Industry Directory | Consultant / Service Provider / Manufacturer
SolderStar produce thermal profiler solutions for reflow soldering, selective solder machine profiling and wave solder optimization.
New Equipment | Rework & Repair Equipment
Protecting Heat Sensitive Components. Are you in need of a flexible method for shielding nearby components during the PCB rework process? Do you find yourself looking for an effective heat shielding product which can be easily modified to protect a
New Equipment | Rework & Repair Equipment
BEST HeatShield Gel™ is a thermal shield water-based gel designed to be used in the PCB rework/repair or board assembly areas in order to provide thermal protection of electronic components. It is truly a revolutionary means to protect components. It
Electronics Forum | Fri Oct 30 15:09:44 EST 1998 | ChungPark
| Dear all, | | What are your views on reworking BGA's? I mean, with the BGA going through reflow temperatures four times or more, and with a manual reballing process, wouldn't it raise up a few reliability issues? Would you consider not doing rew
Electronics Forum | Thu Jun 08 04:31:24 EDT 2006 | vasily
Hi First I think you have to analize your PCB design. Heavy weight components should be gathered on one side of PCB. As I think, if you want to reflow both sides simultaneously there might be a problem. A chance that large components will drop off
Used SMT Equipment | Pick and Place/Feeders
HS-320 series is a high-speed ,high-accuracy and high-powered insertion machine, is a new generation axial insertion machine ,combined with the function of wire-jumping insertion machine, is researched and developed independently by Hexi. Chine
Industry News | 2003-06-23 08:49:39.0
Three Organizations from the US, Europe and Japan to
Technical Library | 2023-01-17 17:27:13.0
Reflow profile has significant impact on solder joint performance because it influences wetting and microstructure of the solder joint. The degree of wetting, the microstructure (in particular the intermetallic layer), and the inherent strength of the solder all factor into the reliability of the solder joint. This paper presents experimental results on the effect of reflow profile on both 63%Sn 37%Pb (SnPb) and 96.5%Sn 3.0%Ag 0.5%Cu (SAC 305) solder joint shear force. Specifically, the effect of the reflow peak temperature and time above solder liquidus temperature are studied. Nine reflow profiles for SAC 305 and nine reflow profiles for SnPb have been developed with three levels of peak temperature (230 o C, 240 o C, and 250 o C for SAC 305; and 195 o C, 205 o C, and 215 o C for SnPb) and three levels of time above solder liquidus temperature (30 sec., 60 sec., and 90 sec.). The shear force data of four different sizes of chip resistors (1206, 0805, 0603, and 0402) are compared across the different profiles. The shear force of the resistors is measured at time 0 (right after assembly). The fracture surfaces have been studied using a scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS)
Technical Library | 2021-01-13 21:34:29.0
Package-on-Package (PoP) is a popular technology for fabricating chipsets of accelerated processing units. However, the coefficient of thermal expansion mismatch between Si chips and polymer substrates induces thermal warpage during the reflow process. As such, the reflow temperature and reliability of solder joints are critical aspects of PoP. Although Sne58Bi is a good candidate for low-temperature processes, its brittleness causes other reliability issues. In this study, an in-situ observation was performed on composite solders (CSs) made of ...
· What is the difference between SMT vacuum reflow soldering machine and ordinary reflow soldering machine? · What problems can be solved by smt vacuum reflow soldering machine? · What is the basic principle of vacuum reflow machine? · Ho
Lyra Reflow Oven is a soft soldering that realizes the mechanical and electrical connection between the solder ends of surface mount components or the pins and the printed board pads by remelting the solder paste pre-distributed on the printed board
Training Courses | | | PCB Rework and Hand Soldering Courses
The PCB rework and hand soldering courses courses cover techniques of rework and repair of PCBs, BGAs and other electronics assemblies, and teach fundamentals of soldering of electronics assemblies.
Training Courses | | | PCB Assembly Courses
The PCB assembly courses provide knowledge of different processes and equipment used in TH and SMT assembly of printed circuit boards.
Events Calendar | Tue Apr 21 00:00:00 EDT 2020 - Thu Apr 23 00:00:00 EDT 2020 | Amsterdam, Netherlands
Electronics in Harsh Environments Conference
Events Calendar | Tue Mar 06 00:00:00 EST 2018 - Tue Mar 06 00:00:00 EST 2018 | ,
Electronics in Harsh Environments Conference - Free Pre-Conference Webinar
Career Center | Van Nuys, California USA | Production
We are an ISO 9000, AS 9100, ISO 13485 and NASA certified; Quick Turn, High Reliability, Contract Manufacturer of PCB assemblies, located in the San Fernando Valley. We serve the aerospace, military, space, medical and telecommunications and other L
Career Center | Williamsport, Pennsylvania USA | Engineering,Management
PRIMUS Technologies Corporation is an electronic manufacturing services (EMS) provider that produces highly reliable products for global government and commercial markets. Our company is an integrated lean enterprise that fully embodies the Six Sigma
SMTnet Express, January 2, 2020, Subscribers: 33,306, Companies: 10,954, Users: 25,467 Temperature Cycling and Fatigue in Electronics Credits: DfR Solutions The majority of electronic failures occur due to thermally induced stresses and strains
Heller 公司 | http://hellerindustries.com.cn/Vacuum-Void-Reduction-Reflow.pdf
. Recommendations are made for further work based on other void reduction methods and additional reliability studies. Key words: Solder joint voiding, vacuum reflow processing, thermal fatigue reliability, thermal cycling, lead-free alloys
| https://pcbasupplies.com/alloy-solder-paste-enig/
. High Reliability Alloy Solder Paste SAC305 For better joint reliability In comparison with SAC305, SB6NX has better elongation property and is less prone to deformation
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