Space charge observation of a metal base printed wiring board during an ageing test
نویسندگان
چکیده
منابع مشابه
Optical interconnect on printed wiring board
Integration of high-speed parallel optical interconnects into printed wiring boards (PWB) is studied. The aim is a hybrid optical–electrical board including both electrical wiring and embedded polymer waveguides. Robust optical coupling between the waveguide and the emitter/detector should be achieved by the use of automated pick-and-place assembly. Different coupling schemes were analyzed by c...
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It is shown that the value of adhesion strength at the metallisation/polymer interface can be determined directly from a printed wiring board (PWB) by a pull-off method. However, careful optimisation of the test geometry is required. In particular, the mechanical properties of the substrate are important. The use of flexible substrate in the test results in severe underestimation of the adhesio...
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The trend in Printed Circuit Board Assembly (PCBA) technology is towards higher complexity. Many boards have significantly more components and solder joints today than just a few years ago. More components and more solder joints means more defect opportunities and lower yields. A higher number of components typically means higher cost for each PCBA, resulting in higher WIP cost (work in process...
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The purpose of the paper is to outline MULTI-PRIDE, a system for supporting multi-layered printed wiring board design. It consists of (i) circuit bipartition, (ii) placement and routing on each outside layer, (iii) modi cation of wiring and compaction, and (iv) routing on inside layers.
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ژورنال
عنوان ژورنال: IEEJ Transactions on Fundamentals and Materials
سال: 1998
ISSN: 0385-4205,1347-5533
DOI: 10.1541/ieejfms1990.118.1_86