Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method for reducing extrinsic base resistance and improving manufacturability in an NPN transistor










Image Number 6 for United States Patent #6830982.

According to one exemplary embodiment, an NPN bipolar transistor comprises a base layer situated over a collector, where the base layer comprises an intrinsic base region and an extrinsic base region. The NPN bipolar transistor may be, for example, an NPN silicon-germanium heterojunction bipolar transistor. The base layer can be, for example, silicon-germanium. According to this exemplary embodiment, the NPN bipolar transistor further comprises a cap layer situated over the base layer, where a portion of the cap layer is situated over the extrinsic base region, and where the portion of the cap layer situated over the extrinsic base region comprises an indium dopant. The cap layer may be, for example, polycrystalline silicon. According to this exemplary embodiment, the NPN bipolar transistor may further comprise an emitter situated over the intrinsic base region. The emitter may be, for example, polycrystalline silicon.








 
 
  Recently Added Patents
Power storage device and method for manufacturing the same
Compositions and methods for inhibition of MMP13:MMP-substrate interactions
Method for forming contact in an integrated circuit
Pausing multimedia data streams
Semiconductor memory device, test circuit, and test operation method thereof
System and methods for obstacle mapping and navigation
Peer to peer (P2P) missing fields and field valuation feedback
  Randomly Featured Patents
Posterior dynamic stabilization systems and methods
Optical phased array transmitter/receiver
Fast electromagnet device
Brush frame and shell
Roof panel lining of a vehicle with preassembled head protection elements (head bags)
Tooling and method of manufacturing a mesh laminate
Front panel for a electronic housing
Teaching system utilizing magnetic tape
Rocking station for treatment plant conveyance systems
Optical information recording medium