To ensure successful completion of your PCBA project, we require specific documentation files that enable accurate and efficient assembly. This guide outlines the mandatory files and recommended documents needed for different order types.
File Submission Guidelines
Submission Methods:
- Upload files through our online portal
- Email files to Sales@raypcb.com
Email Requirements:
- Subject line format: “Files for Order Number [Your Order Number]”
- Include all required files as attachments
- Specify your order type (Consigned, Turn-Key, or Partial Turn-Key)
Required Files
1. Bill of Materials (BOM)
The BOM is a comprehensive inventory of all components needed for your PCB assembly. This critical document ensures we have complete part information for procurement and placement.
Accepted Formats: .xls, .xlsx, or .csv
For Consigned/Kitted Orders
Your BOM must include:
- Line Number – Sequential numbering for each component
- Quantity – Number of parts needed per assembly
- Reference Designator – Component identifier (e.g., R1, C5, U3)
- Part Number – Your internal part number
- Description – Clear component description
- Package Type – Surface Mount, Through-Hole, or Hybrid
For Turn-Key and Partial Turn-Key Orders
Include all above information plus:
- Manufacturer Name – Component manufacturer
- Manufacturer Part Number – Official MPN
- Distributor Part Number – Supplier-specific part number
2. Gerber Files
Standard RS-274X format Gerber files identical to those used for PCB fabrication are required for assembly reference.
Minimum Required Layers:
- Silkscreen Layer – Component outlines and reference designators
- Copper Layers – All conductive tracks and pads
- Solder Paste Layer – Stencil data for surface mount components
Important: Thoroughly review all Gerber files before submission. Our team will perform additional verification to ensure completeness and accuracy.
3. Centroid File (Pick and Place Data)
The Centroid file contains precise positioning data for automated assembly equipment. Also known as Insertion, Pick-N-Place, or XY Data file.
Required Information:
- Reference Designator – Component identifier
- X/Y Coordinates – Exact placement position
- Rotation Angle – Component orientation
- Board Side – Top or Bottom layer placement
Note: This file only includes surface-mount components. Through-hole components are placed manually using assembly drawings and silkscreen references.
Download Sample Centroid Template
Recommended Additional Documentation
While not mandatory, these supplementary documents significantly improve assembly quality and reduce potential errors:
Assembly Drawings
- Clear visual representation of component placement
- Special assembly notes and requirements
- Critical dimension callouts
Special Assembly Instructions
- Unique handling requirements
- Component orientation specifications
- Testing or programming instructions
Reference Images
- High-resolution photos of assembled PCBs
- Close-up images of critical areas
- Before/after assembly comparisons
File Review Process
Your Responsibility:
- Verify all files are complete and accurate
- Ensure file formats are compatible
- Include all required information for your order type
Our Quality Check:
- Comprehensive file review before assembly begins
- Cross-reference BOM with Gerber and Centroid data
- Flag any discrepancies or missing information
- Communicate with you to resolve issues promptly
Contact Information
File Submissions: Sales@raypcb.com
Questions or Support: Contact our technical team for assistance with file preparation or formatting requirements.
We’re committed to delivering flawless PCBA results and look forward to partnering with you on your project.