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Low frequency noise...
Low frequency noise in strained Si heterojunction bipolar transistors
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- Fjer, M. (författare)
- School of Electrical, Electronic and Computer Engineering, Newcastle University, NE1 7RU Newcastle upon Tyne, United Kingdom
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- Persson, Stefan (författare)
- Mittuniversitetet,Institutionen för informationsteknologi och medier (-2013)
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- Escobedo-Cousin, E. (författare)
- School of Electrical, Electronic and Computer Engineering, Newcastle University, NE1 7RU Newcastle upon Tyne, United Kingdom
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- O'Neill, A. G. (författare)
- School of Electrical, Electronic and Computer Engineering, Newcastle University, NE1 7RU Newcastle upon Tyne, United Kingdom
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(creator_code:org_t)
- 2011
- 2011
- Engelska.
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Ingår i: IEEE Transactions on Electron Devices. - 0018-9383 .- 1557-9646. ; 58:12, s. 4196-4203
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- The low frequency noise performance of strained Si heterojunction bipolar transistors (sSi HBTs) is presented for the first time. Conventional SiGe HBTs and Si bipolar junction transistors (BJTs), processed with strained Si devices, were also measured as a reference. It is found that a lower noise level is obtained in sSi HBTs for a given collector current, which is important for circuit applications, compared with either SiGe HBTs or Si BJTs. However, sSi HBTs exhibit greater low frequency noise compared with other devices at fixed base current. This is due to the presence of defects that are caused by the integration of the strain-relaxed buffer in the fabrication of sSi HBTs. The relationship between low frequency noise and defects is supported by material characterization. © 2011 IEEE.
Nyckelord
- 1/f noise
- Defect
- low frequency noise
- strain-relaxed buffer (SRB)
- strained Si heterojunction bipolar transistors (HBTs)
- strained silicon
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