[EMC]A Web Based Training System

Abstract ;-+q*@sa]  
,Today, the design of IC, subsystems and zx3gz7>k;  
systems dealing with electromagnetic problems qN $t_  
(EMC) is often based on insufficient data and on =dmr
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assumptions of design constraints. Oynb"T&8  
The term EMC (Electromagnetic Compatibility) *MP.YI:h  
includes , as generally might be known, all |'Fe?~P`  
actions intended to eliminate electromagnetic bGPE0}b  
interference in electronic systems. Growing '<R>cN"  
complexity, denser design and higher clock rates *doNPp)m  
all lead to a substantial increase in EMC #Wk=y?sn  
problems and design time. <$A,Ex94  
EMC is not commonly accepted in microelectronic eU[g@Pq:Y  
design. Microelectronic designers have i[v4[C=WB!  
the opinion that EMC has to do with electrical and 2cR[~\_9.  
electronic systems and mandatory product CM;b_E)9)f  
regulations instead of requirements to the -U d^\Yy  
integrated circuit they are designing. P{TJ$  
Therefore, design under EMC-constraints is a big O>~,R
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challenge and requires highly skilled engineek. EB~]6.1  
The high processing speeds and integration ZJYn[\]  
densities lead to effects like reflections, crosstalk M:S-%aQ_<y  
on transmission lines, delta-l-noise (ground Cn{Hk)6  
bounce, simultaneous switching, current spike) Vy\Vpp  
as well as to electromagnetic radiation and gcJ!_KZK  
irradiation, which have to be considered when Zxa.x?:?n  
applying microelectronic components. Due to the NRi5 Vp2=  
package complexity of systems and components 'nmA!s  
not all EMC-effects can be observed during the %rzPh<>e  
development process by measurement. `o[l%I\Q  
Furthermore, measurement techniques for EMC lQn" 6o1  
analysis are greatly limited by engineering and ?=VvFfv%  
financial constraints. Besides, the consideration XKoY!Y\  
of international and national standards, of legal RkF#NCnL;  
and company internal requirements, considering Yj%]|E-  
EMC-constraints in the development of electronic *
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products becomes vital for quality and time to J|`0GDSn  
market. Due to the complexity of the basic 3k Ci5C  
physical theory and the transformation into Q7BbST+  
design methods and tools there is a lack of :xd;=;q5  
practical training material which is accepted by i5'&u:  
industry. I;(3)^QH#  
In this contribution a problem specific net based b;k
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training system applied to signal integrity analysis BVQy@:K/  
on printed circuit boards will be introduced and d1b]+AG4  
presented. The training system gains its $></%S2g  
particular relevance within t .. =Zd(<&B K  
J:xGEa t  

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这种形式很好，先发摘要