Neural Probes · Matrix Array Series
Buzsaki 4-Shank 32-Channel Probe, 1.5 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 staggered near the edges of each tip — the Buzsaki layout for spike discrimination. Among the 371 probe designs in the design space it is mid-range: 32 sites (a common choice — 155 of 369), 1.5 mm shanks (0th percentile of the 366 measured), a 1.15 mm-deep site array (58th percentile), 15 sites/mm² (5th percentile) and a 1.94 mm³ neural interface (91st 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 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_var_buz_600_1p5mm · Neural Probes in the webstore
Specifications
| Platform | Matrix Array (one 2D array per platform slot) |
|---|---|
| Channels | 32 |
| Shanks | 4 |
| Shank length | 1.5 mm |
| Shank separation | 600 µm |
| Site layout | Buzsaki |
| Site area | 92 µm² |
| Site pitch | 20 µm |
| Vertical span | 1151 µm |
|---|---|
| Substrate | Silicon |
| Site material | Iridium |
| Thickness | 50 µm |
| Neural interface volume | 1.938 mm³ (higher than 91% of 371 designs) |
| Site coverage density | 15.0 sites/mm² (higher than 5% of 371 designs) |
| Brain coverage density | 16.5 sites/mm³ (higher than 8% of 371 designs) |