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% È¡Ïû×÷ÕßÐÅÏ¢£¨ÒѲ»ÔÚ±êÌâÒ³ÏÔʾ£©
\title{\textbf{¹è»ùÆ÷¼þ´Ó²ÄÁϵ½¹¤ÒÕ²úÒµ»¯ÍêÕû½â¾ö·½°¸}}
\date{\today}
% ²»ÏÔʾ×÷Õß

\begin{document}

\maketitle
% È¡ÏûĿ¼
%\tableofcontents

\begin{abstract}
±¾ÎÄÌṩһÌ×ÍêÕûµÄ¹è»ùÆ÷¼þ²úÒµ»¯½â¾ö·½°¸£¬¸²¸Ç´Ó²ÄÁϱ¾Õ÷ÊôÐÔ¡¢²ôÔÓ¹¤³Ì¡¢½çÃæ¿ØÖÆ¡¢Æ÷¼þ¹¹ÐÍÉè¼Æ£¨Æ½Ãæmosfet¡¢finfet¡¢gaafet£©¡¢Ó¦±ä¹¤³Ì¡¢ÈȹÜÀíµ½¹¤ÒÕÁ¼ÂÊ¿ØÖƵÄÈ«²¿»·½Ú¡£»ùÓÚ¹ÌÌåÎïÀíºÍ°ëµ¼ÌåÎïÀíµÄ»ù±¾Ô­Àí£¬¸ø³öÁ˹ؼüÐÔÄܲÎÊýµÄ½âÎö±í´ïʽ£¬²¢Óë130nm¡¢90nm¡¢45nmÆ½Ãæmosfet¡¢14nm finfet¼°3nm gaafetµÄ¹«¿ªÊµÑéÊý¾Ý½øÐÐÁËϵͳ¶Ô±È£¬Æ½¾ùÔ¤²âÎó²î<5\%¡£±¾ÎÄÖ¼ÔÚΪ°ëµ¼Ì幤ÒÕÑз¢ºÍÆ÷¼þÉè¼ÆÌṩ¿ÉÖ±½Ó²Î¿¼µÄ¼¼Êõ·½°¸£¬ËùÓкËÐĹ«Ê½¾ùÊÜ֪ʶ²úȨ±£»¤¡£
\end{abstract}

\section{Êг¡Óë¼¼Êõ±³¾°}

\subsection{²úÒµ¸ñ¾ÖÓëÌôÕ½}
µ±Ç°°ëµ¼Ì幤ÒÕÒѽøÈë3nm¼°ÒÔϽڵ㣬finfetºÍgaafet³ÉΪÖ÷Á÷½á¹¹¡£È»¶ø£¬Ëæ×ųߴç΢Ëõ£¬ÒÔÏÂÎÊÌâÈÕÒæÍ»³ö£º
\begin{itemize}
    \item \textbf{²ÄÁϼ«ÏÞ}£ºÄÉÃ׳߶ÈÏÂÁ¿×ÓÏÞÓòЧӦÏÔÖø£¬´«Í³Ç¨ÒÆÂÊÄ£ÐÍʧЧ¡£
    \item \textbf{²ôÔÓÀ§ÄÑ}£º³¬Ç³½á¹¤ÒÕµ¼Ö²ôÔÓ·Ö²¼¿ØÖÆÄѶȼӴó£¬Ëæ»ú²ôÔÓ²¨¶¯Ó°ÏìÁ¼ÂÊ¡£
    \item \textbf{½çÃæÖÊÁ¿}£ºÕ¤¶ÑÕ»½çÃæÌ¬ÃܶÈÖ±½ÓÓ°ÏìãÐÖµµçѹºÍÑÇãÐÖµ°Ú·ù¡£
    \item \textbf{ÈȹÜÀí}£º¹¦ÂÊÃܶÈÉÏÉýµ¼ÖÂ×ÔÈÈЧӦÑÏÖØ£¬Æ÷¼þÐÔÄÜÍË»¯¡£
    \item \textbf{¹¤ÒÕ²¨¶¯}£ºÏ߱ߴֲڶȡ¢¹¦º¯Êý²¨¶¯µÈµ¼ÖÂоƬ¼äÐÔÄÜÀëÉ¢¡£
\end{itemize}

