Saint's Log

Semiconductor Substrates – Crystallagraphy

The previous post outlined my introduction to materials science with interest stemming from applications in microfabrication. Reading section 2.2 of Fabrication Engineering at the Micro- and Nanoscale left me curious for more information about crystal structures. A YouTube search for “face centered cubic structure” led me to the videos below, which proved sufficient for gaining a basic understanding of crystal structures.

Unit Cell Chemistry Simple Cubic, Body Centered Cubic, Face Centered Cubic Crystal Lattice Structures

How To Make Face Centered Cubic Crystal FCC By Using Ball and Stick Chemistry Molecular Models

Coordination number of Simple cubic, FCC, BCC and hcp lattice

Miller indices

These are also discussed in section 2.2 of the text and are explained in these videos. Interestingly, neither of the videos mentioned the fact that the plane notation also denotes a vector (from the origin) that is perpendicular to that plane!

Miller Indicies Practice Examples

Crystallographic Planes