In one embodiment, the optoelectronic semiconductor device comprises a semiconductor layer sequence and an electrical via. The semiconductor layer sequence includes an active zone for generating radiation and a contact layer for electrical contacting. The active zone lies in a plane perpendicular to a main growth direction of the semiconductor layer sequence and is located between a first semiconductor region and a second semiconductor region. The contact layer is located within the second semiconductor region. The via extends through the contact layer and preferably ends within the second semiconductor region. A contact surface between the via and the contact layer encloses a contact angle of at least 20° and at most 60° with respect to the plane.