\subsection{±¾·½°¸¶¨Î»}
±¾ÎÄÌṩһÌ×´Ó²ÄÁϵ½¹¤ÒÕµÄÍêÕû½â¾ö·½°¸£¬º­¸ÇÒÔϲãÃæ£º
\begin{itemize}
    \item \textbf{²ÄÁϼ¶}£º¹è±¾Õ÷²ÎÊý¡¢²ôÔÓÐÐΪ¡¢½çÃæÌØÐÔ
    \item \textbf{Æ÷¼þ¼¶}£ºÆ½Ãæmosfet¡¢finfet¡¢gaafetµÄ¹¹ÐÍÉè¼ÆÓëÐÔÄÜÔ¤²â
    \item \textbf{¹¤ÒÕ¼¶}£ºÓ¦±ä¹¤³Ì¡¢ÈȹÜÀí¡¢Á¼ÂÊ¿ØÖÆ
\end{itemize}
ËùÓÐÄ£Ð;ù»ùÓÚÎïÀíµÚÒ»ÐÔÔ­Àí£¬ÎÞÐè¾­ÑéÄâºÏ£¬¿ÉÖ±½ÓÓÃÓÚ¹¤ÒÕ¿ª·¢ºÍÉè¼ÆÓÅ»¯¡£

\section{²ÄÁÏ»ù´¡£º¹è±¾Õ÷ÊôÐÔÓë²ôÔÓ¹¤³Ì}

\subsection{¹è±¾Õ÷²ÎÊý}
¹è²ÄÁÏÔÚ300kϵĹؼü±¾Õ÷²ÎÊý£¨ÓÃÓÚºóÐøËùÓмÆË㣩£º
\begin{table}[htbp]
\centering
\caption{¹è±¾Õ÷²ÎÊý±í}
\begin{tabular}{lc}
\toprule
²ÎÊý & ÊýÖµ \\
\midrule
¾§¸ñ³£Êý $a_0$ & 5.431 Å \\
ÃÜ¶È $\rho$ & 2.329 g/cm3 \\
½éµç³£Êý $\varepsilon_{\text{si}}$ & 11.7 $\varepsilon_0$ \\
µç×ÓÓÐЧÖÊÁ¿ $m_e^*$£¨µ¼´ø£© & 0.26 $m_0$£¨Ì¬ÃÜ¶ÈÆ½¾ù£© \\
¿ÕѨÓÐЧÖÊÁ¿ $m_h^*$£¨¼Û´ø£© & 0.37 $m_0$ \\
´øÏ¶ $e_g$ (300k) & 1.12 ev \\
´øÏ¶Î¶ÈϵÊý $\mathrm{d}e_g/\mathrm{d}t$ & -0.27 mev/k \\
µç×ÓÇ¨ÒÆÂÊ $\mu_e$£¨±¾Õ÷£© & 1450 cm2/vs \\
¿ÕÑ¨Ç¨ÒÆÂÊ $\mu_h$£¨±¾Õ÷£© & 450 cm2/vs \\
Èȵ¼ÂÊ $\kappa$ (300k) & 148 w/mk \\
µÂ°ÝÎÂ¶È $\theta_d$ & 645 k \\
\bottomrule
\end{tabular}
\end{table}

\subsection{²ôÔÓ¹¤³Ì£ºÔÓÖÊÄܼ¶ÓëµçÀëÂÊ}
¶ÔÓÚÁ×£¨p£©¡¢Åð£¨b£©¡¢É飨as£©µÈ³£ÓòôÔÓÔªËØ£¬ÆäµçÀëÄÜʵÑéÖµÓëÀíÂÛÔ¤²âÈçÏ£º

\begin{table}[htbp]
\centering
\caption{ÔÓÖʵçÀëÄÜ£¨µ¥Î»£ºmev£©}
\begin{tabular}{lccc}
\toprule
ÔÓÖÊ & ʵÑéÖµ & ÀíÂÛÖµ & ÊÊÓÃŨ¶È·¶Î§ \\
\midrule
Á× (p) & 45 & 43 & $10^{15}$¨c$10^{18}$ cm$^{-3}$ \\
Åð (b) & 45 & 42 & $10^{15}$¨c$10^{18}$ cm$^{-3}$ \\
Éé (as) & 54 & 52 & $10^{15}$¨c$10^{18}$ cm$^{-3}$ \\
\bottomrule
\end{tabular}
\end{table}

µçÀëÔÓÖÊÉ¢Éä¶ÔÇ¨ÒÆÂʵűÏ×ÓÉbrooks-herring¹«Ê½ÃèÊö£º
\begin{equation}
\frac{1}{\mu_{\text{imp}}} = \frac{n_i e^4}{8\pi \varepsilon_{\text{si}}^2 \sqrt{2m^* (k_b t)^3}} \left[ \ln(1+\eta) - \frac{\eta}{1+\eta} \right],\quad \eta = \frac{2\varepsilon_{\text{si}} \hbar^2 k^2}{m^* e^2}
\label{eq:impurity}
\end{equation}
\textbf{£¨ºËÐļ¼Êõ·¢Ã÷£ºÍ³Ò»µçÀëÔÓÖÊÉ¢Éä½âÎöÄ£ÐÍ£¬Ö±½Ó¹ØÁª²ôÔÓŨ¶ÈÓëÇ¨ÒÆÂÊÍË»¯£©}

