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 | 2023-08-16 18:09:06.0
One of our customers involved with Electronics and Aerostructures requested a test to dispense Techspray Wondermask 2204 solder mask. The dispensing locations include large and small screw holes, single through-hole vias, and connector locations consisting of multiple through-hole vias. The process needed to run quickly and reliably.
Industry News | 2016-07-16 13:32:29.0
Advanced dispense technology is available for integration into your dispensing system. Continuously Volumetric, drip-and-drool free dispense technology can now be retrofitted into your dispense robot. GPD Global's Volumetric PCD pumps ensure the success of applications like underfill, LED encapsulation, solder mask, silicones, conductive ink, conformal coatings, and more. Improve your throughput and yields by retrofitting a Volumetric PCD Pump into your dispense system to simplify the dispense process.
http://www.gpd-global.com No drip no drool across a wide range of fluid viscosities (low-to-mid and low-to-high). No manual adjustment to compensate for pump variability. Truly Volumetric PCD Pumps for total control of dispensing fluids. Ability to
Retrofit existing system with Innovative Dispensing Technology for Excellent Dispense Control and Repeatability Advanced pump technologies available for retrofitting include: True Volumetric Pump, Precision Auger Pump, Simplified Jetting Pump and Ti
High Precision Dispensers - MAX Series (Non-Heated) Max Series is capable of a wide variety of dispense applications including MicroVolume, Solder Paste and Conductive Adhesive, Underfill, Surface Mount Adhesive, Dam and Fill, Encapsulations, LED En
High Precision Dispensers - MAX Series (Non-Heated) Max Series is capable of a wide variety of dispense applications including MicroVolume, Solder Paste and Conductive Adhesive, Underfill, Surface Mount Adhesive, Dam and Fill, Encapsulations, LED En
Industry News | 2016-12-09 23:33:42.0
GPD Global offers advanced dispense pump technologies to upgrade your existing platform and take advantage of existing capital equipment. Retrofit your system with innovative dispensing technology for excellent dispense control and repeatability.
Industry News | 2003-05-19 10:06:43.0
The PCB is available with a maximum panel size of 406-by-460mm and a minimum board thickness of 0.8mm.
Industry News | 2003-02-13 08:11:45.0
eSight Can Reduce Time-to-manufacture and Time-to-market by as Much as 80%
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