Industry Directory | Manufacturer
Rommtech-3S is your partner for reliable and cost effective contract manufacturing!have more than 15 years experience in the production of electronic and electromechanical devices � security products, radiators; cash registers manufacturing; igniters
New Equipment | Solder Materials
As the world's leading developer of advanced solder paste materials, Henkel delivers decades of technology and expertise for optimized process performance. With ground breaking new formulations to provide an easy transition to lead-free as well as pr
New Equipment | Solder Materials
Alpha® offers a full line of technologically advanced solder pastes developed to provide high throughput and yield, and lowest cost of ownership for a wide range of applications. Our offering includes leading lead-free, no-clean, halogen-free solder
Electronics Forum | Fri Jul 10 07:34:00 EDT 2020 | elijah
From the poor bonding strength of the board, the surface quality problems of the board are divided into: 1. The cleanliness of the board surface; 2. The problem of micro graphite (or surface energy) on the surface. PCB circuit board proofing Youke bo
Electronics Forum | Fri Sep 13 14:33:32 EDT 2002 | Simon
Thanks to all of you. This is very kind. I'll have a good poke around the circuit board for loose / hot components - good tips. I think it might be a throw away job, but I thought I'd give it a last try. You guys have actually given me much more
Industry News | 2003-05-29 08:30:31.0
Losses halved in the first half year � New organization of electronics group next on the agenda
Industry News | 2003-02-05 08:29:10.0
In Hopes of Convincing Legislators that there�s Still Time to Resuscitate the State PCB Industry
Technical Library | 2010-03-23 11:50:22.0
This document discuss how to design SMT stencil base on IPC-7525. Introduction: PCBA (Printed Circuit Board Assembly) is a segment of printed circuit board technology. This segment of printed circuit board industry is concentrated in assemble all the pieces of electronic industry to one piece before output them to market. This segment covers: interconnection technology, package design technology, system integration technology, board and system test technology
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.
https://www.ascen.ltd/Products/Automatic_SMT_equipment/PCB_conveyor/100.html PCB linking conveyor and PCB belt conveyor mainly used to connect different type PCB board handing equipment effectively for the SMT production line. ASCEN technology is ava
https://www.ascen.ltd/Products/Automatic_SMT_equipment/PCB_conveyor/100.html PCB linking conveyor and PCB belt conveyor mainly used to connect different type PCB board handing equipment effectively for the SMT production line. ASCEN technology is ava
be an optimal alloying addition in lead-free SAC (
Effect of Soldering Parameters on Reaction Kinetics and Phase Transformations of SAC 305 Solder Effect of Soldering Parameters on Reaction Kinetics and Phase Transformations of SAC 305 Solder As technology becomes increasingly reliant
| https://www.eptac.com/webinars/boards-get-the-bare-facts-on-bare-boards/
“Acceptability of Electronic Assemblies” which covers the accept/reject criteria for stuffed printed circuit boards, but you may not be aware that there are other standards that help you deal with issues relative to bare printed boards
ASCEN Technology | https://www.ascen.ltd/Video_Channel/PCB_depaneling_machine/785.html
Depaneling machine for separation PCB circuit boards -PCB magazine loader,PCB turn conveyor,pcb conformal coating machine,PCB router,PCB depaneling machine,pcb buffer conveyor from ASCEN technology
Manufacturer of PCB depaneling and PCB soldering machines since 2005, products include CE approval V-groove PCB depanelizer, PCB router, PCB punching machine, laser depaneling, hot bar soldering machines and soldering robots.
Liwu Industrial Park, Yuanzhou Town, Boluo
Huizhou, 30 China
Phone: +86-138-29839112
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