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PCB Global is a dedicated Prototype Quick Turn High Tech. PCB supplier - Quotes and orders can be processed 24/7/365 - free online quotation visit www.pcbglobal.com
New Equipment | Solder Materials
A variety of printed circuit boards require protection of selected board areas during the Surface Finish or Assembly Process. A wide range of PEELABLE SOLDER MASKS, the SD 295X Series including the popular SD 2954 and SD 2955 provide such protection
New Equipment | Assembly Services
25.0 um (>1mil) 6Max. Board Size: (580mm×1200mm) 7Min. Drilled Hole Size:4mil(0.1mm) 8Min. Line Width:3mil (0.075mm) 9Min. Line Spacing:3mil (0.075mm) 10Surface finishing:HASL / HASL lead free, HAL, Chemical tin, Chemical Gold, Immersion Silver/
Electronics Forum | Fri Jul 27 10:07:18 EDT 2007 | rgduval
Our preference has been ENIG. We find that we achieve higher quality (visually) soldering for through hole and surface mount parts, with less handling issues than when we use white-tin, or immersion tin. We are about to do a test on some boards tha
Electronics Forum | Thu Oct 05 15:58:16 EDT 2006 | RusH
Mario, Thanks for your response. We are building a leaded assembly with hot air leveled Sn/Pb pads on the PCB. In one case the component is a 7.5X5.2X1.8 wire wound ferrite inductor with Au/Sn leads. The second component is an 0808 Tantalum cap,
Industry News | 2018-10-18 10:16:53.0
Solder Tinned Pads vs Gold Plated Pads - The Importance of Selecting the Proper Surface Finish
Industry News | 2018-10-18 10:25:53.0
Marking Diode Poles on Silkscreen Layer
Technical Library | 2014-01-30 18:08:04.0
As of today, the electronic industry is aware of the requirements for their products to be lead free. All components are typically available in lead free quality. This comprises packages like BGAs with BGA solder balls to PCB board finishes like HASL. The suppliers are providing everything that is needed. It is harder to get the old tin leaded (SnPb) components for new applications today, than lead free ones. So why has not everybody changed over fully yet and how can the challenges be overcome? A big concern in this transition process is reflow soldering. The process temperatures for lead free applications became much higher. Related with this is more stress for all the components. It affects the quality and reliability of the electronic units and products...
Technical Library | 2021-10-20 18:21:06.0
The solderability of the SAC305 alloy in contact with printed circuit boards (PCB) having different surface finishes was examined using the wetting balance method. The study was performed at a temperature of 260 _C on three types of PCBs covered with (1) hot air solder leveling (HASL LF), (2) electroless nickel immersion gold (ENIG), and (3) organic surface protectant (OSP), organic finish, all on Cu substrates and two types of fluxes (EF2202 and RF800). The results showed that the PCB substrate surface finish has a strong effect on the value of both the wetting time t0 and the contact angle h. The shortest wetting time was noted for the OSP finish (t0 = 0.6 s with EF2202 flux and t0 = 0.98 s with RF800 flux), while the ENIG finish showed the longest wetting time (t0 = 1.36 s with EF2202 flux and t0 = 1.55 s with RF800 flux). The h values calculated from the wetting balance tests were as follows: the lowest h of 45_ was formed on HASL LF (EF2202 flux), the highest h of 63_ was noted on the OSP finish, while on the ENIG finish, it was 58_ (EF2202 flux). After the solderability tests, the interface characterization of cross-sectional samples was performed by means of scanning electron microscopy coupled with energy dispersive spectroscopy.
Career Center | Rochester, New York USA | Engineering
I have done my undergraduate studies in Mechanical Engineering. I am pursuing my Master's Program in Electronics Packaging. I am currently working as a Research Assistant for RIT-CEMA (Center for Electronics Manufacturing and Assembly). My research
Career Center | Shen Zhen, China | Management,Sales/Marketing
Working in GLORYPCB for 10 years.knowing electronic supply chain very well. especially for PCB PCBA assembly and other Electronic Manufacturing Service.Glorypcb is a professional electronic manufacturer located in Shenzhen with three facilities.offe
HASL - WHAT A HASSLE, or HASL'd AGAIN. If you don't see the images, please visit online version at #Application.SmtNet.baseURL#/express/ Featured Article HASL - WHAT A HASSLE, or HASL'd AGAIN. Proof Of Design MoonMan This article updates
SMT Express, Issue No. 5 - from SMTnet.com Volume 1, Issue No. 5 Wednesday, October 13, 1999 Featured Article Return to Front Page HASL WHAT A HASSLE, or HASL'd AGAINby Earl Moon INTRODUCTION This article updates one I wrote for Printed
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Blackfox Training Institute, LLC | https://www.blackfox.com/should-you-use-lead-or-lead-free-solder/
. Compared to leaded solders, lead-free solder has a much higher melting point, sitting around 422 degrees Fahrenheit. Due to lead toxicity, many European and Asian countries have either banned or restricted the use of lead in the manufacture of consumer electronics
Products, services, training & consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep, Distributor & Service Provider for Seamark/Zhuomao and Shuttle Star BGA Rework Stations.
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