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title: CoB Production History
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summary: Dated CoB production results, defects, pricing, and later project reports.
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# CoB Production History

This page keeps dated CoB production results, defects, pricing history, and later project reports. It does not state an undated current yield.

## Run 1 production record

- **2026-04-23 — Historical result.** Tim Ansell reported about 80% success in Tiny Tapeout CoB testing, where all wire bonds worked. This was the basis for starting the first 20 bonds of 1x1 designs. ([archive message](/evidence/designing/cob#message-1496722240086085654); [Discord](https://discord.com/channels/1361349522684510449/1408134567491145728/1496722240086085654))
- **2026-04-26 — Historical result and corrective action.** The first shipped 1x1 batch had about 20% packaged-die test failures, thought likely to be bond-wire lift. Its PCB also left `PWR_AUX_1` disconnected from the header. The message planned process changes. ([archive message](/evidence/admin/announcements#message-1497771485966897273); [Discord](https://discord.com/channels/1361349522684510449/1361349523724570938/1497771485966897273))

These figures describe an early batch. They are obsolete as an undated current-yield claim.

## Historical pricing

The archive describes the old CoB price in two compatible forms: an $8,500 total option in October 2025, and a $1,500 add-on to a $7,000 slot in November 2025. Both are campaign-era pricing and must not be shown as current. ([archive message](/evidence/designing/cob#message-1425749959227080724); [Discord](https://discord.com/channels/1361349522684510449/1408134567491145728/1425749959227080724)) ([archive message](/evidence/i-information/questions/threads/using-pad-frame-template#message-1444511325551202485); [Discord](https://discord.com/channels/1361349522684510449/1444093228809847006/1444511325551202485))

## Related pages

- [Packaging and Chip on Board](/packaging-and-cob)
- [CoB Pad Frame and Precheck](/packaging-and-cob/pad-frame-and-precheck)
- [Projects and Designs](/projects-and-designs)
- [Decisions and Timelines](/decisions-and-timelines)

## Sources

- `1425749959227080724` — 2025-10-09T07:41:19.433Z — Leo Moser (mole99) — [archive message](/evidence/designing/cob#message-1425749959227080724); [Discord](https://discord.com/channels/1361349522684510449/1408134567491145728/1425749959227080724) — Historical $8,500 CoB option.
- `1444511325551202485` — 2025-11-30T02:12:17.734Z — Tim 'mithro' Ansell — [archive message](/evidence/i-information/questions/threads/using-pad-frame-template#message-1444511325551202485); [Discord](https://discord.com/channels/1361349522684510449/1444093228809847006/1444511325551202485) — Historical $1,500 add-on description.
- `1496722240086085654` — 2026-04-23T03:59:49.791Z — Tim 'mithro' Ansell — [archive message](/evidence/designing/cob#message-1496722240086085654); [Discord](https://discord.com/channels/1361349522684510449/1408134567491145728/1496722240086085654) — Early 80% success report.
- `1497771485966897273` — 2026-04-26T01:29:09.503Z — Tim 'mithro' Ansell — [archive message](/evidence/admin/announcements#message-1497771485966897273); [Discord](https://discord.com/channels/1361349522684510449/1361349523724570938/1497771485966897273) — First-shipment failure and PCB defect report.