A probe for brain recording or stimulation and a method for fabricating the same, the probe comprising one or more shanks having a same orientation, wherein each of said shanks has a first side and a second side opposed to said first side and comprises at least one recording and/or stimulating site on said first side and a fin protruding perpendicularly from said second side and running on at least a part of the length of said shank along said same orientation.
