ECE230A_Homework-1_Solution

ECE230A_Homework-1_Solution - ECE230A Fall 2009 Solution...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
ECE230A Fall 2009 Solution for Homework #1 1 1. Provide a photograph of yourself and a brief self-instruction (3~4 sentences about your background, current status and study/research interest) 2. Many III-V compound semiconductors such as GaAs and InP have two cleavage planes (110) and (1 ī 0). You can cut the crystal along these two planes to create mirror-like facets. This is how semiconductor lasers are fabricated (i.e. using the cleaved planes as reflecting mirrors). For a (211) GaAs wafer, find (a) the cleavage plane(s) that can cut through the (211) wafer with a mirror-like facet, (b) the plane that is normal to both the (211) plane and the cleavage plane(s) in (a). The planes you find in (a) and (b) are normally the “major flat” and “minor flat” of an otherwise circular wafer. ANS: (a) The two cleavage planes belong to the family of plane {110}. The planes of the {110} are ሺ110ሻ, ሺ11 0ሻ, ሺ101ሻ, ሺ101 ሻ, ሺ011ሻ,ሺ011 The cleavage plane (abc) with (211) wafer should be perpendicular to (211) plane as well.
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

ECE230A_Homework-1_Solution - ECE230A Fall 2009 Solution...

This preview shows document pages 1 - 2. Sign up to view the full document.

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