01Site map and orientation
Release controlRelease coordinates, spacing, array orientation, anatomical references, active, reference and ground sites, and placement datums.
If it is missingThe array fits physically but places a channel or reference site in the wrong location.
02Channel routing
Release controlDefine channel names, trace paths, widths, clearances, crossovers, guards, dielectric, continuity, resistance, and isolation.
If it is missingChannel identity or electrical separation is lost between the site map and connector.
03Contact opening and material zones
Release controlMap printed contact, insulation opening, adhesive or hydrogel zone, backing, liner, and non-contact areas at every site.
If it is missingConverted layers reduce or shift the intended exposed contact geometry.
04Tail and connector
Release controlRelease conductor pitch, tail outline, bend zone, reinforcement, connector, cable, pin map, keying, and mating part.
If it is missingThe array cannot connect or route without stressing conductors or changing channel order.
05Registration and placement features
Release controlControl holes, slots, fiducials, edge datums, split lines, stretch limits, labels, and placement fixture references.
If it is missingSites shift relative to the OEM placement method during assembly or use preparation.
06Inspection and traceability
Release controlDefine site position, channel continuity, resistance method, isolation, connector map, visual defects, label, lot, and packaging.
If it is missingA channel defect or revision mismatch cannot be isolated after the array is packaged.