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Specific Process Knowledge/Thermal Process/Dope with Phosphorus: Difference between revisions

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==Doping profile after Phosphorus Predep process==
==Doping profile after Phosphorus Predep process==
" Result from GreenBelt, @Danchip,Jan 2015"
====Process parameters====
'''Recipe:'''  POCL900
'''Temperature:''' 900 °C
'''Time:''' 15 min
'''Anneal:''' 20 min in N<sub>2</sub>
After removing the oxide in BHF the wafers were oxidized in Phosphor Drive in Furnace (A3) using DRY1050 at 1050°C for 70 min without further annealing in N<sub>2</sub>. Results are listed in the table below:
{| border="2" cellpadding="2" cellspacing="1" style="text-align:center;"
|+ '''Measurements after phosphorus predeposition'''
|-
!
! colspan="1" | Afer predeposition
! colspan="2" | After Oxidation
|-
! width="130" | Test date
! width="130" | Sheet resistance [&Omega;/sq]
! width="130" | Oxide thickness [nm]
! width="130" | Sheet resistance [&Omega;/sq
|-
! Aug2012
| 48
| 93.1
| 41.8
|-
! Jan2013
| 50.5
| 91.3
| 55.6
|-
! Aug2013
| 58
| 91,8
| 41,8
|-
! Jan2014
| 54.1
| 93.3
| 33.8
|-
! Jan2015
| 50.8
| 94.2
| 39.4
|-
|}
One wafer from Jan2015 was analyzed with SIMS and the profiled is shown on the graph below:
''Result from Trine Holm Christensen, @Space, Feb. 2015''