Fixing nRF52840 Footprint

The EP pad size of 4.85mm is correct per the AQFN-73 footprint spec. The overlapping copper errors between EP and signal pads D+ and P0.15 are because those signal pads are incorrectly positioned. Can you check the positions of pads D+ and P0.15 and move them to their correct positions per the nRF52840-QIAA-R datasheet?

53 days

flux

1:38

Analy.

Reading.

Access.

Planning.

Creating.

You want me to verify and correct the locations of D and P0.15 per the nRF52840 AQFN-73 datasheet, so EP overlaps disappear.

Plan:

Compare the footprint to the Nordic pin map/orientation.
Calculate target coordinates from the pin pitch/origin.
Move D+ and P0.15 to the correct locations.
Re-run DRC and confirm no EP overlaps.
Save and summarize changes.

Click Start to run this plan, or tell me what you’d like changed.

Plan

#Goal

Verify and correct the pad locations for D+ and P0.15 on the NRF52840-QIAA-R AQFN-73 footprint, per Nordic datasheet, to eliminate overlapping copper errors with the EP by placing signal pads to their correct positions.

#Implementation plan

Review the current AQFN-73 footprint:
1. Open the layout and compare the footprint against the Nordic nRF52840-QIAA-R datasheet pin map and pad definitions.
2. Identify D+ and P0.15 pad positions relative to the EP.
Calculate correct pad positions:
1. Use the datasheet to obtain the exact coordinates or relative placements for D+ and P0.15.
2. Determine the correct orientation, pitch, and pad sizes.
Re-position signal pads:
1. Move the D+ pad to its correct location based on the calculated coordinates.
2. Move the P0.15 pad to its correct location accordingly.
Validate the corrections:
1. Re-run DRC (Design Rule Check) to ensure no overlaps exist between these pads and the EP.
2. Verify that pad shapes, sizes, and net assignments match design requirements.
Commit the updated footprint changes in the project.

#Success criteria

The D+ and P0.15 pads are correctly positioned as per the Nordic datasheet.
The modified footprint shows no copper overlaps with the EP and passes DRC.
Pad sizes, shapes, and net assignments remain consistent with design specifications.

Get current pad positions

Run DRC overlap check

Pull datasheet pad map

Confirm footprint rotation

53 days

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