PCB Revision Witness Visual Diff v0.3

Board-space overlay for v0.2 review-priority findings. This is a visual review aid only, not electrical validation, DFM/DRC/ERC replacement, inspection replacement, malicious-intent proof, or production board signoff.

PCB Revision Witness Visual Diff v0.3 Board-space overlay: changed regions are review aids, not electrical or manufacturing signoff. U1 C1 J1 R5 1 2 3 5 6 7 1 HIGH: R5 added: 0R on GND / RESET_BOOT Nets: GND, RESET_BOOT added passive component; 0-ohm bridge / jumper value 2 MEDIUM: USB_D_P routing changed Nets: USB_D_P trace layer set changed ['F.Cu'] -> ['B.Cu', 'F.Cu'];... 3 MEDIUM: RESET_BOOT routing changed Nets: RESET_BOOT trace layer set changed [] -> ['F.Cu']; debug/program... 4 LOW: New net inventory entry: DEBUG_BRIDGE Nets: DEBUG_BRIDGE new net label in candidate; debug/programming/control... 5 LOW: C1 changed: 100nF -> 1uF Nets: 3V3, GND component value substitution; coordinate drift 2.220... 6 LOW: 3V3 routing changed Nets: 3V3 power/ground net 7 LOW: GND routing changed Nets: GND power/ground net Priority colors HIGH MEDIUM LOW blue F.Cu route purple B.Cu/via route gray dashed reference

Linked Review Table

RankPriorityScoreFindingNetsReasons
1 HIGH 100 R5 added: 0R on GND / RESET_BOOT GND, RESET_BOOT added passive component; 0-ohm bridge / jumper value; touches debug/programming/control net; touches power/ground rail; bridges sensitive net to rail
2 MEDIUM 67 USB_D_P routing changed USB_D_P trace layer set changed ['F.Cu'] -> ['B.Cu', 'F.Cu']; new vias on net: 2; connector-adjacent route change; external interface net
3 MEDIUM 60 RESET_BOOT routing changed RESET_BOOT trace layer set changed [] -> ['F.Cu']; debug/programming/control net
4 LOW 40 New net inventory entry: DEBUG_BRIDGE DEBUG_BRIDGE new net label in candidate; debug/programming/control-like name
5 LOW 33 C1 changed: 100nF -> 1uF 3V3, GND component value substitution; coordinate drift 2.220 mm; power/ground net adjacency
6 LOW 28 3V3 routing changed 3V3 power/ground net
7 LOW 28 GND routing changed GND power/ground net
Claim boundary: Visual review aid only; not electrical validation, DFM/DRC/ERC replacement, X-ray/inspection replacement, proof of malicious intent, or production board signoff.