Please note that JavaScript and style sheet are used in this website,
Due to unadaptability of the style sheet with the browser used in your computer, pages may not look as original.
Even in such a case, however, the contents can be used safely.
Japanese
EMIStream is an EMI suppression support tool developed by NEC that can decrease undesirable EMI generated from PCB at an early design stage. EMI Design Rule Check scans your board against 13 rules and lists errors in order of priority allowing time efficient noise countermeasures. Power Plane Resonance Analysis shows you the hot spots on the board enabling optimized capacitor placement to reduce resonance.
EMIStream is an application for PCB designer which allows designers to
eliminate component floor planning at initial design stage by executing EMI rule
check and plane resonance analysis in order to suppress undesirable EMI when PCB
operating.
In resent years, widespread use of flat screen TV and complex
mobile terminal equipment, and the regulation for undesirable EMI has been
tightened.
EMI suppression measurement is the unavoidable problem in order to
system improvement.
EMIStream
was developed by engineers of NEC who were facing EMI problems with their
products and researches. EMIStream is a result of research and development by
these engineers seeking a solution for their real world EMI problems.
Over
150 rules were investigated and boiled them down to 13 critical rules.
EMI
is easily to increase if the resonance occurs between the power and ground
plane. The power and ground plane resonance analysis function takes into account
plane shapes, and capacitors, and distance between the power/ground planes to
analyze resonance based on the PEEC (Partial Element Equivalent Circuit) method.
The
power voltage drops relevant to advanced semiconductor technologies has been
increasing, and countermeasures for suppressing undesirable electromagnetic wave
caused by IC malfunction has been gained the attention of engineers.
This
function allows you to verify capacitor location, number of pieces and
capacitance value in order to suppress this problem, and provide EMI/PI
co-design solution.
＊EMIStream and PIStream are either registered trademarks or trademarks of NEC Informatec Systems, Inc. in the United States and/or other countries.
