fix(tqfp): tqfp44 defaults to 0.8mm pitch and 0.55mm pad width - #793
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zkasuran wants to merge 1 commit into
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fix(tqfp): tqfp44 defaults to 0.8mm pitch and 0.55mm pad width#793zkasuran wants to merge 1 commit into
zkasuran wants to merge 1 commit into
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TQFP-44 is a 10x10mm 0.8mm-pitch package (JEDEC MS-026 BBA), the same pitch and pad width as TQFP-32. Its defaults were grouped with the 0.5mm-pitch parts (48/64/100), so `tqfp44` produced a 0.5mm pitch with 0.30mm pad width. That matches no real TQFP-44 and drifts far from the KiCad footprint. Move num_pins 44 into the 0.8mm-pitch, 0.55mm-pad case alongside 32. With the fix, tqfp44_w10 matches KiCad TQFP-44_10x10mm_P0.8mm to 0.03% courtyard diff and 0% pad-area diff. Adds a kicad-parity test and guards the corrected defaults in the existing tqfp44_w10 test. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What
TQFP-44 is a 10x10mm 0.8mm-pitch package (JEDEC MS-026 BBA), the same pitch and pad width as TQFP-32.
src/fn/tqfp.tsgroupedcase 44with the 0.5mm-pitch parts (48/64/100), sotqfp44came out at 0.5mm pitch with 0.30mm pad width. That matches no real TQFP-44 and drifts far from the KiCad footprint.This moves
num_pins44 into the same pitch and pad-width case as 32 (0.8mm pitch, 0.55mm pad width). Pad length was already 1.475mm and is unchanged.Closes #792.
Verification
tqfp44_w10vs KiCadTQFP-44_10x10mm_P0.8mm: courtyard diff 0.03%, pad-area diff 0.00%. That is the same parity bar the tqfp32/64/100 tests hold (< 0.5%).tests/kicad-parity/tqfp44_kicad_parity.test.tswith pcb and boolean-difference svg snapshots.tqfp44_w10test to assert the corrected 0.55mm pad width and a 44-pad count.bun run buildandbunx biome format .are clean.AI assistance
AI (Claude, Anthropic) was used to write this change. Verified locally before submitting: the new tqfp44 kicad-parity test (0.03% courtyard, 0% pad area vs KiCad), the tqfp32/48/64/100 parity tests,
bun run build, plusbunx biome format .. I own the change and will address review feedback.