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Low Strain Rate Test - Bending Test

Description:

Bending test, either in monotonic or cyclic mode, is aimed at identifying bending degree and load strength of devices’ solder joints and material structure under external bending force.

Failure Mode: The cyclic bending test is aimed at verifying the fatigue resistance strength of product - repeated pushing and pulling actions may cause the solder balls to break. The broken area and size can be measured by dye and pry or cross-section analysis.


Scope of Application: 

ICs, PCB and PCBA boards.


Testing Images:

Bending Test



       Beam

Load Span

IC Package Width

Support Span (LS)

Fixed Support

Printed Wiring Board (PWB)

(Moveable) Anvil Radius

Board Thickness

Dye and Pry Test


Cross-section Analysis



Image of Testing Equipment:

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