講演抄録/キーワード |
講演名 |
2009-06-25 12:15
Estimation of collector current spreading in InGaAs SHBT having 75-nm-thick collector ○Yasuyuki Miyamoto・Shinnosuke Takahashi・Takashi Kobayashi・Hiroyuki Suzuki・Kazuhito Furuya(Tokyo Inst. of Tech.) ED2009-79 SDM2009-74 エレソ技報アーカイブへのリンク:ED2009-79 SDM2009-74 |
抄録 |
(和) |
We investigated collector current spreading in InGaAs single heterojunction bipolar transistors (SHBTs) having a collector thickness of 75 nm. SHBTs were fabricated with three different emitter widths―200, 400, and 600 nm―and the highest cutoff frequency that was obtained was 468 GHz. The relationship between the current density at the highest cutoff frequency and the emitter width could not be used to estimate the current spreading because it was independent of the collector-base voltage. However, the relationship between the current density with the increase in the total collector-base capacitance and the emitter width indicates current spreading in the collector. The current spreading was estimated to be approximately 90 nm. |
(英) |
We investigated collector current spreading in InGaAs single heterojunction bipolar transistors (SHBTs) having a collector thickness of 75 nm. SHBTs were fabricated with three different emitter widths―200, 400, and 600 nm―and the highest cutoff frequency that was obtained was 468 GHz. The relationship between the current density at the highest cutoff frequency and the emitter width could not be used to estimate the current spreading because it was independent of the collector-base voltage. However, the relationship between the current density with the increase in the total collector-base capacitance and the emitter width indicates current spreading in the collector. The current spreading was estimated to be approximately 90 nm. |
キーワード |
(和) |
/ / / / / / / |
(英) |
InGaAs/InP / HBT / Kirk effect / current spreading / / / / |
文献情報 |
信学技報, vol. 109, no. 97, ED2009-79, pp. 129-132, 2009年6月. |
資料番号 |
ED2009-79 |
発行日 |
2009-06-17 (ED, SDM) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
ED2009-79 SDM2009-74 エレソ技報アーカイブへのリンク:ED2009-79 SDM2009-74 |
|