Industry Directory | Manufacturer
The company was founded in 2000. UL certification, prototype & mass production, urgent express delivery, excellent quality, competitive price, most of products exported to all over the world, and get highly appreciated.
Industry Directory | Manufacturer
We guarentee to lower your product cost! With over 15 years experience, we are DIRECT CONTACTS of select Asian manufacturing companies and factories from The People's Republic of China, Philippines, and Hong Kong. This select group is well-established manufacturing experts within their industries. We have long term relations with each
Gold finger PCB/Impedance computer circuit board Layer:6 Thiness: 2.0mm Surface treatment: ENIG+Hard gold plated on gold finger Impdance control: Single-ended 50ohm, differential 90 ohm Application: Computer
New Equipment | Surface Finish
Technic supplies precious metal and tin and tin alloyed products that are used to preserve as well as enhance soldering and bonding through all levels of interconnection. Technic is well established as a leader in Final Finish Solutions for printed
Electronics Forum | Wed Jul 31 18:26:09 EDT 2013 | Jeff Kennedy
You might consider to contact a lab to Run a microindenter against a know good soft gold sample. The knoop value for the soft gold will be much lower than for hard gold. This would be reflected in the diameter measurement of the indented samples.Smal
Electronics Forum | Mon May 06 12:20:09 EDT 2013 | davef
Gold in solder alloys can be brittle. We always used to talk about keeping gold LT 3% in order to avoid embrittlement. Some military contracts require removal of gold from soldered contacts. Adding gold to a solder alloy that you're familiar with wi
Industry News | 2003-02-07 09:13:12.0
The Sessions Covered Current and Emerging Technologies
Industry News | 2018-10-18 11:08:03.0
Different Techniques for Plating
Parts & Supplies | Pick and Place/Feeders
We can supply you the following UNIVERSAL Feeders. Also Feeder Parts, Feeder Storage Carts / Feeder Trolley, Feeder Calibration Jig. 49889209 8mm High Performance DL-60 (Gold Plus) 49889210 8mm High Performance DL-60 (Gold Plus) 49889211 8mm High
Parts & Supplies | Visual Inspection
We can supply you the following UNIVERSAL Feeders. Also Feeder Parts, Feeder Storage Carts / Feeder Trolley, Feeder Calibration Jig. 49889209 8mm High Performance DL-60 (Gold Plus) 49889210 8mm High Performance DL-60 (Gold Plus) 49889211 8mm High
Technical Library | 2020-08-05 18:49:32.0
The evolution of internet-enabled mobile devices has driven innovation in the manufacturing and design of technology capable of high-frequency electronic signal transfer. Among the primary factors affecting the integrity of high-frequency signals is the surface finish applied on PCB copper pads – a need commonly met through the electroless nickel immersion gold process, ENIG. However, there are well-documented limitations of ENIG due to the presence of nickel, the properties of which result in an overall reduced performance in high-frequency data transfer rate for ENIG-applied electronics, compared to bare copper. An innovation over traditional ENIG is a nickel-less approach involving a special nano-engineered barrier designed to coat copper contacts, finished with an outermost gold layer. In this paper, assemblies involving this nickel-less novel surface finish have been subjected to extended thermal exposure, then intermetallics analyses, contact/sheet resistance comparison after every reflow cycle (up to 6 reflow cycles) to assess the prevention of copper atoms diffusion into gold layer, solder ball pull and shear tests to evaluate the aging and long-term reliability of solder joints, and insertion loss testing to gauge whether this surface finish can be used for high-frequency, high density interconnect (HDI) applications.
Technical Library | 2023-01-10 20:15:42.0
Over the past years there has been consistent growth in the use of electroless nickel / immersion gold (ENIG) as a final finish. The finish is now frequently being used for PBGA, CSP, QFP and COB and more recently gathered considerable interest as a low cost under-bump metallization for flip chip bumping application. One of the largest users for this finish has been the telecommunication industry, were millions of square meters of PCBs with ENIG have been successfully used. The nickel layer offers advantages such as multiple soldering cycles and hand reworks without copper dissolution being a factor. The nickel also acts as a reinforcement to improve through-hole and blind micro via thermal integrity. In addition the nickel layer offers advantages such as co-planarity, Al-wire bondability and the use as contact surface for keypads or contact switching. Especially those pads, which are not covered by solder need a protective coating in corrosive environment – such as high humidity or pollutant gas.
we have many hitachi equipment and hitachi feeders to sell . if you want to know more , please contact us tina@smtfeeders.cn
we have many hitachi equipment and hitachi feeders to sell . if you want to know more , please contact us tina@smtfeeders.cn
Events Calendar | Wed Apr 20 00:00:00 EDT 2022 - Wed Apr 20 00:00:00 EDT 2022 | ,
Virtual Course: Selection Criteria of Surface Finish for Next Generation PCB Technologies
Career Center | Dana Point, California USA | Sales/Marketing
We are currently seeking sales reps nationwide for this rapidly growing supplier of printed circuit boards (since 1986)with facilities in southern CA and eight PCB facilities in China and Taiwan, all ISO 9002 certified and UL94V-0 approved, some are
SMTnet Express, August 7, 2014, Subscribers: 23058, Members: Companies: 13975, Users: 36604 Gold Embrittlement In Lead-Free Solder. Craig Hillman, Nathan Blattau, Joelle Arnold, Thomas Johnston, Stephanie Gulbrandsen; DfR Solutions , Julie Silk
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/march/industries/lighting-and-led?con=t&page=2
and Sales Contacts Information Request Technical Support Request Lighting & LED Products Content Your results for: Lighting & LED Plasma for Underfill Process in Flip Chip Packaging Nordson MARCH Evaluating the Effects of Plasma Treatment Prior to Conformal Coating on Electronic Assemblies to Enhance Conformity of Coverage
Imagineering, Inc. | https://www.pcbnet.com/blog/understanding-the-pcb-fabrication-process-from-design-to-delivery/
. For example, electroless nickel immersion gold (ENIG) is a common surface finish due to its long shelf life and RoHS compliance . However, it’s more expensive than other options