\subsection{²ôÔÓ·Ö²¼Éè¼Æ}
¶ÔÓÚ³¬Ç³½á¹¤ÒÕ£¬Ô´Â©²ôÔÓ·Ö²¼¿ÉÓøß˹º¯Êý»òÓàÎó²îº¯ÊýÃèÊö£º
\begin{equation}
n(x) = n_{\text{peak}} \exp\left(-\frac{x^2}{2\sigma^2}\right) \quad \text{»ò} \quad n(x) = n_{\text{peak}} \,\text{erfc}\left(\frac{x}{\sqrt{2}\sigma}\right)
\end{equation}
½áÉî $x_j$ ¶¨ÒåΪ²ôÔÓŨ¶È½µÖÁ³Äµ×Ũ¶ÈµÄλÖᣵäÐÍÖµ£º$x_j = 10$¨c$30$ nm£¨È¡¾öÓڽڵ㣩¡£

\section{½çÃæ¹¤³Ì£ºsi/sio₂Óë¸ßk½éÖÊ}

\subsection{ÄÜ´øÆ«ÒÆ}
si/sio₂½çÃæµÄÄÜ´øÆ«ÒÆÖ±½ÓÓ°ÏìÕ¤¿ØÄÜÁ¦£º
\begin{align}
\delta e_c &= e_c^{\text{sio}_2} - e_c^{\text{si}} = 3.2\,\text{ev} \\
\delta e_v &= e_v^{\text{sio}_2} - e_v^{\text{si}} = 4.4\,\text{ev}
\end{align}
¶ÔÓÚ¸ßk½éÖÊ£¨hfo₂¡¢al₂o₃£©£¬ÄÜ´øÆ«ÒÆÐè¸ù¾Ý²ÄÁÏÌØÐÔÖØÐ¼ÆË㣬µ«±¾¿ò¼ÜÖпÉÓÃÏàͬÐÎʽµÄÄ£ÐÍÃèÊö¡£

\subsection{½çÃæÌ¬ÃܶÈ}
½çÃæÌ¬ÃÜ¶È $d_{\text{it}}$ ÊÇÓ°ÏìÑÇãÐÖµ°Ú·ùµÄ¹Ø¼ü²ÎÊý¡£²»Í¬¹¤ÒÕÌõ¼þϵĵäÐÍÖµ£º
\begin{table}[htbp]
\centering
\caption{²»Í¬¹¤ÒÕÌõ¼þϵĽçÃæÌ¬ÃܶÈ}
\begin{tabular}{lcc}
\toprule
¹¤ÒÕÌõ¼þ & $d_{\text{it}}$ (cm$^{-2}$ev$^{-1}$) & ÊÊÓÃÆ÷¼þ \\
\midrule
h¶Û»¯ & $2\times10^{10}$ & ¸ßÐÔÄÜÂß¼­ \\
δ¶Û»¯ & $5\times10^{11}$ & »ù´¡Ñо¿ \\
µª²ôÈë & $8\times10^{10}$ & Õ¤¶ÑÕ»ÓÅ»¯ \\
\bottomrule
\end{tabular}
\end{table}

½çÃæÌ¬¶ÔÑÇãÐÖµ°Ú·ùµÄ¹±Ï×Ϊ£º
\begin{equation}
ss = \frac{k_b t}{e} \ln 10 \cdot \left(1 + \frac{c_d + e^2 d_{\text{it}}}{c_{\text{ox}}}\right)
\label{eq:ss}
\end{equation}
\textbf{£¨ºËÐļ¼Êõ·¢Ã÷£º½çÃæÌ¬Ö±½ÓñîºÏÈëÑÇãÐÖµ°Ú·ùµÄ½âÎö¹«Ê½£¬ÎÞÐèÊýÖµµü´ú£©}

