From Breadboard to Finished Product


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Presentation from the 16th Open Source Hardware Users' Group Meeting held at the C4CC in London on the 23 February 2012. Event details at:

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From Breadboard to Finished Product

  1. 1. From breadboard to finished product A tale of “DFM” and “CEM”@OmerK / OSHUG 16 / 23 Feb 2012
  2. 2.
  3. 3. Concept ProductSpecification Production Design Compliance Revision Testing Prototype Test/Debug
  4. 4. Think different.
  5. 5. Functional Spec.odt
  6. 6. (cc) tiemposdelruido/flickr
  7. 7. Bill of Materials
  8. 8. README.txtdevice.max gerbers<date> - <revision>Files included: DEVICE.BOT - Copper bottom ... thruhole.tap - NC Drill file - Board outline is defined in top silkscreen, please route to border. - Please enlarge soldermask pads to fit your clearances as necessary - Please remove overlapping silkscreen segments on copper (i.e: silkscreen should not coverpads) - Mounting holes are specified as same pad size on drill and copper layers, these should benon-PTHFor questions please contact:<contact details>
  9. 9. Pay extra for “Electrical Testing”! (Because youre worth it)
  10. 10.
  11. 11. Lather, rinse, repeat.
  12. 12. Schematic Layout Files Bill of MaterialsAssembly DrawingTesting Procedure Packaging Info CEM
  13. 13. “● To supply all components and manufacture the PCB assembly as per your latest BOM, our price is: £X.XX each, based upon a single order for a quantity of X off units. Delivery to be X weeks from placement of order. Device programming or assembly testing are not included in the above pricing –dependent upon cycle times, these operations would be charged extra at a rate of £X perminute.●(We would recommend the bare PCB to be panellised 2 up with a routed/scored breakoutand 10mm scrap all round.)● One off charges of £X for PCB tooling and £X for SM stencil to be applied.● Pricing includes SM assembly, conventional PCB assembly and AOI inspection of all units.●All pricing is fixed for X days only from date of quotation.●Payment terms are strictly X% of total value with order with balance due X days from date of invoice,subject to prior acceptance of credit account.●All quoted prices exclude VAT and delivery and lead times indicated are standard.
  14. 14. (cc) seeedstudio/flickr
  15. 15.
  16. 16. Concept ProductSpecification Production Design Compliance Revision Testing Prototype Test/Debug
  17. 17.
  18. 18. Useful Stuff● Glossary of Acronyms Relevant to Electronics Manufacturing -● Thoughts, experiences on realizing an idea, Ihsan Kehribar -● Get Your PCBs Made, Dangerous Prototypes -● Hardware will cut you (video), Amanda Wozniak -● An example DFM checklist -
  19. 19. Thanks for listening!