Neural Probes · A-Series (Polytrode & Tetrode)
2-Shank 64-Channel Probe, 8 mm
Sites clustered rather than spread — polytrode and tetrode groups a sorter can separate
Two long shanks side by side, closely spaced for coverage within one structure, with sites staggered in three columns so neighbouring sites see the same units. Among the 371 probe designs in the design space it is mid-range: 64 sites (a common choice — 68 of 369), 8 mm shanks (67th percentile of the 366 measured), a 0.29 mm-deep site array (15th percentile), 716 sites/mm² (78th percentile) and a 0.32 mm³ neural interface (13th 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 long shanks reach deep targets.
Orders as a probe-plus-package assembly, in 23 package configurations, 4 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--a2x32_poly3_8mm_25s_250_177 · Neural Probes in the webstore
Specifications
| Channels | 64 |
|---|---|
| Shanks | 2 |
| Shank length | 8 mm |
| Shank separation | 250 µm |
| 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 | 0.319 mm³ (higher than 13% of 371 designs) |
| Site coverage density | 716.4 sites/mm² (higher than 78% of 371 designs) |
| Brain coverage density | 200.5 sites/mm³ (higher than 96% of 371 designs) |