A method for manufacturing a housing, comprising: manufacturing (101, 201) a cover body, wherein the cover body is made of shielding material and has a first surface and a second surface opposite to the first surface; characterised in that the method further comprises: defining (103, 203) at least one slot in the cover body, wherein the at least one slot has a depth less than a thickness of the cover body and has an opening in the first surface and a bottom opposite to the opening; filling (105, 205) the at least one slot with first non-shielding material; removing (107, 207) at least a portion of the cover body which is located between the bottom of the at least one slot and a portion of the second surface opposite to the bottom of the at least one slot, such that the at least one slot penetrates through the cover body in the thickness direction of the cover body; and filling the at least one slot with second non-shielding material from the second surface side after removing at least a portion of the cover body which is located between the bottom of the at least one slot and a portion of the second surface opposite to the bottom of the at least one slot. manufacturing (101, 201) a cover body, wherein the cover body is made of shielding material and has a first surface and a second surface opposite to the first surface; characterised in that the method further comprises: defining (103, 203) at least one slot in the cover body, wherein the at least one slot has a depth less than a thickness of the cover body and has an opening in the first surface and a bottom opposite to the opening; filling (105, 205) the at least one slot with first non-shielding material; removing (107, 207) at least a portion of the cover body which is located between the bottom of the at least one slot and a portion of the second surface opposite to the bottom of the at least one slot, such that the at least one slot penetrates through the cover body in the thickness direction of the cover body; and filling the at least one slot with second non-shielding material from the second surface side after removing at least a portion of the cover body which is located between the bottom of the at least one slot and a portion of the second surface opposite to the bottom of the at least one slot. defining (103, 203) at least one slot in the cover body, wherein the at least one slot has a depth less than a thickness of the cover body and has an opening in the first surface and a bottom opposite to the opening; filling (105, 205) the at least one slot with first non-shielding material; removing (107, 207) at least a portion of the cover body which is located between the bottom of the at least one slot and a portion of the second surface opposite to the bottom of the at least one slot, such that the at least one slot penetrates through the cover body in the thickness direction of the cover body; and filling the at least one slot with second non-shielding material from the second surface side after removing at least a portion of the cover body which is located between the bottom of the at least one slot and a portion of the second surface opposite to the bottom of the at least one slot.