Neural Probes · Matrix Array Series
Linear 4-Shank 32-Channel Probe, 5 mm
Silicon 3D probe platform — several 32-site 2D arrays, 64 to 256 channels, recording and stimulating
Four mid-length 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), 5 mm shanks (a common choice — 107 of 363), a 1.44 mm-deep site array (64th percentile), 18 sites/mm² (5th percentile) and a 1.67 mm³ neural interface (86th 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 mid-length shanks reach structures a few millimetres down.
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_5mm_200_400_413 · Neural Probes in the webstore
Specifications
| Platform | Matrix Array (one 2D array per platform slot) |
|---|---|
| Channels | 32 |
| Shanks | 4 |
| Shank length | 5 mm |
| Shank separation | 400 µm |
| Site area | 413 µm² |
| Site pitch | 200 µm |
| Vertical span | 1438 µm |
|---|---|
| Substrate | Silicon |
| Site material | Iridium |
| Thickness | 50 µm |
| Neural interface volume | 1.673 mm³ (higher than 86% of 371 designs) |
| Site coverage density | 18.1 sites/mm² (higher than 5% of 371 designs) |
| Brain coverage density | 19.1 sites/mm³ (higher than 11% of 371 designs) |