Neural Probes · A-Series (Polytrode & Tetrode)
6-Shank 128-Channel Probe, 10 mm
Sites clustered rather than spread — polytrode and tetrode groups a sorter can separate
Six long shanks side by side, closely spaced for coverage within one structure, 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: 128 sites (96th percentile), 10 mm shanks (a common choice — 79 of 363), a 0.71 mm-deep site array (38th percentile), 172 sites/mm² (45th percentile) and a 0.94 mm³ neural interface (67th 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 14 package configurations, 3 of them microdrive-compatible. Silicon 50 µm thick. Z-coat available. Optical stimulation runs from a separate laser or LED source. Research use only.
SKU prb_ahc--a6x21_poly2_10mm_50_200_160 · Neural Probes in the webstore
Specifications
| Channels | 128 |
|---|---|
| Shanks | 6 |
| Shank length | 10 mm |
| Shank separation | 200 µm |
| Site layout | Poly2 |
| Site area | 160 µm² |
| Site pitch | 25 µm |
| Vertical span | 715 µm |
|---|---|
| Substrate | Silicon |
| Site material | Iridium |
| Thickness | 50 µm |
| Neural interface volume | 0.936 mm³ (higher than 67% of 371 designs) |
| Site coverage density | 172.0 sites/mm² (higher than 45% of 371 designs) |
| Brain coverage density | 136.7 sites/mm³ (higher than 93% of 371 designs) |