Abstract: A bipolar transistor device architecture and method of manufacture uses doped glass on the sidewall of the emitter window opening to reduce the emitter-base overlap capacitance while at the same time improving the polysilicon plugging effect. The doped glass sidewall also improves dopant loss in the oxide in the case in which an in-situ doped poly emitter is used. By using a doped sidewall glass, the sensitivity of dopant absorption that can potentially occur in un-doped spacers is removed. The proposed technique also provides a simple method for achieving narrow emitter window openings while simultaneously improving doping uniformity compared to implanted poly techniques. The technique also allows a self-aligned base to be performed, thereby allowing tighter spacing between the extrinsic base and the intrinsic base.

Abstract: A Web based bar code system uses the “seeds” of Code 39 barcodes to create full size, reliable and scannable barcodes when printed from a Web browser with out the need for any special software either on the client's browser or the Web server. The technique passes only the very smallest logical unit of a bar code image across the Internet. The native resizing of images ability built into Web browsers concatenate and stretch the seeds to the desired size. For example, the bandwidth required to display and print large numbers of codes is minimized because the seeds are tiny, sizing in at about 45 bytes per character.