Litho BlackTM Coating
- peternable coating - etching or lift-off compatible
- Tailorable electrical resistivity – conductor or insulator
- 3 micron feature sizes
- Virtually any substrate – silicon, glass, metal and polymer
- Extremely low outgassing
- Compatibility with lithographic process chemicals (details upon request)
- Low emperature process
Specifications
Adhesion
Metals, glass, ceramics, polymers
Adhesion test (ref ECSS-Q-ST-13C)
Coated pieces withstand scotch tape test (3M853 Crystal Clear tape, strength of 13N per 25mm), without any evidence of coating removal.
Outgassing CVCM (%)
0.001
Outgassing RML (%)
0.2
Coating chemical content
Completely inorganic
Surface resistivity
≤2X10^6Ω/□
Cleanability
Coated pieces withstand cleaning with ethanol, IPA or acetone with no change in optical and technical characteristics. Magic Black™, Metal Velvet™ and Litho Black™ should be cleaned very gently."
Parts shape
3D
Humidity Resistance
MIL-C- 48497A
Certificates
ROHS, REACH, ISO 9001:2015, AS9100
Typical Properties
Operational wavelengths
EUV-NIR
Coating thickness
0.8-2
NA Emissivity
(3-10µm)
Working temperature (°C)
-269 to 380 (°C)
Working temperature (°K)
4 to 653 (°K)
Weight of coating (mg/cm²)
0.3 - 1.1 (mg/cm²)
moderate Abrasion resistance
(ref MIL-C-48497A)
Additional Details
Litho-BlackTM coating combines very high absorptance in the UV, VIS and IR wavelength bands and compatibility with photolithographic processing.
Composed exclusively of non-ferrous metals and non-ferrous metal oxides, Litho-BlackTM is completely inorganic and does not incorporate any organic materials or other chemicals and no such materials are used in the generation of the coatings.
Application examples:
1 – IR Pyroelectric Detector Array Wafers:
- More IR absorbed
- More heat into pyro-layer
- Higher detector sensitivity
2 – 1024 Element Uncooled Linear Array Wafer:
- Electrically insulating, low reflective coating covering the entire surface; leaving accurately sized windows over the elements
- Generates uniform element width for uniform element response by covering spare edges.
- Non-sensitive areas covered with low reflectivity coating for stray light suppression.
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