Micro-fabricated Al0.3Ga0.7As pyramids for potential SPM applications

A novel technique of manufacturing Al0.3Ga0.7As pyramids by liquid phase epitaxy (LPE) for scanning probe microscopy (SPM) sensors is reported Four meticulously designed conditions-partial oxidation, deficient solute, air quenching and germanium doping result in defect-free homogeneous nucleation and subsequent pyramid formation. Micrometer-sized frustums and pyramids are detected by scanning electron microscopy (SEM). The sharp end of the microtip has a radius of curvature smaller than 50 nm. It is believed that such accomplishments would contribute not only to crystal growth theory, but also to miniature fabrication technology.

A novel technique of manufacturing Al0.3Ga0.7As pyramids by liquid phase epitaxy (LPE) for scanning probe microscopy (SPM) sensors is reported Four meticulously designed conditions-partial oxidation, deficient solute, air quenching and germanium doping result in defect-free homogeneous nucleation and subsequent pyramid formation. Micrometer-sized frustums and pyramids are detected by scanning electron microscopy (SEM). The sharp end of the microtip has a radius of curvature smaller than 50 nm. It is believed that such accomplishments would contribute not only to crystal growth theory, but also to miniature fabrication technology.

zhangdi于2010-03-29批量导入

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IEEE Electron Devices Soc.; Chinese Acad Sci.; Natl Nat Sci Fdn China.; Hakuto Co Ltd.; Shenzhen Oceans King Investment Imp & Exp Co.; Shenzhen Refond Opt ELE Co Ltd.; Jiangsu Nata Optoelect Mat Co Ltd.; Beijing Univ Technol.; Gen Res Inst Nnferrous Mat.; Nanjing Univ.; Shanghai Inst Microsyst & Informat Technol.; Sun Yat Univ.; Shanghai Inst Microsyst & Informat Technol.; Sun Yat Univ.; Zhejiang Univ.

Dalian Univ Technol, State Key Lab Mat Modificat Laser Ion Elect Beams, Dalian 116023, Liaoning Prov, Peoples R China

IEEE Electron Devices Soc.; Chinese Acad Sci.; Natl Nat Sci Fdn China.; Hakuto Co Ltd.; Shenzhen Oceans King Investment Imp & Exp Co.; Shenzhen Refond Opt ELE Co Ltd.; Jiangsu Nata Optoelect Mat Co Ltd.; Beijing Univ Technol.; Gen Res Inst Nnferrous Mat.; Nanjing Univ.; Shanghai Inst Microsyst & Informat Technol.; Sun Yat Univ.; Shanghai Inst Microsyst & Informat Technol.; Sun Yat Univ.; Zhejiang Univ.