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Customizing PCB Options
Selecting PCB Customization Options
You can choose to either use the Prototype Class Service PCB manufacturing specifications and be batched with other orders for a lower price, or choose to customize your PCB requirements.
Our Prototype Class Service PCB specifications is either 2 or 4 layers. We batch together multiple orders into a single panel and you pay only a share of the setup fees and materials cost relative to how much space you’re using. For this reason, you can’t specify a specific silkscreen color or soldermask color, and instead will get red soldermask with white silkscreen.
If you need a specific combination or soldermask and silkscreen colors, heavier copper weight, or impedance control, your design can only be manufactured with the Production Class Service and incur a minimum PCB cost. This cost is equivalent to 25 square inches (635mm²), which is the minimum size PCB panel we can order and process. If you can fit more PCBs within this minimum charge area, a warning icon will appear next to the Parts and Materials price display and mousing over it will inform you how many more PCBs you can order for the same PCB cost.
To compare the what options are available to the Prototype Class Service and Production Class Service see the PCB Specifications and Assembly Capabilities article.
Selecting Custom Options
In the MacroFab interface in the PCB tab click the “Show Specification Controls” which will open a list of all the options.
Here you can change how many copper layers your PCB has.
Selecting this option allows you to specify the thickness of your PCB, in 0.01mm increments, from 0.2mm to 6.3mm. Note that each layer count has a minimum thickness, and 0.2mm will only be supported on 2-layer PCBs.
Customizing the PCB thickness incurs a minimum PCB charge, and increasing the thickness beyond the standard thickness for the current layer count will incur a one-time charge for additional materials.
You can select from any of the following soldermask colors:
- Light Green
- Matte Green
- Matte Black
- Dark Brown
You can select from any of the following silkscreen colors:
You can select from 1oz or 2oz outer copper weight for your board. Changing to 2oz copper weight incurs a minimum PCB charge and disables extended manufacturing specifications, as we cannot produce 3mil traces with 2oz copper.
The following manufacturing type options are available:
Use standard manufacturing specifications, with a minimum trace width of 5mil, minimum part size of 0402, and minimum drill of 12mil. There is no additional charge for choosing this option.
Decrease minimum trace sizes, annular rings, and edge clearance to 3mil and set a minimum part size of 0201. There is a one-time charge per order for selecting this option, which will be the same no matter how many boards you order.
- Extended Drill
Decrease minimum drill size to 4mil. There is a one-time charge per order for selecting this option, which will be the same no matter how many boards you order.
You can combine both extended and extended drill, with two one-time charges per order.
Selecting this option enables impedance control for your order. You must provide additional information about your PCB when this option is selected. For more information about what is required see the article about Required Design Files.
Selecting impedance control on will add a one-time charge per order, which will be the same no matter how many boards you order.