| 摘要 |
FIELD: printing industry. ^ SUBSTANCE: invention relates to a secured and/or valuable document comprising a protective criterion with a semiconductor area. The document contains at least one first semiconductor layer and one second semiconductor layer, which contact with each other and form a system of a semiconductor contact of type II. ^ EFFECT: document ensures higher counterfeit protection, simple and reliable provision of authenticity verification, with simplicity of its manufacturing. ^ 14 cl, 5 dwg, 6 ex |
