36results about How to "Avoid direct heating" patented technology

The application discloses a kind of based on oxide cleavage two-dimensional material method;The specific steps of the method are as follows: (1) the block crystal material to be cleaved is closely attached together with vacuum tape, and a layer of insulating oxide film is covered on the surface of the crystal material;(2) heat release tape is heated in advance and released onto the substrate, forming a layer of heat release tape residual layer;(3) the side of the crystal mother tape covered with oxide film is pressed onto the substrate;(4) tear the vacuum tape, as the heat release tape residual layer has adhesion, it will stick the oxide film together with the crystal on the substrate, the crystal surface is exposed;(5) use traditional cleavage tape to continuously thin the crystal to complete the cleavage of the crystal.The application has fewer transfer steps and high cleavage efficiency;The application avoids direct heating of the crystal material sample, which can ensure the stability of the crystal material, and is especially suitable for cleavage of unstable crystal materials.