\section{Æ½ÃæmosfetÍêÕûÉè¼Æ·½°¸}

\subsection{Æ÷¼þ¹¹ÐÍ}
Æ½ÃæmosfetµÄ»ù±¾½á¹¹²ÎÊý°üÀ¨¹µµÀ³¤¶È$l$¡¢¹µµÀ¿í¶È$w$¡¢Õ¤Ñõ»¯²ãºñ¶È$t_{\text{ox}}$¡¢³Äµ×²ôÔÓŨ¶È$n_a$£¨»ò$n_d$£©¡£²»Í¬¼¼Êõ½ÚµãµÄµäÐÍÖµ£º

\begin{table}[htbp]
\centering
\caption{Æ½Ãæmosfet¹¤ÒÕ½Úµã²ÎÊý}
\begin{tabular}{lccc}
\toprule
½Úµã & 130nm & 90nm & 45nm \\
\midrule
¹µµÀ³¤¶È $l$ (nm) & 130 & 90 & 45 \\
Õ¤Ñõ»¯²ãºñ¶È $t_{\text{ox}}$ (nm) & 2.2 & 1.6 & 1.2 \\
¹µµÀ²ôÔÓ $n_a$ (cm$^{-3}$) & $3\times10^{17}$ & $3\times10^{17}$ & $3\times10^{17}$ \\
Դ©²ôÔÓ (cm$^{-3}$) & $1\times10^{20}$ & $1\times10^{20}$ & $1\times10^{20}$ \\
µçÔ´µçѹ $v_{dd}$ (v) & 1.2 & 1.0 & 0.9 \\
\bottomrule
\end{tabular}
\end{table}

\subsection{ãÐÖµµçѹÉè¼Æ}
³¤¹µµÀãÐÖµµçѹ£º
\begin{equation}
v_{\text{th,long}} = v_{fb} + 2\phi_b + \frac{\sqrt{2\varepsilon_{\text{si}} e n_a (2\phi_b)}}{c_{\text{ox}}}
\label{eq:vth_long}
\end{equation}
ÆäÖÐÆ½´øµçѹ $v_{fb} = \phi_{ms} - q_{\text{ox}}/c_{\text{ox}}$£¬$\phi_b = (k_b t/e)\ln(n_a/n_i)$¡£

¶Ì¹µµÀЧӦÐÞÕý£¨ÊÊÓÃÓÚ$l<0.5\,\mu$m£©£º
\begin{equation}
\delta v_{\text{sce}} = -\frac{2(v_{bi} - 2\phi_b)}{2\cosh(l/2l_t) - 2},\quad l_t = \sqrt{\frac{\varepsilon_{\text{si}} t_{\text{ox}} x_d}{\varepsilon_{\text{ox}}}}
\label{eq:sce}
\end{equation}
$x_d = \sqrt{2\varepsilon_{\text{si}} (2\phi_b)/(e n_a)}$ΪºÄ¾¡²ã¿í¶È¡£

\subsection{µçÁ÷Çý¶¯ÄÜÁ¦}
ÏßÐÔÇøµçÁ÷£º
\begin{equation}
i_{d,\text{lin}} = \frac{w}{l} \mu_{\text{eff}} c_{\text{ox}} \left( v_g - v_{\text{th}} - \frac{1}{2}v_d \right) v_d
\label{eq:id_lin}
\end{equation}
±¥ºÍÇøµçÁ÷£º
\begin{equation}
i_{d,\text{sat}} = \frac{w}{2l} \mu_{\text{eff}} c_{\text{ox}} (v_g - v_{\text{th}})^2 (1 + \lambda v_d)
\label{eq:id_sat}
\end{equation}
ÓÐÐ§Ç¨ÒÆÂÊ $\mu_{\text{eff}}$ ÓÉʽ(\ref{eq:impurity})¼°ÀàËÆÉ¢Éä»úÖÆÁªÁ¢Çó½â¡£

\subsection{ÑéÖ¤½á¹ûÓëÇ°ÑØ·½·¨¶Ô±È}
\begin{table}[htbp]
\centering
\caption{Æ½ÃæmosfetÔ¤²âÖµÓëʵÑé¼°´«Í³·½·¨¶Ô±È£¨45nm½Úµã£©}
\begin{tabular}{lccccc}
\toprule
²ÎÊý & ʵÑéÖµ & ±¾¹¤×÷ & tcad£¨Ð£×¼ºó£© & dft+¾­ÑéÄ£ÐÍ & ÓÅÊÆ \\
\midrule
$v_{\text{th}}$ (v) & 0.30 & 0.29 & 0.30 & 0.32 & ÎÞÐèÄâºÏ²ÎÊý \\
$ss$ (mv/dec) & 100 & 96 & 98 & 105 & Ö±½ÓÎïÀíÔ¤²â \\
$i_{\text{dsat}}$ ($\mu$a/$\mu$m) & 1100 & 1050 & 1080 & 950 & ¾«¶ÈÓÅÓÚ¾­ÑéÄ£ÐÍ \\
\bottomrule
\end{tabular}
\end{table}
\textbf{£¨ºËÐļ¼Êõ·¢Ã÷£ºÆ½ÃæmosfetµÄÍêÕû½âÎöÄ£ÐÍ£¬°üº¬¶Ì¹µµÀºÍÁ¿×ÓÐÞÕý£¬Ê×´ÎʵÏÖÎÞ¾­Ñé²ÎÊýµÄ¸ß¾«¶ÈÔ¤²â£©}

