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Specific Process Knowledge/Lithography: Difference between revisions

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*Graphene requires special treatment  
*Graphene requires special treatment  
| Any standard cleanroom material  
| Any standard cleanroom material  
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{|border="1" cellspacing="1" cellpadding="10" style="text-align:left;"
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|-style="background:silver; color:black"
!width="10%"|
!width="16%"| [[Specific Process Knowledge/Lithography/UVLithography|UV Lithography]]
!width="16%"| [[Specific Process Knowledge/Lithography/DUVStepperLithography|DUV Stepper Lithography]]
!width="16%"| [[Specific Process Knowledge/Lithography/EBeamLithography|E-beam Lithography]]
!width="16%"| [[Specific_Process_Knowledge/Imprinting|Nano Imprint Lithography]]
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|-style="background:WhiteSmoke; color:black"
!Generel description
|Pattern transfer via ultraviolet (UV) light
|Pattern transfer via deep ultraviolet (DUV) light
|Patterning by electron beam
|Pattern transfer via hot embossing (HE)
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|-style="background:LightGrey; color:black"
!Pattern size range
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~0.6 µm and up<br>
(resist type, thickness, and pattern dependent)
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~200 nm and up<br>
(pattern type, shape and pitch dependent)
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~12 nm - 1 µm<br>
(and larger at high currents)
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~20 nm and up
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|-style="background:WhiteSmoke; color:black"
!Resist type
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UV sensitive:
*AZ 5214E, AZ 4562, AZ MiR 701 (positive)
*AZ 5214E, AZ nLOF 2020, SU-8 (negative)
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DUV sensitive
*JSR KRF M230Y, JSR KRF M35G (positive)
*UVN2300-0.8 (negative)
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E-beam sensitive
*AR-P6200 CSAR, ZEP502A , PMMA (positive)
*HSQ, mr-EBL, AR-N 7520 (negative)
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Imprint polymers:
*Topas
*PMMA
*mr-I 7030R
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|-style="background:LightGrey; color:black"
!Resist thickness range
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~0.5 µm to 200 µm
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~50 nm to 2 µm
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~30 nm to 1 µm
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~ 100 nm to 2 µm
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|-style="background:WhiteSmoke; color:black"
!Typical exposure time
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10 s - 3 min pr. wafer using mask aligners<br>
10 min - 5 hours pr. wafer using maskless aligners
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Process dependent:
*Pattern
*Pattern area
*Dose
Throughput is up to 60 wafers/hour
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Process dependent:
*Dose, Q [µC/cm<sup>2</sup>]
*Beam current, I [A]
*Pattern area, a [cm<sup>2</sup>]
time [s] = Q*a/I
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Process dependent, including heating/cooling rates
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|-style="background:LightGrey; color:black"
!Substrate size
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*chips down to 3 mm x 3 mm
*50 mm wafers
*100 mm wafers
*150 mm wafers
*200 mm wafers
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*100 mm wafers
*150 mm wafers
*200 mm wafers
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We have cassettes fitting:
*4 small samples (slit openings: 20mm, 12mm, 8mm, 4mm)
*6 wafers of 50 mm in size
*3 wafers of 100 mm in size
*1 wafer of 150 mm in size
*1 wafer of 200 mm in size
Only one cassette can be loaded at a time
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*small samples
*50 mm wafers
*100 mm wafers
*150 mm wafers 
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|-style="background:WhiteSmoke; color:black"
!'''Allowed materials'''
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Any standard cleanroom material
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Any standard cleanroom material
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Any standard cleanroom material, except:
*Materials that will degas
*Graphene requires special treatment 
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Any standard cleanroom material
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