英语翻译Since the inception of the Internet,the communication ma

英语翻译
Since the inception of the Internet,the communication market segment has seen an explosive growth.There is an increasing demand for bandwidth over the network due to a rapid increase in the number of users as well as the need for video/data communication.Such requirements have put stringent demands on the semiconductor technologies for providing adequate performance at reasonable cost.SiGe BiCMOS
technology provides a very elegant solution to address these market needs,for various reasons:1) high-speed heterojunction bipolar transistors (HBTs) provide fT,fMAX linearity (IP3),and noise figure（NFmin） comparable with more exotic HBTs like GaAs and InP；2) multiple variants of HBTs that are doped selectively to provide varying breakdown voltage requirements can be seamlessly integrated with state-of-the-art CMOS and high-quality passives；and 3) this technology provides higher yields and lower cost compared with other viable technologyoptions.It is not surprising,therefore,that the estimated worldwide SiGe market growth will exceed $1.0 billion by 2004.
IBM’s SiGe BiCMOS is now in its fourth lithographic generation since the introduction of the 0.5-μm generation into volume production.The key component of the device offering is the SiGe-based HBT whose performance（fT,fMAX） has been significantly improved to over 200 GHz in the 0.13-μm generation (see Fig.1).Wireless and storage applications continue to leverage the 0.5- and 0.25-μm generations where cost and time-to-market drive the technology choices.In contrast,
network communication space leads the 0.18- and 0.13-μm product applications where VLSI chips need substantial CMOS integration along with the high-performance SiGe HBT.
This paper reports IBM’s recent SiGe BiCMOS technology enhancements,such as high-speed HBT development,HBT modifications to address power amplifier (PA) application as well as low-cost wireless solutions,and high-performance passive element integration.Furthermore,we cover some key products and applications that these technologies have addressed.Finally,some insight is provided into the future
directions of SiGe BiCMOS technologies for addressing a myriad of applications.

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