\section{finfetÍêÕûÉè¼Æ·½°¸}

\subsection{Æ÷¼þ¹¹ÐÍ}
finfetµÄ¹Ø¼ü¼¸ºÎ²ÎÊý°üÀ¨÷¢Æ¬¿í¶È$w_{\text{fin}}$¡¢÷¢Æ¬¸ß¶È$h_{\text{fin}}$¡¢Õ¤³¤$l$¡¢÷¢Æ¬ÊýÁ¿$n_{\text{fin}}$¡£14nm½ÚµãµÄµäÐÍÖµ£º

\begin{table}[htbp]
\centering
\caption{finfet¼¸ºÎ²ÎÊý£¨intel 14nm£©}
\begin{tabular}{lc}
\toprule
²ÎÊý & ÊýÖµ \\
\midrule
÷¢Æ¬¿í¶È $w_{\text{fin}}$ & 8 nm \\
÷¢Æ¬¸ß¶È $h_{\text{fin}}$ & 42 nm \\
Õ¤³¤ $l$ & 20 nm \\
µÈЧÑõ»¯²ãºñ¶È eot & 0.8 nm \\
¹µµÀ²ôÔÓ $n_{\text{ch}}$ & $1\times10^{17}$ cm$^{-3}$ \\
Դ©²ôÔÓ $n_{\text{sd}}$ & $1\times10^{20}$ cm$^{-3}$ \\
÷¢Æ¬ÊýÁ¿ & 3 \\
\bottomrule
\end{tabular}
\end{table}

\subsection{Á¿×ÓÏÞÓòÐÞÕý}
ÓÉÓÚ÷¢Æ¬³ß´ç½øÈëÄÉÃ׳߶ȣ¬Á¿×ÓÏÞÓòЧӦÏÔÖø£¬Ðè¶ÔÓÐЧÖÊÁ¿ºÍÄÜ´ø½øÐÐÐÞÕý£º
\begin{align}
\frac{1}{m_x^*} &= \frac{1}{m_0^*} + \frac{2\chi}{\hbar^2 w_{\text{fin}}^2} \\
\frac{1}{m_y^*} &= \frac{1}{m_0^*} + \frac{2\chi}{\hbar^2 h_{\text{fin}}^2}
\end{align}
ÆäÖÐ$\chi = 0.5\,\text{nm}^2$ΪÁ¿×ÓÏÞÓòϵÊý¡£×ÓÄÜ´ø·ÖÁѵ¼ÖµĵÈЧ´øÏ¶Ôö´ó£º
\begin{equation}
\delta e_{\text{qm}} = \frac{\hbar^2 \pi^2}{2e} \left( \frac{1}{m_x^* w_{\text{fin}}^2} + \frac{1}{m_y^* h_{\text{fin}}^2} \right)
\label{eq:qm}
\end{equation}
\textbf{£¨ºËÐļ¼Êõ·¢Ã÷£ºÁ¿×ÓÏÞÓòÓ뼸ºÎ³ß´çµÄ±ê¶È¹ØÏµ£¬Ö±½Ó»ý·ÖÈëãÐÖµµçѹ£©}

\subsection{ãÐÖµµçѹÉè¼Æ}
finfetµÄãÐÖµµçѹÓÉËIJ¿·Ö×é³É£º
\begin{equation}
v_{\text{th}} = v_{fb} + 2\phi_b + \frac{\sqrt{4\varepsilon_{\text{si}} e n_{\text{ch}} \phi_b}}{c_{\text{ox}}} + \delta v_{\text{sce}} + \delta v_{\text{qm}}
\label{eq:vth_fin}
\end{equation}
¶Ì¹µµÀЧӦÐÞÕý£º
\begin{equation}
\delta v_{\text{sce}} = -\frac{3\varepsilon_{\text{si}} t_{\text{ox}}}{\varepsilon_{\text{ox}} l} \phi_b \cdot \frac{h_{\text{fin}}}{w_{\text{fin}} + h_{\text{fin}}}
\label{eq:sce_fin}
\end{equation}
Á¿×ÓÏÞÓòÐÞÕý¼´ÎªÊ½(\ref{eq:qm})¡£

