Electrode Arrays

ECoG Surface Grids

NeuroNexus ECoG arrays are ultra-flexible surface grids with high recording resolution, designed to conform closely to the brain surface for electrocorticography.

  • Flexible and durable – Fabricated with our polymer MEMS technology, our ECoG arrays can conform to the brain surface.
  • Optimized array designs – Select from a variety of ECoG array designs featuring different site spacings, for different applications or animal models.
  • Versatile – Combine an ECoG array with a NeuroNexus penetrating array to establish concurrent surface and intracortical interfaces.

“The chronic version of the Micro-ECoG electrodes from NeuroNexus made our implant procedure on the cerebellum much easier and more reliable. Electrode breakage is no longer a problem.”

Dr. Mesut Sahin
New Jersey Institute of Technology

  • H-Series is a hybrid package introducing a flexible ribbon between the ECoG grid and connector PCB to allow flexible positioning of the connector on the head.
    • H16, HC16, HZ16
    • H32, HC32, HZ32
    • H64LP, H64, HC64, HZ64
    • H128LP
    • Smart and Intan Compatible
    • Activus
    • X3-H16, X3-H32

For information regarding connector package specifications, please visit product documentation here.

ECoG Arrays Properties

Arrays Thickness

15 µm

Electrode Site Material


Substrate Material


Cable Length

5, 6, 10, 20, 30 mm (varies by design)

Channel Count

16, 32, 64 (varies by design). Customizable up to 256.

Available Packages

H16, HC16, HZ16, H32, HC32, HZ32, H64, H64LP, HC64

Custom designs may use H128, H128LP, IH128, AVH128, AVIH128, H256, IH256, AVH256, AVIH256

NeuroNexus ECoG arrays are available for a wide variety of applications, including combined applications with penetrating probes and Matrix Arrays™.

If you are interested in a custom design, Contact us and tell us about your project.

Microelectrode Array Design Catalog


16-Channel 32-Channel 64-Channel
H16 H32 H64
HC16 HC32 H64LP
HZ16 HZ32 HZ64