Industry Directory | Manufacturer
Manufacturer of advanced process chemistry for plating, masking and stripping. Custom manufacturing of automated equipment for electrodeposion including; hoist systems, reel-to-reel and continuous vertical processing equipment.
Industry Directory | Manufacturer
Intrinsiq Materials manufactures a variety of electronic ink, including screen-printable, and inkjetable copper ink, a silicon ink jet, and a nickel ink jet.
New Equipment | Solder Paste Stencils
SMT Framed Stencils are laser cut solder paste stencils designed to work on SMT printing machines. These laser cut stencils are permanently glued into a frame. These framed stencils are are designed for highly repeatable continuous operation in volum
New Equipment | Solder Paste Stencils
SMT Foil Stencils are laser cut solder paste stencils designed to work on their own for hand printing or with stencil tensioning systems. These laser cut stencils do not need to be permanently glued in a frame. These so-called frameless stencils are
Electronics Forum | Thu Oct 30 21:55:13 EDT 2014 | davef
Why soldering issues? I'd guess the nickel is corroded. It is very difficult to solder to oxidized nickel. Your SAC305 would get kicked all the way down the conveyor by nickel oxide. A lack of Ni-Sn-IMC formation will confirm this dewetting . What's
Electronics Forum | Mon Oct 20 15:41:19 EDT 2008 | patrickbruneel
Josh, You can not check the bare boards for black pad unless you remove the gold plating. Like Robin said black pad is nickel oxidation/corrosion and a result from bad electroless nickel plating bath control. The only preventative action you take is
Used SMT Equipment | Soldering - Reflow
Intelligent hot air lead-free reflow Oven with six heating-zones TN360C Instruction: 1: Heating system: TN360C adopts high effective nickel-chromium heating tube with advanced technology and Long life service. The hot-air circle system wh
Industry News | 2002-04-22 08:26:03.0
Honored 22 Individuals for Their Contributions to IPC and the Electronics Industry
Industry News | 2016-09-29 20:30:17.0
IPC – Association Connecting Electronics Industries® presented Committee Leadership, Special Recognition and Distinguished Committee Service Awards on September 26 at IPC's Fall Standards Development Committee Meetings in Rosemont, Ill. The awards were presented to individuals who made significant contributions to IPC and the industry by lending their time and expertise in the development of electronics manufacturing standards.
Parts & Supplies | Board Cleaners
engine accessory ai rubber hose silicone rubber hose combusition engines Specifications high quality custom cnc machining aluminum metal part products Item high quality custom cnc machining aluminum metal part products Material Stainless Steel
Parts & Supplies | Pick and Place/Feeders
Panasonic CM212-M KXF0E1CMA00 PLUNGER BSJL4 Panasonic CM212-M N210037018AA BRACKET Panasonic CM212-M N210037017AA BRACKET Panasonic CM212-M KXFB0A3CA00 BRACKET Panasonic CM212-M N2100370
Technical Library | 2018-05-09 22:15:29.0
Creep corrosion on printed circuit boards (PCBs) is the corrosion of copper metallization and the spreading of the copper corrosion products across the PCB surfaces to the extent that they may electrically short circuit neighboring features on the PCB. The iNEMI technical subcommittee on creep corrosion has developed a flowers-of-sulfur (FOS) based test that is sufficiently well developed for consideration as an industry standard qualification test for creep corrosion. This paper will address the important question of how relative humidity affects creep corrosion. A creep corrosion tendency that is inversely proportional to relative humidity may allow data center administrators to eliminate creep corrosion simply by controlling the relative humidity in the data center,thus, avoiding the high cost of gas-phase filtration of gaseous contamination. The creep corrosion relative humidity dependence will be studied using a modified version of the iNEMI FOS test chamber. The design modification allows the achievement of relative humidity as low as 15% in the presence of the chlorine-releasing bleach aqueous solution. The paper will report on the dependence of creep corrosion on humidity in the 15 to 80% relative humidity range by testing ENIG (gold on electroless nickel), ImAg (immersion silver) and OSP (organic surface preservative) finished PCBs, soldered with organic acid flux.
Technical Library | 2020-10-27 02:07:31.0
For companies that choose to take the Pb-free exemption under the European Union's RoHS Directive and continue to manufacture tin-lead (Sn-Pb) electronic products, there is a growing concern about the lack of Sn-Pb ball grid array (BGA) components. Many companies are compelled to use the Pb-free Sn-Ag-Cu (SAC) BGA components in a Sn-Pb process, for which the assembly process and solder joint reliability have not yet been fully characterized. A careful experimental investigation was undertaken to evaluate the reliability of solder joints of SAC BGA components formed using Sn-Pb solder paste. This evaluation specifically looked at the impact of package size, solder ball volume, printed circuit board (PCB) surface finish, time above liquidus and peak temperature on reliability. Four different BGA package sizes (ranging from 8 to 45 mm2) were selected with ball-to-ball pitch size ranging from 0.5mm to 1.27mm. Two different PCB finishes were used: electroless nickel immersion gold (ENIG) and organic solderability preservative (OSP) on copper. Four different profiles were developed with the maximum peak temperatures of 210oC and 215oC and time above liquidus ranging from 60 to 120 seconds using Sn-Pb paste. One profile was generated for a lead-free control. A total of 60 boards were assembled. Some of the boards were subjected to an as assembled analysis while others were subjected to an accelerated thermal cycling (ATC) test in the temperature range of -40oC to 125oC for a maximum of 3500 cycles in accordance with IPC 9701A standard. Weibull plots were created and failure analysis performed. Analysis of as-assembled solder joints revealed that for a time above liquidus of 120 seconds and below, the degree of mixing between the BGA SAC ball alloy and the Sn-Pb solder paste was less than 100 percent for packages with a ball pitch of 0.8mm or greater. Depending on package size, the peak reflow temperature was observed to have a significant impact on the solder joint microstructural homogeneity. The influence of reflow process parameters on solder joint reliability was clearly manifested in the Weibull plots. This paper provides a discussion of the impact of various profiles' characteristics on the extent of mixing between SAC and Sn-Pb solder alloys and the associated thermal cyclic fatigue performance.
This is video shows how to print a PCB using a prototype foil only stencil. The SMT prototype stencil (www.soldertools.net) is made from a high nickel content material able to offer repeatable high precision apertures. The steps of alignment, printin
This is video shows how to print a PCB using a prototype foil only stencil. The SMT prototype stencil (www.soldertools.net) is made from a high nickel content material able to offer repeatable high precision apertures. The steps of alignment, printin
SMTnet Express, March 26, 2015, Subscribers: 22,542, Members: Companies: 14,271 , Users: 37,963 Effectiveness of Conformal Coat to Prevent Corrosion of Nickel-palladium-gold-finished Terminals Michael Osterman; Center for Advanced Life Cycle
| https://www.smtfactory.com/Consumables-pl3091858.html
Handling Machine Loader & Unloader Conveyor Traffic Controller Buffer Vision Inspection Equipment AOI / Automatic Optical Inspection SPI / Solder Paste Inspection AXI / Automatic X-Ray Inspection SMT Inspection Machine PCB
Imagineering, Inc. | https://www.pcbnet.com/blog/how-pcbs-are-made/
you’ve ever wondered about the creation process behind these modern marvels you see on your computer, your tablet, and, of course, inside that clear Nintendo-64 controller from your childhood
