Neural Probes · A-Series (Isomura)
Tetrode/Linear 4-Shank 64-Channel Probe, 7.5 mm
Parallel shanks at a pitch fixed in fabrication — the same layer across several columns
Four long shanks side by side, spread for lateral coverage across columns, with tetrode groups along a linear run, isolation at set depths with a profile between. Among the 371 probe designs in the design space it is mid-range: 64 sites (a common choice — 68 of 369), 7.5 mm shanks (64th percentile of the 366 measured), a 1.09 mm-deep site array (56th percentile), 58 sites/mm² (22nd percentile) and a 1.2 mm³ neural interface (78th 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 22 package configurations, 5 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_ais--iso64_4x_tet_lin_7p5mm · Neural Probes in the webstore
Specifications
| Channels | 64 |
|---|---|
| Shanks | 4 |
| Shank length | 7.5 mm |
| Shank separation | 300 µm |
| Site layout | Tetrode/linear |
| Site area | 172 µm² |
| Site pitch | 18 µm |
| Vertical span | 1090 µm |
|---|---|
| Substrate | Silicon |
| Site material | Iridium |
| Thickness | 15, 50 µm |
| Neural interface volume | 1.204 mm³ (higher than 78% of 371 designs) |
| Site coverage density | 57.9 sites/mm² (higher than 22% of 371 designs) |
| Brain coverage density | 53.1 sites/mm³ (higher than 60% of 371 designs) |