Wafer1557

Wafer from Cambridge. Received on 15/01/2020

This is an induced wafer.

Growth details

Here is a scan of the MBE growth sheet: W1557_Growth_sheet.pdf

Essentially the growth is:

GaAs	-	2nm
AlGaAs	-	33nm
GaAs	-	1um

Characterisation details

Here are characterisation data from the MBE growers (if available) - (insert scanned jpg here).

Here are some of our own characterisation data (insert jpg & details of measurement T, date, by whom, file location)

T = 0.25K, Processed and measured by Yoni

smb://infpwfs605.ad.unsw.edu.au/PHY/researchgroups/gqed/Yonatan/PhD/PhD Work/Projects/Epitaxial Aluminium/Cambridge/W15 batch/Comparison/Density.jpg

Different colours are different gate voltages:

 

smb://infpwfs605.ad.unsw.edu.au/PHY/researchgroups/gqed/Yonatan/PhD/PhD Work/Projects/Epitaxial Aluminium/Cambridge/W15 batch/W1557/Measurements/SdH/SdHC - A3.2 RUN 2/SdHCAll.jpg

Material usage

Here is a scanned copy of the wafer usage sheet from the measurement lab.

This should be updated regularly by whoever takes a piece of wafer.

Processing hints / tips

Please give details of processing that worked well for this wafer. Even a scan of a lab-book page, with details of contact resistances etc.