Neural Probes · Matrix Array Series
Buzsaki 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, closely spaced for coverage within one structure, with sites staggered near the edges of each tip — the Buzsaki layout for spike discrimination. Among the 371 probe designs in the design space it is in the lower quartile: 32 sites (a common choice — 155 of 369), 5 mm shanks (a common choice — 107 of 363), a 0.15 mm-deep site array (6th percentile), 327 sites/mm² (57th percentile) and a 0.37 mm³ neural interface (22nd percentile).
Small sites read a local patch at higher impedance, sharpening single-unit isolation, packed densely enough to track a unit across neighbouring sites. 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_buz_200 · 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 | 200 µm |
| Site layout | Buzsaki |
| Site area | 92 µm² |
| Site pitch | 20 µm |
| Vertical span | 151 µm |
|---|---|
| Substrate | Silicon |
| Site material | Iridium |
| Thickness | 50 µm |
| Neural interface volume | 0.374 mm³ (higher than 22% of 371 designs) |
| Site coverage density | 327.2 sites/mm² (higher than 57% of 371 designs) |
| Brain coverage density | 85.7 sites/mm³ (higher than 80% of 371 designs) |