Fusion PCBA Specification
- PCB Assembly Order Flow Chart
- Fusion PCBA Specification
| Fusion PCBA Specification | |||||||||||||
| Order Quantity | 1-8000pcs | ||||||||||||
| PCB Layers | 1-16 layers | ||||||||||||
| PCB Material | Rigid, Aluminum, Flexible Printed Circuit | ||||||||||||
Components | Seeed OPL | ||||||||||||
| Components from Official Suppliers 1). Components allowed import into Mainland China 2). In stock and the lead time is certain 3). No big quantity requirement for purchase | |||||||||||||
| Environmental standard | RoHS(Lead Free) | ||||||||||||
| Solder Type | Manual Soldering/Wave-Soldering+Surface Mounted Technology | ||||||||||||
| Board dimensions | Minimum Size: 1.0mm*1.0mm | ||||||||||||
| Maximum Size: 500mm*500mm | |||||||||||||
| Board Shape | Various Shapes | ||||||||||||
| PCB Design File Format | Gerber File | ||||||||||||
BOM (Bill of Materials) | 1. BOM file should be in csv, xls, xlsx format 2. BOM content should be as below
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- PCBA Design Suggestion Gerber file
| 1 | If possible, keep all DIP components on the same side (Top/Bottom) |
| 2 | The distance between 2 solder pads of 0402 components should be 0.26-0.45mm |
| 3 | No silkscreen on VIA holes since VIA hole will cut the silkscreen |
| 4 | Mark the pole for polarity components |
| 5 | Minimum trace/vias/pads spacing (Check more details) |
| 6 | The distance between any two chip components should be at least 1mm; the distance between chip component and connector should be at least 5mm |
| 7 | Keep clear around big IC (48pins or more) and BGA. 3.8mm is recommended. The minimum BGA is 0.25mm |
| 8 | The solder pad size (length/width) on PCB should be larger than pin size of the component |
| 9 | Temperature-sensitive components (e.g. LED, battery) may be damaged in the manual soldering process |
| 10 | The distance between soldering points and neighbour SMD components should be at least 1mm |
- Gerber File
- BOM File
Components from Seeed OPL
We can not only solder components from our OPL but also can solder components from other suppliers, like Digikey, Mouser, Element14, Arrow, as long as the component meets the following requirements.
1). Components allowed import into Mainland China
2). In stock and the lead time is certain
2). In stock and the lead time is certain
3). No big quantity requirement for purchase
Note:
1). The MPN is 'manufacture part NO.', NOT Digikey or Mouser part NO.
2). SKU="OPL P/N" = MPN
3). Parts= Designator = location (the location of your components)
3). If one SKU have 3pcs, please use this format: SKU:318020010 Qty:3 Parts: A4,C2,C3
2). SKU="OPL P/N" = MPN
3). Parts= Designator = location (the location of your components)
3). If one SKU have 3pcs, please use this format: SKU:318020010 Qty:3 Parts: A4,C2,C3
4). Our system will automatically recognize the BOM file as long as you follow the BOM Template like below.
For Non-OPL orders: Since PCB production and components procurement take place at the same time, in most cases, the components will arrive after the PCBs have been manufactured. Therefore, the lead time for Non-OPL orders is time for components procurement and assembly/shipping time.
For OPL orders: Since all the components are sourced from our in-stock Open Parts Library, there is no procurement of components time. Therefore, the lead time for OPL orders is the PCB production time and the assembly/shipping time.
| Part/Designator | Manufacture Part Number/Seeed SKU |
Quantity |
| A4,C2,C3 | 318020010 | 3 |
| C1,C2,C3,C4,C5 | RHA0J471MCN1GS | 5 |
| D1 | ESP-WROOM-02 | 1 |
- Lead time:
The lead time for PCB Assembly orders is around 15 business days if all the parts are from the Seeed's OPL and around 25 business days if not. Please see below for details.
- PCB in production: PCB is being produced (3 - 14 business days, see note 1).
- BOM Processing: The procurement of components and other materials (around 15 - 20 business days from order confirmation).
- Assembly: The boards will be assembled and shipped 3 business days.
Note:
1. Lead time is defined as the time from order confirmation and dispatch to the customer.
2. PCB production takes 3 - 14 business days depending on specific order parameters, not including delays caused by problems with the order/files, but typical boards are completed within 3 to 5 days.
3. We strongly advise customers to place orders well in advance of deadlines in case of any delays caused by problems with the order/files.
2. PCB production takes 3 - 14 business days depending on specific order parameters, not including delays caused by problems with the order/files, but typical boards are completed within 3 to 5 days.
3. We strongly advise customers to place orders well in advance of deadlines in case of any delays caused by problems with the order/files.
- Designator
The designators in uploaded BOM comply with the ones in Gerber or in Component Placement File
The designator silkscreen should not be covered by solder pad.
- Package
The component package in uploaded BOM complies with the pads in Gerber file.
- Polarity
The polar components have polarity marks on the board.
- Quantity
Notice: Please examine the files before place an order if needed, we can't change the Gerber file once the Gerber file submits to production.
