Equipment Benchmarking Example for Mid-Volume/High-Mix Pick and Place
Our final example is for a mid-volume assembler dealing with a high component mix. Here are the details:
- Annual board requirement: 19,500
- Unique components per board: 89
- Placements per board: 213
- Board length: 12"
- Board width: 10"
- Minimum size component: 0201
- Maximum size component: BGA208 (23mm X 23mm)
- Fine pitch requirement: 0.050" Ball Pitch BGA 208
A machine's ability to hold multiple matrix tray parts will best accommodate the production need:
| PCB Requirement | Equipment Data | |
| Feeder Slots | PCB Example 03 | Model: MC-388 |
| Feeder Slots Required | 90 (81-8mm, 9-tube) | 256-8mm slots |
| Tube/Stick Parts | 8 | Avail (subtract 9 slots per 10) |
| Matrix Tray Parts | 4 | 3 to 6 avail., full JEDEC location |
| Component Handling | ||
| Smallest Part | 0201 | 01005 (with nozzle) |
| Largest Part | 23 mm x 23 mm | 100 mm x 150 mm |
| Smallest lead pitch | 0.050" | 0.012" |
| Board Handling | ||
| Board Size Minimum | 12" x 10" | 2" x 2" |
| Board Size Maximum | 12.5" x 47" with conveyor 12.5" x 43" without conveyor (It would be 16" instead of 12.5" without the matrix trays) |
|
| Placement Speed Required | ||
| Board CPH Requirement | 2556 cph | 7350 cph (manufacturer's spec of 10,500 de-rated 30%) |
(View the pick and place machine used in this example.)
