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Unformatted text preview: 1 MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Electrical Engineering and Computer Science 6.012 ELECTRONIC DEVICES AND CIRCUITS Problem Set No. 3 Issued: September 19, 2001 Due: September 26, 2001 Reading Assignments: Lecture 6 (9/23/01) - Chap. 7 (7.1,7.2) Lecture 7 (9/25/01) - Chap. 7 (7.3, 7.4.1a) Lecture 8 (9/30/01) - Chap. 8 (8.1) Lecture 9 (10/2/01) - Chap. 8 (8.2.1a) Lecture 10 (10/7/01) - Chap. 7 (7.5 to end [good quiz review]) The first hour exam is scheduled for Wednesday night, October 8, from 7:30 to 9:30 pm in Room 34-101. Please let me know as soon as possible (by e-mail) if you have a conflict so we can resolve it as painlessly as possible. The exam is closed book and will cover the material through 9/26/01 and Problem Set #4 (through p-n diodes). Problem 1 - This problem concerns a bar of p-type silicon, N A = 10 17 cm-3 , irradiated on its -2 -1 left end with a uniform electron beam having an electron flux of 10 19 cm s as illustrated below. * As shown, the sample is 100 µm long and has an ohmic contact on its right end; this contact is connected to the electron source to complete the circuit as indicated. In this sample the hole mobility, µ...
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- Spring '10
- 100 µm, e– e– e–, Massachusetts Institute of Technology Department of Electrical Engineering and Computer Science