Industry Directory | Manufacturer
CSM Instruments develops, manufactures and sells instruments to characterize mechanical properties of surfaces. We have been the world leader in this market for more than 30 years.
Industry Directory | Manufacturer
As trends towards the miniaturization and increased functional integration of electronics, the demands on quality assurance are rising. FISCHER has many coating thickness measurement solutions for the electronics sector.
Thermally Managed � Heat Dissipating PCB�s (Printed Circuit Boards) By STABLCOR Corporation STABLCOR TM Printed Circuit Board Material Product Information STABLCOR Corporation has developed a new printed circuit board technology that has the followin
STABLCOR� is a Thermally Managed PCB / Substrate material technology with many benefits: High Thermal Conductivity with a product family that ranges from 100 W/m K up to 1000 W/m K Can more closely match the CTE mismatch that is common today bet
Electronics Forum | Fri Jan 14 17:09:21 EST 2005 | Bob R.
Whether or not conformal coating creates a reliability problem if it bridges the gap between the board and bottom of the part depends on the properties of the coating. A low modulus coating is fine, but one thats modulus increases at colder temperat
Electronics Forum | Fri Jun 02 15:53:51 EDT 2000 | James Burrell
I'm considering using Delmat, or some equivalent material, as a stiffener for rather large pcb, but I don't know the material properties. Specifically I'm interested in: Young's Modulus, E Poisson Ratio, nu Density, rho Strength, Thanks, Jim
Industry News | 2012-02-15 19:12:30.0
Engineered Material Systems has released its new DA-5045-2 and DA-5045-4 High Thermal Conductivity Die Attach Adhesives for attaching light emitting diodes (LEDs) and small die.
Industry News | 2013-06-24 10:34:13.0
Engineered Material Systems (EMS), debuts its CA-148 Jettable Conductive Adhesive for ribbon stringing and bussing in photovoltaic applications.
Technical Library | 2018-08-15 17:27:28.0
Smartphones and tablets require very high flexibility and severe bending performance ability of the flexible printed circuits (FPCs) to fit into their thinner and smaller body designs. In these FPCs, the extraordinary highly flexible, treated rolled-annealed (RA) copper foils have recently used instead of regular RA foil and electro deposited foils. It is very important to measure the Young's moduli of these foils predicting the mechanical properties of FPCs such as capabilities of fatigue endurance, folding, and so on. Even though the manufacturers use IPC TM-650 2.4.18.3 test method for measuring Young's modulus of copper foils over many years, where Young's modulus is calculated from the stress–strain (S–S) curve, it is quite difficult to obtain the accurate Young's modulus of metal foils by this test method.
Technical Library | 2016-10-20 18:13:34.0
Pad cratering failure has emerged due to the transition from traditional SnPb to SnAgCu alloys in soldering of printed circuit assemblies. Pb-free-compatible laminate materials in the printed circuit board tend to fracture under ball grid array pads when subjected to high strain mechanical loads. In this study, two Pb-free-compatible laminates were tested, plus one dicycure non-Pb-free-compatible as control. One set of these samples were as-received and another was subjected to five reflows. It is assumed that mechanical properties of different materials have an influence on the susceptibility of laminates to fracture. However, the pad cratering phenomenon occurs at the layer of resin between the exterior copper and the first glass in the weave. Bulk mechanical properties have not been a good indicator of pad crater susceptibility. In this study, mechanical characterization of hardness and Young’s modulus was carried out in the critical area where pad cratering occurs using nano-indentation at the surface and in a cross-section. The measurements show higher modulus and hardness in the Pb-free compatible laminates than in the dicy-cured laminate. Few changes are seen after reflow – which is known to have an effect -- indicating that these properties do not provide a complete prediction. Measurements of the copper pad showed significant material property changes after reflow.
355nm 10W /15W High-Precision CCD FPC/PCB UV Laser Cutting Machine With Perfect CAM interface, it supports the mainstream of the drilling and milling file format; man-machine interface is friendly; optical path is sealed, and it also has stable an
Career Center | Melbourne, Florida USA | Management,Production,Quality Control
Technical Skills/Abilities: � Management � Quality Assurance � Strong Troubleshooting Skills � Strategic Planning � Employee Training � Quality Assurance � Problem Resolution � Mechanical/Technical Aptitude
SMTnet Express, August 16, 2018, Subscribers: 31,259, Companies: 11,015, Users: 25,092 Reliable Young's Modulus Value of High Flexible, Treated Rolled Copper Foils Measured by Resonance Method Kazuki Kammuri, Atsushi Miki, Hiroki Takeuchi; JX
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/dage/test-types-2020/flexural-test
, particularly composites and polymers. Flexural testing is used to determine the elastic modulus and failure strain of laminates. The manufacturing process for laminates involves a number of steps that impact the mechanical properties of the final board
| https://www.eptac.com/ask/gullwing-lead-deformation/
. Secondly, reforming the leads beyond their modulus of elasticity will impact the grain structure of the basis metal, weakening or work hardening, which could cause catastrophic failures in the field
.gif)