lecture13

lecture13 - 6.720J/3.43J Integrated Microelectronic Devices...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 6.720J/3.43J - Integrated Microelectronic Devices - Spring 2007 Lecture 13-1 Lecture 13 - p-n Junction March 7, 2007 Contents: 1. Ideal p-n junction in equilibrium 2. Ideal p-n junction out of equilibrium Reading assignment: del Alamo, Ch. 7, §§ 7.1, 7.2 (7.2.1, 7.2.2) Announcements: Quiz 1: March 13 , 7:30-9:30 PM; lec-tures #1-12 (up to SCR-type transport). Open book. Calculator required . Final Exam scheduled: May 23 , 1:30-3:30 PM. Cite as: Jesús del Alamo, course materials for 6.720J Integrated Microelectronic Devices, Spring 2007. MIT OpenCourseWare (http://ocw.mit.edu/), Massachusetts Institute of Technology. Downloaded on [DD Month YYYY]. 6.720J/3.43J - Integrated Microelectronic Devices - Spring 2007 Lecture 13-2 Key questions • What happens if you bring into intimate contact an n-type region and a p-type region? • What happens to the electrostatics of a p-n junction if one applies a bias accross? Cite as: Jesús del Alamo, course materials for 6.720J Integrated Microelectronic Devices, Spring 2007. MIT OpenCourseWare (http://ocw.mit.edu/), Massachusetts Institute of Technology. Downloaded on [DD Month YYYY]. 6.720J/3.43J - Integrated Microelectronic Devices - Spring 2007 Lecture 13-3 Motivation: pn junctions everywhere! Example: CMOS PMOS NMOS n + p + p + n + n + p + n p n Cite as: Jesús del Alamo, course materials for 6.720J Integrated Microelectronic Devices, Spring 2007. MIT OpenCourseWare (http://ocw.mit.edu/), Massachusetts Institute of Technology. Downloaded on [DD Month YYYY]. 6.720J/3.43J - Integrated Microelectronic Devices - Spring 2007 Lecture 13-4 1. Ideal p-n junction in equilibrium W Sp E Fn E Fp a) two semiconductors far apart E o E o W Sp W Sn E Fn E Fp b) two semiconductors just before contact E o E o W Sn E o q φ bi E F W Sn W Sp c) two semiconductors in intimate contact Cite as: Jesús del Alamo, course materials for 6.720J Integrated Microelectronic Devices, Spring 2007. MIT OpenCourseWare (http://ocw.mit.edu/), Massachusetts Institute of Technology. Downloaded on [DD Month YYYY]. 6.720J/3.43J - Integrated Microelectronic Devices - Spring 2007 Lecture 13-5 p n E o E o χ χ W Sn W Sp E c E c E F E F E v E v E o χ q φ bi W Sp E o E c χ W Sn E c E F qφ bi = W Sp − W Sn = ( E C − E F ) | x 0 − ( E C − E F ) | x 0 n o ( x 0) = kT ln n o ( x 0) Then: kT N D N A φ bi = ln 2 q n i E v E v Cite as: Jesús del Alamo, course materials for 6.720J Integrated Microelectronic Devices, Spring 2007....
View Full Document

This note was uploaded on 09/24/2010 for the course EECS 6.720J taught by Professor Jesúsdelalamo during the Spring '07 term at MIT.

Page1 / 18

lecture13 - 6.720J/3.43J Integrated Microelectronic Devices...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online