Neural Probes · Matrix Array Series
Linear 4-Shank 32-Channel Probe, 2 mm
Silicon 3D probe platform — several 32-site 2D arrays, 64 to 256 channels, recording and stimulating
Four short 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 mid-range: 32 sites (a common choice — 155 of 369), 2 mm shanks (8th percentile of the 366 measured), a 1.44 mm-deep site array (64th percentile), 18 sites/mm² (6th percentile) and a 1.66 mm³ neural interface (85th percentile).
Small sites read a local patch at higher impedance, sharpening single-unit isolation, spaced widely to span a structure rather than resolve within it. The short shanks suit superficial 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--m4x8_2mm_200_400_177 · Neural Probes in the webstore
Specifications
| Platform | Matrix Array (one 2D array per platform slot) |
|---|---|
| Channels | 32 |
| Shanks | 4 |
| Shank length | 2 mm |
| Shank separation | 400 µm |
| Site area | 177 µm² |
| Site pitch | 200 µm |
| Vertical span | 1435 µm |
|---|---|
| Substrate | Silicon |
| Site material | Iridium |
| Thickness | 50 µm |
| Neural interface volume | 1.662 mm³ (higher than 85% of 371 designs) |
| Site coverage density | 18.3 sites/mm² (higher than 6% of 371 designs) |
| Brain coverage density | 19.3 sites/mm³ (higher than 12% of 371 designs) |