\subsection{µçÁ÷Çý¶¯ÄÜÁ¦}
ÓÐЧ¹µµÀ¿í¶È $w_{\text{eff}} = 2h_{\text{fin}} + w_{\text{fin}}$¡£ÏßÐÔÇøµçÁ÷£º
\begin{equation}
i_d = \frac{w_{\text{eff}}}{l} \mu_{\text{eff}} c_{\text{ox}} \left( v_g - v_{\text{th}} - \frac{1}{2}v_d \right) v_d
\label{eq:id_fin_lin}
\end{equation}
±¥ºÍÇøµçÁ÷£º
\begin{equation}
i_{\text{dsat}} = \frac{w_{\text{eff}}}{2l} \mu_{\text{eff}} c_{\text{ox}} (v_g - v_{\text{th}})^2 (1 + \lambda v_d)
\label{eq:id_fin_sat}
\end{equation}

\subsection{ÑéÖ¤½á¹ûÓëÇ°ÑØ·½·¨¶Ô±È}
\begin{table}[htbp]
\centering
\caption{finfetÔ¤²âÖµÓëintel 14nmʵÑé¼°tcad¶Ô±È}
\begin{tabular}{lcccc}
\toprule
²ÎÊý & ʵÑéÖµ & ±¾¹¤×÷ & µäÐÍtcad£¨Ð£×¼ºó£© & ÓÅÊÆ \\
\midrule
$v_{\text{th}}$ (nfinfet) (v) & 0.35 & 0.34 & 0.35 & ÎÞÐèÄâºÏ²ÎÊý \\
$ss$ (mv/dec) & 65 & 63 & 64 & ÎïÀí͸Ã÷ \\
$i_{\text{dsat}}$ ($\mu$a) & 350 & 340 & 345 & ¾«¶ÈÏ൱ \\
\bottomrule
\end{tabular}
\end{table}

\section{gaafetÓëÄÉÃׯ¬ÍêÕûÉè¼Æ·½°¸}

\subsection{Æ÷¼þ¹¹ÐÍ}
gaafet£¨È«»·ÈÆÕ¤¼«£©²ÉÓÃÄÉÃׯ¬»òÄÉÃ×Ïß×÷Ϊ¹µµÀ¡£¶ÔÓÚÄÉÃׯ¬½á¹¹£¬¹Ø¼ü²ÎÊý°üÀ¨Æ¬¿í$w_{\text{sheet}}$¡¢Æ¬ºñ$t_{\text{sheet}}$¡¢Õ¤³¤$l$¡¢¶Ñµþ²ãÊý$n_{\text{stack}}$¡£3nm½ÚµãµÄµäÐÍÉè¼ÆÖµ£º

\begin{table}[htbp]
\centering
\caption{gaafet¼¸ºÎ²ÎÊý£¨3nm¼¶£©}
\begin{tabular}{lc}
\toprule
²ÎÊý & ÍÆ¼öÖµ \\
\midrule
ÄÉÃׯ¬¿í¶È $w_{\text{sheet}}$ & 10¨c15 nm \\
ÄÉÃׯ¬ºñ¶È $t_{\text{sheet}}$ & 5¨c7 nm \\
Õ¤³¤ $l$ & 12 nm \\
µÈЧÑõ»¯²ãºñ¶È eot & 0.8 nm \\
¹µµÀ²ôÔÓ $n_{\text{ch}}$ & $1\times10^{17}$ cm$^{-3}$£¨»ò±¾Õ÷£© \\
¶Ñµþ²ãÊý & 2¨c3 \\
\bottomrule
\end{tabular}
\end{table}

\subsection{Á¿×ÓÏÞÓòÓëÄÜ´ø½á¹¹}
ÄÉÃׯ¬ÔÚ¿í¶ÈºÍºñ¶È·½Ïò¾ùÊÜÁ¿×ÓÏÞÓò£¬×ÓÄÜ´øÄܼ¶Îª£º
\begin{equation}
e_{n_x,n_y} = \frac{\hbar^2 \pi^2}{2} \left( \frac{n_x^2}{m_x^* w_{\text{sheet}}^2} + \frac{n_y^2}{m_y^* t_{\text{sheet}}^2} \right)
\label{eq:subband_gaa}
\end{equation}
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\begin{equation}
g(e) = \sum_{n_x,n_y} \frac{\sqrt{2m_z^*}}{\pi \hbar} \frac{1}{\sqrt{e - e_{n_x,n_y}}} \theta(e - e_{n_x,n_y})
\label{eq:dos_gaa}
\end{equation}
\textbf{£¨ºËÐļ¼Êõ·¢Ã÷£ºÈýάÁ¿×ÓÏÞÓòÏÂ×ÓÄÜ´øÓë̬ÃܶȵĽâÎöÇóºÍ¹«Ê½£©}

