Specific Process Knowledge/Thin film deposition/Deposition of Silicon Oxide/Deposition of Silicon Oxide using PECVD: Difference between revisions
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=Recipes on PECVD3 for deposition of silicon oxides= | |||
{| border="1" cellspacing="2" cellpadding="2" colspan="3" | |||
|bgcolor="#98FB98" |'''Quality Controle (QC) for PECVD3 - oxide''' | |||
|- | |||
| | |||
*[http://labmanager.danchip.dtu.dk/d4Show.php?id=1402&mach=106 The QC procedure for PECVD3]<br> | |||
*[http://www.labmanager.danchip.dtu.dk/view_binary.php?type=data&mach=106 The newest QC data for PECVD3] | |||
{| {{table}} | |||
| align="center" | | |||
{| border="1" cellspacing="1" cellpadding="2" align="center" style="width:200px" | |||
! QC Recipe: | |||
! QCOXYD2 | |||
|- | |||
| SiH<sub>4</sub> flow | |||
|12 sccm | |||
|- | |||
|N<sub>2</sub>O flow | |||
|1420 sccm | |||
|- | |||
|N<sub>2</sub> flow | |||
|392 sccm | |||
|- | |||
|Pressure | |||
|700 mTorr | |||
|- | |||
|RF-power | |||
|150 W | |||
|- | |||
|} | |||
| align="center" valign="top"| | |||
{| border="2" cellspacing="1" cellpadding="2" align="center" style="width:500px" | |||
!QC limits | |||
!PECVD3 - OXIDE | |||
|- | |||
|Deposition rate | |||
|97 - 112 nm/min | |||
|- | |||
|Non-uniformity | |||
|<2.0 | |||
|- | |||
|Refractive index | |||
|1.467 - 1.474 | |||
|- | |||
|} | |||
|- | |||
|} | |||
|} | |||
===Recipes=== | |||
{| border="1" cellspacing="0" cellpadding="7" | |||
|- | |||
|Recipe name | |||
|SiH4 flow [sccm] | |||
|N<sub>2</sub>O flow [sccm] | |||
|N2 flow [sccm] | |||
|B2H6 flow [sccm] | |||
|PH3 flow [sccm] | |||
|Pressure [mTorr] | |||
|Power [W] | |||
|Description | |||
|- | |||
|LFSiO2 | |||
|12 | |||
|1420 | |||
|392 | |||
|0 | |||
|0 | |||
|700 | |||
|150 | |||
|New QC implemented in April 2016 | |||
|- | |||
|LFSiO | |||
|12 | |||
|1420 | |||
|392 | |||
|0 | |||
|0 | |||
|550 | |||
|60 | |||
|Uniform silicon oxide | |||
|- | |||
|1PBSG | |||
|17 | |||
|1600 | |||
|0 | |||
|135 | |||
|40 | |||
|500 | |||
|800LF | |||
|BPSG glass for waveguide cladding layer | |||
|} | |||
LF=Low Frequency | |||
===Expected results=== | |||
{| border="1" cellspacing="0" cellpadding="5" | |||
|- | |||
|Recipe name | |||
|Deposition rate [nm/min] | |||
|RI | |||
|Uniformity [%] | |||
|Stress | |||
|- | |||
|LFSiO2 | |||
|105nm/min | |||
|1.47 | |||
|~1.5% | |||
|'''400-402 MPa''' compressive stress '' by Anders Simonsen @nbi.ku.dk April 2016'' | |||
|- | |||
|LFSiO | |||
|~75 | |||
|~1.48 | |||
|<1 | |||
|not measured | |||
|- | |||
|1PBSG | |||
|~228 nm/min | |||
|. | |||
|~17% | |||
|not measured | |||
|} | |||
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=Recipes on PECVD3 for deposition of doped oxide= | |||
===Recipes=== | |||
{| border="1" cellspacing="0" cellpadding="7" | |||
|- | |||
|Recipe name | |||
|SiH<sub>4</sub> flow [sccm] | |||
|N<sub>2</sub>O flow [sccm] | |||
|N<sub>2</sub> flow [sccm] | |||
|GeH<sub>4</sub> flow [sccm] (scaled by 100) | |||
|B<sub>2</sub>H<sub>6</sub> flow [sccm] | |||
|PH<sub>3</sub> flow [sccm] | |||
|Pressure [mTorr] | |||
|Power [W] | |||
|Description | |||
|- | |||
|Core-Ge | |||
|17 | |||
|1600 | |||
|300 | |||
|300 | |||
|0 | |||
|0 | |||
|400 | |||
|600 LF | |||
|Process for germanium doped core layer developed by Haiyan Ou from DTU Photonics | |||
Annnealing: Anneal bond furnace, recipe "core1100" | |||
|- | |||
|Top-BPSG | |||
|17 | |||
|1600 | |||
|0 | |||
|0 | |||
|100 | |||
|40 | |||
|500 | |||
|800 LF | |||
|Process for PBSG top clading layer developed by Haiyan Ou from DTU Photonics | |||
Annnealing/oxidation: Anneal bond furnace, recipe "clad1000" | |||
|} | |||
===Expected results=== | |||
{| border="1" cellspacing="0" cellpadding="5" | |||
|- | |||
|Recipe name | |||
|Deposition rate [nm/min] | |||
|Refractive index | |||
|- | |||
|Core-Ge | |||
|~188 nm/min | |||
|~1.46969 | |||
|- | |||
|Top-BPSG | |||
|~248 nm/min | |||
|~1.458 | |||
|} | |||
=Recipes on PECVD2 for deposition of silicon oxides= | =Recipes on PECVD2 for deposition of silicon oxides= | ||
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