Neural Probes · Matrix Array Series
Linear 3-Shank 32-Channel Probe, 8 mm
Silicon 3D probe platform — several 32-site 2D arrays, 64 to 256 channels, recording and stimulating
Three long shanks side by side, spread for lateral coverage across columns, with sites spread evenly down each, one per row, for a profile across depth. Among the 371 probe designs in the design space it is in the upper quartile: 32 sites (a common choice — 155 of 369), 8 mm shanks (67th percentile of the 366 measured), a 4.55 mm-deep site array (95th percentile), 3.85 sites/mm² (2nd percentile) and a 5.88 mm³ neural interface (99th percentile).
Large sites read a wider patch at lower impedance, suited to field potentials and multi-unit activity, spaced widely to span a structure rather than resolve within it. The long shanks reach deep targets.
Orders as a probe-plus-package assembly, in 19 package configurations, 2 of them microdrive-compatible. Built for the Matrix Array platform: this 2D array installs in a Matrix package slot and is not assembled in other packages. Silicon 50 µm thick. Z-coat available. Research use only.
SKU prb_mtx--m3x10_8mm_500_900_703 · Neural Probes in the webstore
Specifications
| Platform | Matrix Array (one 2D array per platform slot) |
|---|---|
| Channels | 32 |
| Shanks | 3 |
| Shank length | 8 mm |
| Shank separation | 899 µm |
| Site area | 703 µm² |
| Site pitch | 500 µm |
| Vertical span | 4553 µm |
|---|---|
| Substrate | Silicon |
| Site material | Iridium |
| Thickness | 50 µm |
| Neural interface volume | 5.880 mm³ (higher than 99% of 371 designs) |
| Site coverage density | 3.8 sites/mm² (higher than 2% of 371 designs) |
| Brain coverage density | 5.4 sites/mm³ (higher than 3% of 371 designs) |