substratesUltraSource is an expert at working with the following substrates:

Review our design guidelines on substrate material properties

Resistor Films

Resistors are a logical extension to thin film circuit designs and are easily integrated with circuitry using Tantalum Nitride or NiChrome films that are available for many applications and ranges. A wide variety of sheet resistivities is available for all high-value, close-tolerance, and tight space requirements.

Review our design guidelines on resistor layouts


Polyimide is used for a variety of applications in thin film processing, such as: solder masking, encapsulation of resistors, encapsulation of fine line geometries, and as a dielectric for multi-layer structures. UltraSource can fabricate thin film designs with polyimide up to five layers in total. Of these layers, two are a dielectric layer using polyimide, and three are metal conductor/resistor layers.

Polyimide Options

  • 1 - 6 µm ± 20%
  • Dielectric constant 3.0 - 3.5
  • Smaller feature sizes - .001"
  • Patterned using positive photo-resist
  • 5 - 25 µm ± 20%
  • Dielectric constant 3.0 - 3.5
  • Feature Sizes - .003"