US Patent 11612066 Electronic device including metal housing

An electronic device includes a front plate, a back plate that faces away from the front plate, a display, a frame, a polymer member, and an adhesive layer. The display is disposed between the front plate and the back plate and visible through the front plate. The frame surrounds an interior space between the front plate and the back plate and formed of a metallic material. The frame includes a first metal part and a second metal part. The polymer member is coupled to the frame and contains a polymer material. The adhesive layer bonds the polymer member and the frame. The frame includes an opening formed in a first part thereof. The opening is formed through the first metal part and being formed to a specified depth through the second metal part. The polymer member forms at least part of an inner surface of the opening.