Specific Process Knowledge/Thermal Process/Furnace: Multipurpose annealing/Acceptance test

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The acceptance for the Multipurpose Anneal furnace was performed in November 2014 by ATV Technologie.



Recipe: "vr_dryOx_1000C_120min_150_5Wafer_D1_mit_Inliner_oPurgering.ATV"

Oxidation time: 80 min Oxidation temperature: 1050 oC O2 flow: 1 slm

The oxidation has been done with 150 mm wafer, and with 30 wafers in the furnace.

Wafer 4 (towards the door), wafer 16 and wafer 28 (towards the service area) were measured.


Mask Resist etch rate [nm/min] Silicon etch rate [µm/min] Trench width [µm] Under etch [µm] Silicon etch angle [oC]
2 µm 4 µm 10 µm 50 µm 200 µm 2 µm 4 µm 10 µm 50 µm 200 µm 2 µm 4 µm 10 µm 50 µm 200 µm 2 µm 4 µm 10 µm 50 µm 200 µm
Travka5 67.31 0.6 0.63 0.63 0.62 0.61 2.60 4,91 10.96 51.00 201.90
Travka10 63.94 0.57 0.59 0.59 0.58 0.61 2.32 4.60
Travka20 63.13 0.63 0.63 0.64 0.64 0.59
Travka35 59.63 0.57 0.60 0.61 0.61 0.55
Travka50 57.13 0.47 0.5 0.51 0.51 0.49
Travka65 57.88 0.41 0.41 0.42 0.42 0.43
Travka80 57.56 0.37 0.36 0.37 0.37 0.38
Common Temperature 20 degs, HBC 10 torr, Short funnel, with baffle & 5mm spacers