If you're interested in this sort of thing, there is a great class at RPI which has its lecture slides available: http://security.cs.rpi.edu/courses/hwre-sprin

If you're interested in this sort of thing, there is a great class at RPI which has its lecture slides available: http://security.cs.rpi.edu/courses/hwre-spring2014/ http://security.cs.rpi.edu/courses/hwre-spring2014/ The slides for lecture 4 (http://security.cs.rpi.edu/courses/hwre-spring2014/Lecture4_Layout.pdf http://security.cs.rpi.edu/courses/hwre-spring2014/Lecture4_...) shows what various types of components (such as laser-trimmed resistors) look like on a die.