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Fabrication of a heterojunction bipolar transistor with integrated MIM capacitor
Fabrication of a heterojunction bipolar transistor with integrated MIM capacitor
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机译:具有集成MIM电容器的异质结双极晶体管的制造
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摘要
In the present invention, a semiconductor device is formed which includes an MIM capacitor located on the upper surface of a heterostructure from which the emitter, base and collector sections of a nearby HBT are defined. In this way the capacitor and HBT share a substantially common structure, with the base and emitter electrodes of the HBT fashioned from the same metal layers as the upper and lower capacitor plates, respectively. Furthermore, as the insulator region of the capacitor is formed prior to definition of the HBT structure, the dielectric material used can be deposited by means of a plasma enhanced process, without damaging the HBT structure.
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