# Germanium Purification Invented by [[Gordon Teal]] at [[Bell Labs]] * Enabled * [[Transistors]] * Enabled By * [[Crystal chemistry]] <!-- #case-study/technology --> [Web URL for this note](http://notes.benjaminreinhardt.com/Germanium+Purification) [Comment on this note](http://via.hypothes.is/http://notes.benjaminreinhardt.com/Germanium+Purification) <!-- {BearID:A7D91097-BF07-4454-A3D5-7DA2FEFFA3F5-88049-0007B4BBA675A2FE} -->