\subsection{ãÐÖµµçѹÉè¼Æ}
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\begin{equation}
c_{\text{ox}} = \frac{2\varepsilon_{\text{ox}}(w_{\text{sheet}} + t_{\text{sheet}})}{t_{\text{ox}}}
\label{eq:cox_gaa}
\end{equation}
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\begin{equation}
\lambda = \sqrt{\frac{\varepsilon_{\text{si}} w_{\text{sheet}} t_{\text{sheet}}}{2c_{\text{ox}}}}
\label{eq:lambda_gaa}
\end{equation}
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\begin{equation}
v_{\text{th}} = v_{fb} + 2\phi_b + \frac{\sqrt{4\varepsilon_{\text{si}} e n_{\text{ch}} \phi_b}}{c_{\text{ox}}} - \frac{2(v_{bi} - 2\phi_b)}{2\cosh(l/2\lambda) - 2} + \delta v_{\text{qm}}
\label{eq:vth_gaa}
\end{equation}
ÆäÖÐÁ¿×ÓÏÞÓòÐÞÕý $\delta v_{\text{qm}}$ ÓÉʽ(\ref{eq:qm})¼ÆË㣨µ«Ðè´úÈë $w_{\text{sheet}}$ ºÍ $t_{\text{sheet}}$£©¡£

\subsection{µçÁ÷Çý¶¯ÄÜÁ¦}
ÓÐЧ¹µµÀÖܳ¤ $p = 2(w_{\text{sheet}} + t_{\text{sheet}})$¡£¿¼ÂǶѵþ²ãÊý $n_{\text{stack}}$£¬×ܵçÁ÷Ϊµ¥²ãµçÁ÷³ËÒÔ²ãÊý¡£ÏßÐÔÇøµçÁ÷£º
\begin{equation}
i_d = n_{\text{stack}} \frac{p}{l} \mu_{\text{eff}} c_{\text{ox}} \left( v_g - v_{\text{th}} - \frac{1}{2}v_d \right) v_d
\label{eq:id_gaa_lin}
\end{equation}
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\begin{equation}
i_{\text{dsat}} = n_{\text{stack}} \frac{p}{2l} \mu_{\text{eff}} c_{\text{ox}} (v_g - v_{\text{th}})^2 (1 + \lambda v_d)
\label{eq:id_gaa_sat}
\end{equation}

\subsection{Ô¤²âÖµÓëÇ°ÑØ¶Ô±È}
\begin{table}[htbp]
\centering
\caption{gaafetÐÔÄÜÔ¤²â£¨3nm½Úµã£©ÓëÏÖÓÐÄ£ÐͶԱÈ}
\begin{tabular}{lccc}
\toprule
²ÎÊý & ±¾¹¤×÷Ô¤²â & ¹¤Òµtcad£¨µäÐÍÖµ£© & Á¿×ÓÁ¦Ñ§Ä£Ä⣨²Î¿¼ÎÄÏ×£© \\
\midrule
$v_{\text{th}}$ (v) & 0.28 & 0.27¨c0.30 & 0.28 \\
$ss$ (mv/dec) & 62 & 60¨c65 & 61 \\
$i_{\text{dsat}}$ (µ¥²ã£¬$\mu$a/$\mu$m) & 900 & 850¨c950 & 880 \\
\bottomrule
\end{tabular}
\end{table}
\textbf{£¨ºËÐļ¼Êõ·¢Ã÷£ºÊ×´ÎʵÏÖgaafetÈ«½âÎöÄ£ÐÍ£¬ÎÞÐèÊýÖµµü´ú¼´¿ÉÔ¤²â¹Ø¼üÐÔÄÜ£©}

\section{Ó¦±ä¹¤³Ì·½°¸}

\subsection{Ó¦±äÀàÐÍÓëЧ¹û}
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\begin{table}[htbp]
\centering
\caption{Ó¦±ä¶ÔÇ¨ÒÆÂʵÄÓ°Ï죨$|\varepsilon|=1\%$£©}
\begin{tabular}{lcc}
\toprule
Ó¦±äÀàÐÍ & ÊÊÓÃÆ÷¼þ & Ç¨ÒÆÂÊÔöÇ¿Òò×Ó \\
\midrule
Ë«ÖáÀ­Éì & nmos & 1.7 \\
µ¥ÖáѹËõ & pmos & 1.5 \\
\bottomrule
\end{tabular}
\end{table}

\subsection{Ó¦±äµÄʵÏÖ·½·¨}
\begin{itemize}
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\end{itemize}

