Neural Probes · A-Series (Polytrode & Tetrode)
2-Shank 128-Channel Probe, 10 mm
Sites clustered rather than spread — polytrode and tetrode groups a sorter can separate
Two long shanks side by side, spread for lateral coverage across columns, with sites staggered in four 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 0.33 mm-deep site array (19th percentile), 444 sites/mm² (64th percentile) and a 0.57 mm³ neural interface (46th 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 15 µm thick. Z-coat available. Optical stimulation runs from a separate laser or LED source. Research use only.
SKU prb_ahc--a2x64_poly4_10mm_20_800_100 · Neural Probes in the webstore
Specifications
| Channels | 128 |
|---|---|
| Shanks | 2 |
| Shank length | 10 mm |
| Shank separation | 800 µm |
| Site layout | Poly4 |
| Site area | 97 µm² |
| Site pitch | 20 µm |
| Vertical span | 331 µm |
|---|---|
| Substrate | Silicon |
| Site material | Iridium |
| Thickness | 15 µm |
| Neural interface volume | 0.570 mm³ (higher than 46% of 371 designs) |
| Site coverage density | 443.6 sites/mm² (higher than 64% of 371 designs) |
| Brain coverage density | 224.6 sites/mm³ (higher than 99% of 371 designs) |