To provide a method for improving a recognition rate of an alignment mark stamped on a needle-like body device.SOLUTION: A needle-like body device 1 having a needle-like protrusion 2 on a substrate includes a mark 4 for alignment in a peripheral part 3 with no protrusion 2, and the mark 4 and its peripheral part have different surface roughnesses. The mark 4 may be of a recessed shape which is more recessed than its peripheral part, or may be of a protruded shape which is more protruded than its peripheral part. The surface roughness of the mark 4 may be coarser than the surface roughness of the peripheral part of the mark 4. The surface roughness of the peripheral part of the mark 4 may be coarser than the surface roughness of the mark 4.SELECTED DRAWING: Figure 1【課題】針状体デバイスに刻印されたアライメントマークの認識率を向上させるための方法を提供する。【解決手段】基板上に針状の突起部２を備えた針状体デバイス１であって、前記針状体デバイス１は前記突起部２の無い周縁部３にアライメントのためのマーク４を有し、かつ、前記マーク４とその周辺部が異なる表面粗度をもつ。前記マーク４は、その周辺部より凹んだ凹型であってもよいし、その周辺部より突出した凸型であってもよい。前記マーク４の表面粗度が前記マーク４の周辺部の表面祖度より粗くてもよいし、前記マーク４の周辺部の表面粗度が前記マーク４の表面祖度より粗くてもよい。【選択図】図１
