The present invention provides a bipolar transistor having a raised extrinsic
base silicide and an emitter contact border that are self-aligned. The bipolar
transistor of the present invention exhibit reduced parasitics as compared with
bipolar transistors that do not include a self-aligned silicide and a self-aligned
emitter contact border. The present invention also is related to methods of fabricating
the inventive bipolar transistor structure. In the methods of the present invention,
a block emitter polysilicon region replaces a conventional T-shaped emitter polysilicon.