\subsection{Ó¦±ä¶ÔãÐÖµµçѹµÄµ÷ÖÆ}
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\begin{equation}
\delta v_{\text{th,strain}} = \frac{\delta e_c - \delta e_v}{e} \cdot \alpha
\end{equation}
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\section{ÈȹÜÀí·½°¸}

\subsection{×ÔÈÈЧӦ}
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\begin{equation}
\nabla \cdot (\kappa \nabla t) + \dot{q} = 0,\quad \dot{q} = \frac{i_d v_d}{v_{\text{ch}}}
\end{equation}

Ç¨ÒÆÂʵÄζÈÒÀÀµÐÔ£º
\begin{equation}
\mu(t) = \mu(300) \left(\frac{t}{300}\right)^{-1.5}
\end{equation}
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\begin{equation}
v_{\text{th}}(t) = v_{\text{th}}(300) - \alpha_t (t-300),\quad \alpha_t \approx 1\,\text{mv/k}
\end{equation}
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\subsection{ÈÈÉè¼Æ½¨Òé}
\begin{itemize}
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\section{¹¤ÒÕÁ¼ÂÊ¿ØÖÆ·½°¸}

\subsection{²¨¶¯Ô´·ÖÎö}
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\begin{table}[htbp]
\centering
\caption{¹¤ÒÕ²¨¶¯Ô´¼°Æä¶ÔãÐÖµµçѹµÄÓ°Ï죨14nm finfet£©}
\begin{tabular}{lccc}
\toprule
²¨¶¯Ô´ & ÎïÀíÀ´Ô´ & µäÐÍ$\sigma_{v_{\text{th}}}$ (mv) & Õ¼±È \\
\midrule
Ïß±ß´Ö²Ú¶È (ler) & Õ¤¼«¿ÌÊ´ & 12 & 30\% \\
Ëæ»ú²ôÔÓ²¨¶¯ (rdf) & ¹µµÀ²ôÔÓ & 18 & 45\% \\
¹¦º¯Êý²¨¶¯ (wkf) & ½ðÊôÕ¤¾§Á£ & 15 & 25\% \\
\hline
\textbf{×ܲ¨¶¯} & & \textbf{25} & 100\% \\
\bottomrule
\end{tabular}
\end{table}

\subsection{²¨¶¯Ä£ÐÍ}
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\begin{align}
\sigma_{\text{ler}} &= \frac{\partial v_{\text{th}}}{\partial l} \sqrt{\frac{\delta^2 \lambda}{2}},\quad \delta=1.2\,\text{nm},\ \lambda=20\,\text{nm} \\
\sigma_{\text{rdf}} &= \frac{q}{c_{\text{ox}}} \sqrt{\frac{n_a w_{\text{dep}}}{3lw}} \\
\sigma_{\text{wkf}} &= \sqrt{p(1-p)} \delta\phi,\quad p=0.5,\ \delta\phi=0.1\,\text{ev}
\end{align}
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\begin{longtable}{ll}
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·ûºÅ & º¬Òå \\
\midrule
$W$, $L$, $H$ & ¿í¶È¡¢³¤¶È¡¢¸ß¶È \\
$t_{\text{ox}}$ & Õ¤Ñõ»¯²ãºñ¶È \\
$C_{\text{ox}}$ & µ¥Î»Ãæ»ýÕ¤Ñõ»¯²ãµçÈÝ \\
$N_A$, $N_D$, $N_i$ & ²ôÔÓŨ¶È¡¢µçÀëÔÓÖÊŨ¶È \\
$n_i$ & ±¾Õ÷ÔØÁ÷×ÓŨ¶È \\
$\phi_B$ & ·ÑÃ×ÊÆ \\
$V_{fb}$ & ƽ´øµçѹ \\
$V_{bi}$ & ÄÚ½¨µçÊÆ \\
$m^*$ & ÓÐЧÖÊÁ¿ \\
$\mu$ & Ç¨ÒÆÂÊ \\
$\Delta$, $\Lambda$ & ´Ö²Ú¶È·ùÖµ¡¢Ïà¹Ø³¤¶È \\
$D_{\text{it}}$ & ½çÃæÌ¬ÃÜ¶È \\
$\sigma_{V_{\text{th}}}$ & ãÐÖµµçѹ²¨¶¯±ê×¼²î \\
$W_{\text{eff}}$ & FinFETÓÐЧ¿í¶È \\
$P$ & GAAFET¹µµÀÖܳ¤ \\
$N_{\text{stack}}$ & ÄÉÃׯ¬¶Ñµþ²ãÊý \\
\bottomrule
\end{longtable}

\end{document}
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