PROBLEM TO BE SOLVED: To provide a cover member for an apparatus including a capacitance-type sensor for fingerprint authentication having a high sensing sensitivity in a large area.SOLUTION: In the cover member for an apparatus including a capacitance-type sensor 34 for fingerprint authentication, the value ε/t obtained by dividing a relative permittivity ε by a thickness t is 3000 m-1 or more and 400000 m-1 or less, the vickers hardness is 98 N/mm2 or more and 19600 N/mm2 or less, the relative permittivity is 3.0 or more, and the Youngs modulus is 2.0 GPa or more and 499 GPa.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】大面積でセンシング感度が良好な静電容量方式の指紋認証用センサを有する機材用のカバー部材を提供する。【解決手段】比誘電率εを厚さtで除した値ε/tが3000m-1以上400000m-1以下であり、ビッカース硬度が98N/mm2以上19600N/mm2以下である静電容量方式の指紋認証用センサ34を有する機材用のカバー部材であり、比誘電率が3.0以上、ヤング率が2.0GPa以上499GPaである。【選択図】図2