Neural Probes · A-Series (Polytrode & Tetrode)
Single-Shank 32-Channel Probe, 5 mm
Sites clustered rather than spread — polytrode and tetrode groups a sorter can separate
A single mid-length shank with sites staggered in three columns so neighbouring sites see the same units. 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 0.29 mm-deep site array (15th percentile), 2,198 sites/mm² (97th percentile) and a 0.22 mm³ neural interface (4th 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 shank reaches structures a few millimetres down.
Orders as a probe-plus-package assembly, in 24 package configurations, 1 of them microdrive-compatible. Silicon 15 or 50 µm thick. Z-coat not available on this close-spaced poly layout. Optical stimulation runs from a separate laser or LED source. Research use only.
SKU prb_ahc--a1x32_poly3_5mm_25s_177 · Neural Probes in the webstore
Specifications
| Channels | 32 |
|---|---|
| Shanks | 1 |
| Shank length | 5 mm |
| Site layout | Poly3 |
| Site area | 177 µm² |
| Site pitch | 12 µm |
| Vertical span | 290 µm |
| Substrate | Silicon |
|---|---|
| Site material | Iridium |
| Thickness | 15, 50 µm |
| Neural interface volume | 0.217 mm³ (higher than 4% of 371 designs) |
| Site coverage density | 2,198.2 sites/mm² (higher than 97% of 371 designs) |
| Brain coverage density | 147.3 sites/mm³ (higher than 95% of 371 designs) |