Industry News | 2016-05-31 20:58:06.0
SHENMAO Features a new Sn-3.0Ag-0.5Cu Lead-Free Solder Paste PF606-P133H for laser soldering applications. Dispensed from syringes, it is developed for automatic laser soldering processes in the packaging and assembly of surface mount devices and microelectronics. Laser energy is applied at the precise location in a non-contact procedure to create high shear strength well-formed solder joints during the lower thermal stress process while reducing intermetallic formation. PF606-P133H solder paste produces minimal flux residue and no-splash or solder balling issues. It is well suited for high yield soldering of sensitive electronic components in manufacturing or repair of electronic devices that can-not tolerate conventional reflow-oven temperature.
Technical Library | 2020-10-14 14:33:36.0
Epoxy based adhesives are prevalent interface materials for all levels of electronic packaging. One reason for their widespread success is their ability to accept fillers. Fillers allow the adhesive formulator to tailor the electrical and thermal properties of a given epoxy. Silver flake allow the adhesive to be both electrically conductive and thermally conductive. For potting applications, heat sinking, and general encapsulation where high electrical isolation is required, aluminum oxide has been the filler of choice. Today, advanced Boron Nitride filled epoxies challenge alternative thermal interface materials like silicones, greases, tapes, or pads. The paper discusses key attributes for designing and formulating advanced thermally conductive epoxies. Comparisons to other common fillers used in packaging are made. The filler size, shape and distribution, as well as concentration in the resin, will determine the adhesive viscosity and rheology. Correlation's between Thermal Resistance calculations and adhesive viscosity are made. Examples are shown that determination of thermal conductivity values in "bulk" form, do not translate into actual package thermal resistance. Four commercially available thermally conductive adhesives were obtained for the study. Adhesives were screened by shear strength measurements, Thermal Cycling ( -55 °C to 125 °C ) Resistance, and damp heat ( 85 °C / 85 %RH ) resistance. The results indicate that low modulus Boron Nitride filled epoxies are superior in formulation and design. Careful selection of stress relief agents, filler morphology, and concentration levels are critical choices the skilled formulator must make. The advantages and limitations of each are discussed and demonstrated.
Industry News | 2024-03-18 12:13:13.0
Heraeus Electronics is excited to announce its participation in the upcoming 2024 IPC APEX EXPO. The event is scheduled to take place from April 9-11, 2024 at the Anaheim Convention Center in California. Heraeus Electronics will be exhibiting in Booth 3912, showcasing its cutting-edge products, including the award-winning Microbond® SMT660 Innolot® 2.0 solder paste.
Technical Library | 2007-03-08 19:31:10.0
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.
Technical Library | 2008-04-08 17:42:27.0
Concern about the failure of lead-free BGA packages when portable devices such as cell phones are accidentally dropped and a general concern about the resistance of these packages under shock loading has prompted an interest in the impact strength of the soldered BGA connection. This paper reports the results of the measurement of the impact strength of lead-free 0.5±0.01mm diameter BGA spheres on 0.42mm solder mask defined pads on copper/OSP and ENIG substrates using recently developed equipment that can load individual BGA spheres at high strain rates in shear and tension.
Model WDD, WDW，WDW-S, WDW-E, WDW-D Series Computer Control Electromechanical Universal Testing Machine Applications Computer Control Electromechanical Testing Machines are designed and manufactured according to ASTM, ISO, DIN, GB etc standards. I
Industry News | 2010-06-04 17:36:28.0
DENVER — Krayden, Inc., a leading distributor of engineered materials, introduces the Permabond TA459 magnet adhesive that is non-corrosive to electrically conductive surfaces including copper.
Industry News | 2011-01-26 20:33:39.0
Christopher Associates announced today the introduction of Koki’s S01X7C48-M500 High-Reliability Low-Ag Lead-Free Solder Paste. In response to the rise in the cost of metal, particularly silver, Koki has developed a lower cost alternative.
The Henkel line of adhesives includes high temperature electrically conductive epoxy products for every customer’s needs. As the leader in thermal film formulation technology, Henkel has developed a wide variety of film materials for multiple appli
Industry News | 2023-01-23 18:38:38.0
Heraeus Electronics returns to NEPCON Japan after two years of the pandemic. At the exhibition, which is scheduled to take place January 25-27, 2023, at The Tokyo Big Sight, Heraeus Electronics will bring a wide range of innovative materials to enhance power module and semiconductor device performance.
