0p5x0p5-cob
About the 0p5x0p5-cob PCB
0p5x0p5-cob is an open source PCB design by wafer-space, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 14 × 16 mm, with 6 components from 3 distinct parts.
By type, the board carries 4 capacitors and 2 ICs.
From the project
Wire bonded chip on board PCB designs.
This repository serves as the primary workspace and documentation hub for wafer.space.
Our current padframe and wirebonding layouts follow the Tiny Tapeout convention of 74 pads. All ground (GND) connections are tied together in the Default Breakout COB package.
wafer.space completed its successful first run, delivering working chip-on-board (COB) packages to customers. The boards below are the actual COB parts that were wire-bonded and shipped as part of Run 1 — real silicon, packaged and ready to drop into a breakout motherboard.
0p5x0p5-cob bill of materials (BOM)
6 components, 3 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ~ | CONN-SMD_70P-P0.40_HCTL_HC-PBB40C-70DP-0.4V-02 | U101 |
| 1 | ~ | waferspace_p5xp5_padring | U102 |
| 4 | C_Small | C_0201_0603Metric | C101, C102, C104, C108 |
0p5x0p5-cob design files
The KiCad project lives in the wafer-space/chip-on-board-wire-bonded-pcbs repository on GitHub; these links point at the commit this page was built from.
0p5x0p5-cob: common questions
How big is the 0p5x0p5-cob PCB?
The 0p5x0p5-cob measures 14 × 16 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 0p5x0p5-cob?
6 components, from 3 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the 0p5x0p5-cob design files?
From the wafer-space/chip-on-board-wire-bonded-pcbs repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the 0p5x0p5-cob design in my own project?
Yes, under the terms of its Apache-2.0 license, which wafer-space chose for the repository.
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