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CT scan for semiconductor

Applications

Semiconductor.

Packages and solder joints.

Inspection tasks

See every solder joint.

Packages hide their connections under the die and the mould compound. X-ray and CT show voids, bridges and misalignment joint by joint, for the laboratory and for the line.

BGA and flip-chip joints

Voids, solder-ball shift, head-in-pillow defects and bridges are separated layer by layer. Planar CT does this on the full board, without cutting it.

Leads and bond wires

Lifted or bent leads, open joints and bond-wire defects show in the 3D volume, where a 2D image superimposes them.

Failure analysis

Micro-cracks, micro-voids and delamination are located before the cross-section is made, so the cut goes through the right place.

Scan examples

What the data shows.

3D CT rendering of solder balls
Solder balls, 3D CT rendering: shape and position of every ball.
X-ray image of a BGA with marked solder balls and a 3D CT detail
BGA, X-ray image with 3D CT detail: deformed solder balls marked.
3D CT rendering of a complete BGA ball array
BGA, 3D CT rendering of the complete ball array.

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