2” LEC GaP ingot produced by ITME (Instytut Technologii Materiałów Elektronicznych, Poland)
J. Václavík and D. Vápenka
CC BY 2.0
<a rel="nofollow" class="external free" href="https://www.epj-conferences.org/articles/epjconf/pdf/2013/09/epjconf_OAM2012_00028.pdf">https://www.epj-conferences.org/articles/epjconf/pdf/2013/09/epjconf_OAM2012_00028.pdf</a>