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  1. Research Outputs

Process of manufacturing wafers usable in the semiconductor industry

Patent
Publication Date:
2009
Short description:
Process of manufacturing wafers usable in the semiconductor industry / Ottaviani, Giampiero; Corni, Federico; P., Ferrari; F., Villa.
abstract:
To manufacture a layer of semiconductor material, a first wafer of semiconductor material is subjected to implantation to form a defect layer at a distance from a first face; the first wafer is bonded to a second wafer, by putting an insulating layer present on the second wafer in contact with the first face of the first wafer. Then, hydrogen atoms are introduced into the first wafer through a second face at an energy such as to avoid defects to be generated in the first wafer and at a temperature lower than 600° C. Thereby, the first wafer splits into a usable layer, bonded to the second wafer, and a remaining layer disposed between the defect layer and the second face of the first wafer. Prior to bonding, the first wafer is subjected to processing steps for obtaining integrated components.
Iris type:
Brevetto
Keywords:
IPC: C03C 15/00 H01L 21/30 US Classification: 216 35 438455 438458 Field Of Search: 216 35; 438455; 438458 Silicon on insulator; wafer splitting
List of contributors:
Ottaviani, Giampiero; Corni, Federico; P., Ferrari; F., Villa
Authors of the University:
CORNI Federico
Handle:
https://iris.unimore.it/handle/11380/805890
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http://www.patentlens.net/patentlens/patents.html?patnums=US_7524736&language=en&query=(US_7524736%20in%20publication_number)&stemming=true&returnTo=patentnumber.html%3Fquery%3D%26stemming%3Dtrue%26patentNumber%3DUS_7524736%26collections%3DUS_B%2CEP_B%2CAU_B%2CWO_A%2CAU_A%26language%3Den#p0
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