Neural Probes · A-Series (Polytrode & Tetrode)
2-Shank 64-Channel Probe, 5 mm
Sites clustered rather than spread — polytrode and tetrode groups a sorter can separate
Two mid-length shanks side by side, with sites staggered in two 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), 5 mm shanks (a common choice — 107 of 363), a 0.79 mm-deep site array (48th percentile), 314 sites/mm² (56th percentile) and a 0.49 mm³ neural interface (30th 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 22 package configurations, 4 of them microdrive-compatible. Silicon 15 µm thick. Z-coat available. Optical stimulation runs from a separate laser or LED source. Research use only.
SKU prb_ahc--a2x32_poly2_5mm_50s_200_177 · Neural Probes in the webstore
Specifications
| Channels | 64 |
|---|---|
| Shanks | 2 |
| Shank length | 5 mm |
| Site layout | Poly2 |
| Site area | 177 µm² |
| Site pitch | 23 µm |
| Vertical span | 788 µm |
| Substrate | Silicon |
|---|---|
| Site material | Iridium |
| Thickness | 15 µm |
| Neural interface volume | 0.488 mm³ (higher than 30% of 371 designs) |
| Site coverage density | 314.4 sites/mm² (higher than 56% of 371 designs) |
| Brain coverage density | 131.1 sites/mm³ (higher than 93% of 371 designs) |