Implants: Overlap Between Cells
Right now the validation prohibits implants that overlap with neighboring pixel cells via https://gitlab.cern.ch/allpix-squared/allpix-squared/-/blob/master/src/core/geometry/PixelDetectorModel.cpp#L46-51
However,t his is something that is very common, especially for backside implants such as columns in 3D sensors. Here, these backside contacts are placed exactly in the center between pixel cells, e.g. like in this design: 3d_hybrid.conf
This should be possible, so we need to discuss what the limitations should be.