Fraunhofer IPM will demonstrate HoloTop Motion, a digital holographic sensor for 3D measurement of moving surfaces, at SEMICON Europa in Munich. The institute calls it the "world's first" of its kind. Components do not have to be stopped or pulled from the production line to be measured. It will share the booth with two other inline optical systems, the F-Camera and RAPID-LIBS.
HoloTop Motion scans a surface section by section and combines the data into one continuous topographic map. Depending on the objective lens, lateral resolution is better than 2µm. Axial repeatability is under 1µm, and feed velocity can reach 1m/s. Fraunhofer IPM names wafers, interposers and ball grid arrays as target parts. For metrology engineers in semiconductor packaging, the practical change is that 3D topography checks can run at line speed instead of at a stopped measuring station.
The F-Camera targets contamination on electronic contacts. It images surfaces without contact at the pace of the production cycle. UV light makes organic substances fluoresce, which makes residues of oils, greases, cleaning agents, paints or fluxes visible and quantifiable. The system records the position, shape and extent of contaminants and defects. Fraunhofer IPM says clean surfaces matter for electrical welds, solder joints and later coating or bonding steps.
RAPID-LIBS addresses laser drilling of microvias, the holes that connect conductive layers in multilayer printed circuit boards. Layer thickness varies, so a fixed number of laser pulses cannot reliably remove the insulating material without damaging the copper beneath. RAPID-LIBS analyzes the plasma produced during ablation and reads its material-specific spectrum to identify, in real time, which material sits at the processing point. Material transitions resolve pulse by pulse and feed back to the laser controller as a control signal, so each hole is controlled individually.
All three systems measure without contact and are designed to be built into production and processing equipment. Fraunhofer IPM will show them November 10–13, 2026, in Hall C1, Booth 908.
