Sonix-Scanning Accostic Microscope Manual + Sonix-Realiability Engineering

truviet911 · 发表于 2011-2-14 09:01:57

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本帖最后由 truviet911 于 2011-2-14 09:04 编辑

Scanning acoustic microscopy (SAM)Scanning acoustic microscopy (SAM) is a non-destructive technique thatcan be used to image the internal features of a specimen.  SAM ishighly sensitive to the presence of delaminations, and can detectdelaminations of sub-micron thickness, which are difficult to detectusing X-ray radiography. SAM is an important tool for detecting popcorncracking/delamination, die attach voiding, evaluating flip chipunderfill integrity, and lid seal integrity in hermetically sealedpackages. Ceramic direct bond substrates may be inspected fordelamination using SAM.  This technique may also be used todetermine the thickness of an internal layer of material.
      Bothdelamination/cracking and die attach voiding are assembly relateddefects that can increase the susceptibility of components to failurein storage or use, although they may not constitute failures bythemselves. Delamination and cracking can result in sheared or liftedwirebonds, passivation cracking, metallization shifting, intermittentelectrical failures and metallization/bond pad corrosion. Die attachvoiding can lead to die cracking, die attach fracture, or thermalrunaway due to poor heat dissipation through the die attach.
      Theimages below show the thermomechanical damage on a PQFP sample inducedby solder dipping, a technique used as a tin whisker mitigationstrategy for tin rich finished parts.

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Asreceived part Solder dipped part

Very good materials. These manuals are for corporations only but I can share!!!. EETOP

Sonix-CSAM Manual.2.part01.rar (3 MB, 下载次数: 17 )

Sonix-CSAM Manual.2.part02.rar (3 MB, 下载次数: 14 )

Sonix-CSAM Manual.2.part03.rar (3 MB, 下载次数: 11 )

Sonix-CSAM Manual.2.part04.rar (3 MB, 下载次数: 11 )

Sonix-CSAM Manual.2.part05.rar (3 MB, 下载次数: 12 )

Sonix-CSAM Manual.2.part06.rar (3 MB, 下载次数: 12 )

Sonix-CSAM Manual.2.part07.rar (3 MB, 下载次数: 12 )

Sonix-CSAM Manual.2.part08.rar (3 MB, 下载次数: 12 )

Sonix-CSAM Manual.2.part09.rar (3 MB, 下载次数: 11 )