Naslov
Impact of Emitter Interface Treatment on the Horizontal Current Bipolar Transistor (HCBT) Characteristics and RF Circuit Performance

Autori
Žilak, Josip ; Koričić, Marko ; Suligoj, Tomislav ; Mochizuki, Hidenori ; Morita, So-ichi

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 2015 Bipolar/BiCMOS Circuits and Technology Meeting / - Boston (MA) : Institute of Electrical and Electronics Engineers (IEEE), 2015, 31-34

Skup
Bipolar/BiCMOS Circuits and Technology Meeting

Mjesto i datum
Boston (MA), Sjedinjene Američke Države, 26.10.2015. - 28.10.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Horizontal Current Bipolar Transistor; emitter interface; mixer; linearity; conversion gain; noise figure

Sažetak
The impact of the HF cleaning step prior to the emitter α-Si deposition on the Horizontal Current Bipolar Transistor (HCBT) electrical characteristics is analyzed. A longer HF dip results in a thinner emitter interface oxide implying a smaller emitter resistance (Re), which equals 85 Ω for the unit HCBT as compared to 104 Ω for the unit HCBT with a shorter HF dip. The thinner oxide is still sufficiently thick to block the emitter α Si etching and protect the intrinsic transistor structure. The impact of the emitter interface properties on the performance of designed high-linearity double-balanced active mixers is examined. The reduction of the emitter resistance results in 1.8 dB higher conversion gain and 2.4 dB lower IIP3 at 50 mA for the mixer without degeneration emitter resistor (RE). The effect of interface oxide thickness is shown to be negligible for RE > 10 Ω. The HCBT mixers achieve maximum IIP3 of 23.8 dBm and conversion gain of 2.4 dB at the current of 50 mA.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA