MICROFABRICATED SYSTEM FOR MAGNETIC FIELD GENERATION AND FOCUSING
摘要
<p>A method of forming, in or on a Si substrate, planar micro-coils with coil windings of high aspect ration (>3) and a wide variety of geometric shapes. The micro-coils may be formed on a Si substrate and be embedded in a dielectric, or they may be formed in trenches within a Si substrate. The micro-coils may have field enhancing ferromagnetic pillars rising above the micro-coil plane, formed at positions of maximum magnetic field strength and the micro-coils may also include magnetic layers formed beneath the substrate and contacting the pillars to form a substantially closed pathway for the magnetic flux. The substrate may be thinned to membrane proportions. These micro-coils produce strong magnetic fields with strong field gradients and can be used in a wide variety of processes that involve the exertion of strong magnetic forces at small distances or the creation of magnetic wells for trapping and manipulating small particles.</p>
申请公布号
WO2005122194(A1)
申请公布日期
2005.12.22
申请号
WO2005SG00184
申请日期
2005.06.07
申请人
AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH;NANYANG TECHNOLOGICAL UNIVERSITY;RAMADAN, QASEM;SAMPER, VICTOR;POENAR, DANIEL PUIU;CHEN, YU
发明人
RAMADAN, QASEM;SAMPER, VICTOR;POENAR, DANIEL PUIU;CHEN, YU