Industry Directory | Consultant / Service Provider / Manufacturer
Central business area is the field of test and assembly machines for pcbs, electronic components + products: automation, production lines, test systems, in-circuit, functional and eol test, test plugs
Industry Directory | Manufacturer
France's largest EMS company, ALL Circuits, designs, industrializes and manufactures high-quality electronics, assisting its customers from the design phase through to the analysis of customer field returns.
Industry News | 2015-03-24 04:15:40.0
This year my special feature area in the US, supported by SMTA & NPL, will include live printing ultra-fine pitch deposits, 0201 and 01005 devices, inspection and measurement of different combinations of pastes, plus some of the key in-process inspection steps to make a process perform correctly. It will also include AOI inspection of printed board assemblies for open joints, lifted leads, partial lifting of passives and other less common defects.
Events Calendar | Tue Dec 04 00:00:00 EST 2018 - Tue Dec 04 00:00:00 EST 2018 | ,
Qualification and Reliability of Microvias
Technical Library | 2019-11-07 08:59:14.0
Inductors realized with high permeable MnZn ferrite require, unlike iron-powder cores with an inherent dis-tributed gap, a discrete air gap in the magnetic circuit to prevent saturation of the core material and/or tune the inductance value. This large discrete gap can be divided into several partial gaps in order to reduce the air gap stray field and consequently the proximity losses in the winding. The multi-gap core, realized by stacking several thin ferrite plates and inserting a non-magnetic spacer material between the plates, however, exhibits a substan-tial increase in core losses which cannot be explained from the intrinsic properties of the ferrite. In this paper, a comprehensive overview of the scientific literature regarding machining induced core losses in ferrite, dating back to the early 1970s, is provided which suggests that the observed excess core losses could be attributed to a deterioration of ferrite properties in the surface layer of the plates caused by mechanical stress exerted during machining.
Technical Library | 2020-12-10 15:49:40.0
Electronic assemblies should have longer and longer service life. Today there are partially demanded 20 years of functional capability for electronics for automotive application. On the other hand, smaller components, such as resistors of size 0201, are able to endure an increasing number of thermal cycles until fail of solder joints, so these are tested sometimes up to 4000 cycles. But testing until the end of life is essential for the determination of failure rates and the prognosis of reliability. Such tests require a lot of time, but this is often not available in developing of new modules. A further acceleration by higher cycle temperatures is usually not possible, because the materials are already operated at the upper limit of the load. However, the duration can be shortened by the use of liquids for passive tests, which allow faster temperature changes and shorter dwell times because of better heat transfer compared to air. The question is whether such tests lead to comparable results and what failure mechanisms are becoming effective. The same goes for active temperature cycles, in which the components itself are heated from inside and the substrate remains comparatively cold. This paper describes the various accelerated temperature cycling tests, compares and evaluates the related degradation of solder joints.
Career Center | San Jose, California USA | Accounting/Finance,Engineering,Management,Sales/Marketing
www.dcsiconsultants.com. Are you looking to be paid what your worth with no cap's on commission, no hassles when it comes time to get paid, work for a global leader in the electronics manufacturing industry and have a great time doing it? We have
Career Center | Davenport, Iowa USA | Production
SURFACE MOUNT SOLDERER - COOLERS Cobham Mission Systems is seeking a Surface Mount Solderer for our Coolers Department within our Davenport, Iowa facility. This position is open due to an increase in staff. The qualified applicant will perform the
Career Center | Brooklyn, New York USA | Production
Mini-Circuits designs, manufactures and distributes integrated circuits, modules, and sub-systems for high performance radio frequency (RF) and microwave applications. With design, sales and manufacturing locations in over 30 countries, Mini-Ci
The CoaxStrip 5300 RX allows you to quickly and accurately strip wires and cables that would be virtually impossible to strip by hand, with inner conductors ranging from 0.003'' / 0.07 mm (42 AWG) up to 0.080'' / 2 mm maximum cable outer diameter (O.
