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, closely spaced for coverage within one structure, 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 0.4 mm-deep site array (26th percentile), 126 sites/mm² (37th percentile) and a 0.51 mm³ neural interface (32nd percentile).
Large sites read a wider patch at lower impedance, suited to field potentials and multi-unit activity, spaced for a laminar profile. 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_50_200_703 · 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 | 200 µm |
| Site area | 703 µm² |
| Site pitch | 50 µm |
| Vertical span | 403 µm |
|---|---|
| Substrate | Silicon |
| Site material | Iridium |
| Thickness | 50 µm |
| Neural interface volume | 0.510 mm³ (higher than 32% of 371 designs) |
| Site coverage density | 126.0 sites/mm² (higher than 37% of 371 designs) |
| Brain coverage density | 62.7 sites/mm³ (higher than 68% of 371 designs) |