CEI EN 60749-20

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CEI EN 60749-20

2010

Most Recent

Semiconductor devices – Mechanical and climatic test methods Part 20: Resistance of plastic encapsulated SMDs to the combined effect of moisture and soldering heat

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La presente norma internazionale fa parte della serie EN/IEC 60749 che riguarda i metodi di prova meccanici e climatici per i dispositivi a semiconduttore (dispositivi singoli e circuiti integrati).
La Norma in particolare descrive un metodo di prova utile per definire la resistenza all’effetto combinato dell’umidità e del calore prodotto dal processo di saldatura dei componenti a montaggio superficiale incapsulati in plastica.
Si tratta di una prova distruttiva.
La Norma è allineata alle prescrizioni della Direttiva RoHS per quanto riguarda la saldatura lead free.
In particolare la rottura della struttura e malfunzionamenti elettrici in tali componenti si verificano quando il calore della saldatura fa innalzare la pressione di vapore dell’umidità assorbita all’interno del componente durante l’immagazzinamento.
In questo metodo il componente è sottoposto a prova dopo essere stato saturato in un ambiente che simula l’assorbimento di umidità a seguito di immagazzinamento o di imballaggio con sostanze idroassorbenti.
La Norma in oggetto sostituisce completamente la Norma CEI EN 60749-20, che rimane applicabile fino al 01-09-2012.
Questa Norma viene pubblicata dal CEI nella sola lingua inglese in quanto particolarmente mirata a settori specialistici.
La presente Norma recepisce il testo originale inglese della Pubblicazione IEC.

CEI EN 60749-20
STANDARD INFO:
Standard NameCEI EN 60749-20
ScopeSemiconductor devices - Mechanical and climatic test methods Part 20: Resistance of plastic encapsulated SMDs to the combined effect of moisture and soldering heat
PublisherCEI - Comitato Elettrotecnico Italiano
LanguagesEnglish
State[ Active ]
Publication Year2010
Most recent VersionMOST RECENT
Whether to be replaced
Addendum
FILE INFO:
Edition10
File Size1 file , 1.5 MB
Number of Pages34
Published11/01/2010
This document does not provide a preview.
CEI EN 60749-20
HistoryPublisher Year

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