High Tech, Quick Turn, Manufacturer of PCB's up to 44 layer count. Specializing in Prototype and R&D. Mil-Spec 31032 & 55110 Certified. Located in Fremont, CA & Amesbury, MA.
TianHao company offer a full range of fluid dispensing equipment and consumable that provide the quality results you demand. and Complete robotic dispensing solutions and high precision systems.
The DV-7000 Heli-Flow® pump is a third-generation encoded auger pump. The pump has a floating head for use with footed needles to make fast, repeatable dots of solder paste and silver epoxy. The dispense gap is mechanically controlled by the needle,
4 hours Thin Film Set Time (.001" @ 25°C) >12 hours Total % NV Solids 100% Hegman Gauge Volume Resi
Electronics Forum | Thu Aug 12 20:32:44 EDT 2004 | usdigital
Indy, We use Palladium silver surface finish parts for silver epoxy attached parts only. It is our understanding that this finish is not for solder, but only silver epoxy attach. I expect that is you problem. Dave
Electronics Forum | Thu Apr 29 18:48:11 EDT 1999 | Kiet Dang
Hi, Did anyone experience a problem with electrically conductive silver filled epoxy is resistive due to galvanic reaction? I'm having this problem when attaching components to Ni plated housing while conducting an experiment to cost reduction for Au
Used SMT Equipment | Adhesive Dispensers
Features 1. Uses the high accuracy timing control electric circuit to guarantee dispensing evenly. 2. .Have vacuum Suck-back ensures no dripping. 3. Operation simple, Adjustment and replacement mold is easily. 4. Based on the size of oval
Industry News | 2010-12-07 14:53:07.0
GPD Global announces that its Positive Cavity Displacement (PCD) technology is proven with silver-filled electrically and thermally conductive adhesives.
Industry News | 2011-04-22 21:36:56.0
GPD Global announces that its MAX Series Dispensing Systems are the dispensers of choice for high accuracy and repeatability applications.
Technical Library | 1999-07-21 09:00:55.0
Isotropic conductive adhesives are typically silver filled epoxy resins. Electronics assemblers have evaluated these materials for a variety of unique interconnect applications. The goal is a conductive polymer that exhibits similar reliability and performance to traditional solder while offering the benefits of a polymer structure such as low temperature processing and good thermal stability as well as the ability to bond a variety of substrates.
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.
More Product Information: EN: http://www.essemtec.com/en/products/dispensing/tarantula/ DE: http://www.essemtec.com/produkte/smt-dosieren/tarantula/ Introducing - The Tarantula - State of the art technology, easily integrated in any line. Wide range
Events Calendar | Mon Apr 23 00:00:00 EDT 2018 - Thu Apr 26 00:00:00 EDT 2018 | Shanghai, China
SMTA China East Conference 2018
1st Place Machinery Inc. | http://www.firstplacemachinery.com/firstplace_asymtek_1010_dispenser.html
Jets a wide range of fluids including underfill, SMA, encapsulants, conformal coating, UV adhesives and silver epoxy Fast - jetting eliminates z-axis motion Accurate - jetting is highly repeatable
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_via-guidance-request-from-tim-c_topic538.xml
;If you do not mention the plug fill material in your fabrication notes, LPI solder mask is the default. But if you have high current you should probably request Dupont Silver Epoxy
