Integrated Transformer
A technology that integrates transformers and metal layers. It is applied in semiconductor devices, electrical solid state devices, semiconductor/solid state device components, etc., and can solve problems such as consumption and large chip area.
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[0028] Please refer to Figure 1A , Figure 1B , Figure 1C , Figure 1D and Figure 1E ,in Figure 1A , 1B and 1C are schematic diagrams of the first metal layer, the second metal layer and the third metal layer of the integrated transformer according to the first embodiment of the present invention, Figure 1D is a top view of the integrated transformer according to the first embodiment of the present invention, Figure 1E It is a sectional view of this embodiment. The integrated transformer of this embodiment can be applied to a transformer or a balanced / unbalanced transformer (balun) in a radio frequency chip.
[0029] In this embodiment, the integrated transformer is an asymmetric integrated transformer (asymmetric integrated transformer), and the ratio of the inductance values of the two inductors is about 9nH:6nH (nano-Henry) (just an example, not a limitation of the present invention), And the entire integrated transformer has a very small chip area, about 150u...
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