432AA SMT Machine Panasonic NPM H16 Ball Spline Leave a Message We will call you back soon! Your message must be between 20-3,000 characters