Two component (also called meter mix) dispensing systems are used for mixing and dispensing two part materials, typically adhesives. The two parts of the adhesive come together in the system, typically through a static mixer, and activate to start th
With a combination of specialized processes and equipment, the boards were custom manufactured from double-sided glass-reinforced PTFE. This PCB is used for controlled impedance within a microwave application.. Utilizing advanced photolithography a
Electronics Forum | Fri Dec 17 00:55:22 EST 2010 | kemasta
Hi Kim Dun take any risk in delamination bcoz u > will be the person to answer for being it. So, > we do bake all Pcbs, which have 3months of shelf > life, b4 startin any process although they are > still inside the factory packs. We keep it in
Electronics Forum | Fri Mar 21 10:16:00 EST 2003 | O'Connor
Hi, Is there a standard that covers the shelf life of PCB's? I need to know, how long after manufacture a PCB can be stored in an uncontrolled envoirnment exposed to the atmosphere before being built on, currently we say 1 year, but nobody really kno
Industry News | 2003-03-25 08:31:07.0
On completion of the transaction, Flairis will become a wholly-owned subsidiary of Beyonics and its shares will be delisted from Sesdaq.
Industry News | 2018-02-19 13:55:53.0
IPC — Association Connecting Electronics Industries® Pb-free Electronics Risk Management (PERM) Council has developed the first single document dedicated solely to assisting design engineering in the development of electronics that are completely lead-free (Pb-free) and meet the demanding requirements of aerospace, defense and high performance (ADHP) products and systems.
Technical Library | 2023-10-23 18:56:52.0
A thin chip package for off-the-shelf ICs is developed which enables the embedding of these chips into a flexible circuit board. The package consists of a copper fan-out on a polyimide substrate, in which the thinned IC (30um) is embedded. These packages are subsequently integrated in a standard flexible circuit board (FCB). A microcontroller and a proprietary DSP processor are embedded using this technology. The yield of the Ultra-Thin Chip package (UTCP) was measured before embedding in the circuit board, and reaches up to 87% for the packaged microcontrollers (MSP430 family, known-good dies). The yield on the DSP processor was measured to be 62%. After embedding in the FCB, 95% of the functional UTCP-packaged dies are still functional.
Technical Library | 2019-12-26 19:13:52.0
Plated through hole (PTH) plays a critical role in printed circuit board (PCB) reliability. Thermal fatigue deformation of the PTH material is regarded as the primary factor affecting the lifetime of electrical devices. Numerous research efforts have focused on the failure mechanism model of PTH. However, most of the existing models were based on the one-dimensional structure hypothesis without taking the multilayered structure and external pad into consideration.In this paper, the constitutive relation of multilayered PTH is developed to establish the stress equation, and finite element analysis (FEA) is performed to locate the maximum stress and simulate the influence of the material properties. Finally, thermal cycle tests are conducted to verify the accuracy of the life prediction results. This model could be used in fatigue failure portable diagnosis and for life prediction of multilayered PCB.
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BGA Package Component Reliability After Long-Term Storage BGA Package Component Reliability After Long-Term Storage In 2008, the white paper Component Reliability After Long Term Storage was published in support of shelf life extension
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Close Search PCB for Aviation: 3 Rules for Aerospace Printed Circuit Boards By Behind the Work May 19, 2022 April 28th, 2023 Blog , Industry News No Comments PCB for aviation requires the highest degree of reliability and the lowest margin of error
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