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prEN IEC 61189-3-720:2025

Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 3-720: Test methods for interconnection structures (circuit boards) - Transmission loss test method for high frequency multilayer circuit boards

General information

Draft
Base Documents
prEN IEC 61189-3-720:2025; 91/2081/CDV
ICS Groups
31.180 Printed circuits and boards
Directives or regulations
None
You can view draft standards in the Commenting portal🡭.

Standard history

Status
Date
Type
Name
Main
prEN IEC 61189-3-720:2025
This International Standard specifies the S Parameter test method for the internal transmission circuit of a multilayer CB(Circuit Board) for high frequency up to 50 GHz. The transmission loss test method that applies the VIPPO structure to the CB surface contributes to improving the signal loss measurement precision and signal integrity of the internal transmission circuit of the high frequency CB. And use of back-drilling with Via In Pad Plated Over(VIPPO) structure can eliminate influence of stubs on signal transmission

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Standards designation

EVSEstonian standard
ENEuropean standard (published by an CEN or CENELEC)
EN ISOInternational standard adopted as an European standard
ISOInternational Organization for Standardization’s standard
IECInternational Electrotechnical Commission’s standard
HDCENELEC’s harmonisation document
EVS-ENEuropean standard implemented in Estonia
EVS-EN ISOInternational standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IECInternational standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IECInternational electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
 
A, AMDamedment
+Aa full standard plus the amendment
/Aonly amendment
COR, ACcorrigendum
+CORa full standard plus the corrigendum
NAnational annex
+NAa full standard plus the national annex
/NAonly national annex
TStechnical specification
TRtechnical report
CWAagreement, developed by a CEN or CENELEC
prEVS-EN (etc)draft standard
 
etthe standard is in Estonian only
enthe standard is in English only
et-enthe standard is in Parallel text Estonian-English