HSpeedDIC impact/drop surface deformation

Dantec Dynamics · Engineering measurement and characterization

Purpose: Compare board and fixture response during drop or impact loading.
Technical approach: HSpeedDIC uses high-speed cameras, calibration and image correlation to obtain visible-surface 3D displacement and strain.
Scope of use: Consider transient tests with continuously visible surface patterns and suitable exposure, field of view and synchronization.
Limitations and open questions: These evaluation considerations are compiled by BLNKK from public information. They are not supplier guarantees or a mandatory submission checklist.
Scope and limitations
Surface DIC neither sees buried pad fractures nor measures electrical continuity. A strain concentration alone does not locate BGA failure.
What to prepare
BLNKK suggests preparing board, fixture, drop and observation-area details, with visible speckles and synchronized independent electrical/failure checks.
Confirm with the supplier
Confirm cameras/lenses, spatial and temporal resolution at the required field of view, calibration, triggering and pattern visibility throughout the event.
Public evidence: Dantec documents impact/drop applications, a typical two-camera configuration and the optical correlation/triangulation principles.

Supporting references

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