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--- components [2012/06/21 05:40] – mcmaster
+++ components [2013/10/20 14:59] (current) – external edit 127.0.0.1
@@ Line 71: / Line 71: @@
 ====== Substrate ======
-The majority of the mass of the die. Some sort of SiO2 varient. Generally fairly boring and not much worth noting.
+The majority of the mass of the die. Usually just a large block of silicon. The surface of a CMOS wafer is typically oriented along the <100> direction, many bipolar devices use <111>. <110> wafers are usually only seen in specialized applications such as MEMS.
+Generally fairly boring and not much worth noting.
 ====== References ======