发明公开
EP1301827A4 PHOTOLITHOGRAPHICALLY-PATTERNED OUT-OF-PLANE COIL STRUCTURES AND METHOD OF MAKING 有权
PHOTOLITHOGRAPHISCH GEMUSTERTEAUSSERFLÄCHIGESPULENSTRUKTUREN UND VERFAHREN ZUR ERZEUGUNG

PHOTOLITHOGRAPHICALLY-PATTERNED OUT-OF-PLANE COIL STRUCTURES AND METHOD OF MAKING
摘要:
An out-of-plane micro-structure which can be used for on-chip integration of high-Q inductors and transformers places the magnetic field direction parallel to the substrate (14) plane without requiring high aspect ratio processing. The photolithographically patterned coil structure includes an elastic member (61 a) having an intrinsic stress profile. The intrinsic stress profile biases a free portion (11) away from the substrate (14) forming a loop winding (142). An anchor portion (12) remains fixed to the substrate (14). The free portion end becomes a second anchor portion (61 c) which may be connected to the substrate (14) via soldering or plating. A series of individual coil structures (140) can be joined via their anchor portions to form inductors and transformers.
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