Neural Probes · A-Series (Polytrode & Tetrode)
Tetrode 4-Shank 16-Channel Probe, 3 mm
Sites clustered rather than spread — polytrode and tetrode groups a sorter can separate
Four short shanks side by side, closely spaced for coverage within one structure, with sites grouped in tetrodes at intervals, for unit isolation at set depths. Among the 371 probe designs in the design space it sits at the bottom: 16 sites (a common choice — 84 of 369), 3 mm shanks (a common choice — 37 of 363), a 0.05 mm-deep site array (5th percentile), 695 sites/mm² (73rd percentile) and a 0.27 mm³ neural interface (9th 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 short shanks suit superficial targets.
Orders as a probe-plus-package assembly, in 25 package configurations, 2 of them microdrive-compatible. Silicon 15 or 50 µm thick. Z-coat available. Optical stimulation runs from a separate laser or LED source. Research use only.
SKU prb_ahc--a4x1_tet_3mm_150_121 · Neural Probes in the webstore
Specifications
| Channels | 16 |
|---|---|
| Shanks | 4 |
| Shank length | 3 mm |
| Shank separation | 150 µm |
| Site layout | Tetrode |
| Site area | 121 µm² |
| Site pitch | 18 µm |
| Vertical span | 46 µm |
|---|---|
| Substrate | Silicon |
| Site material | Iridium |
| Thickness | 15, 50 µm |
| Neural interface volume | 0.272 mm³ (higher than 9% of 371 designs) |
| Site coverage density | 695.3 sites/mm² (higher than 73% of 371 designs) |
| Brain coverage density | 58.8 sites/mm³ (higher than 64% of 371 designs) |