Fusion Technical FAQ
What is the depth and width of the v-cuts/grooves?
Typically, the depth of the v-cut/groove/score is 1/3 of the thickness of the board. So if you want v-cuts we recommend that you select a thickness greater than 0.8mm or the boards may break directly. The width of the v-cut line is 0.4mm. An ...
What are the PCB panelization rules?
日本語 Such orders can directly be placed on Seeed Fusion Service. A. There is no extra cost for identical design panelization. ie. If you choose "Different Designs = 1" that means there is only one design in your PCB Gerber file. So if you want to ...
What are the dimensions for Dielectric Separation thickness?
The dimensions for Dielectric Separation Thickness is 0.075 - 5.0mm (or 2.95 - 196.85mil). More information on Fusion's PCB Specification can be found here.
What is the thickness of the inner copper layers?
For a 4 layer stack-up, the inner copper thickness is 0.017mm (0.67mils) per 0.5oz copper. 1oz copper FR4 0.5oz copper 1.2mm FR4 0.5oz copper FR4 1oz copper Inner Layer Copper Thickness (example for 4 layers) 0.017mm(0.5oz) 0.67mils
What are Blind and Buried Vias?
日本語 Blind and buried vias are only available on boards with at least four layers. Unlike regular vias on a two layer board which connect the two surface layers, buried and blind vias connect the inner layers with either other adjacent inner layers or ...
What is the The Min Track/Spacing for 1oz./2oz./3oz. Copper weight
Copper weight The Min Track/Spacing for online quotation 1oz ≥4/4mil 2oz ≥10/10mil 3oz ≥15/15mil For 4/4 mil 1oz. The distance between drilling holes and track should be more than 8mil. The distance between track and copper pour shoulde be more than ...
What are Plated Half-Holes/Castellated Holes?
日本語 Plated half-holes or castellated holes are plated half holes with half on the edges of the board. They are commonly used for breakout boards or small modules. You may have seen them on some Wi-Fi modules which are then soldered onto a larger PCB ...
What size PCBs can Seeed Fusion manufacture?
日本語 The size of the laminates available depends on the type of PCB base material. For standard FR-4 TG130: from 10 x 10mm to 500 x 500mm. For Aluminum boards: from 10 x 10mm to 300 x 300mm For FPC: from 3 x 3mm to 100 x 100mm What can I do if my ...
What PCB materials are available in Seeed Fusion?
日本語 For the standard PCB service, Fusion provides 3 options; FR-4 TG130, Aluminium and Flexible PCB materials. For most purposes, FR-4 TG130 is more than sufficient. If you are not sure which material you need, then FR-4 is most likely sufficient. ...
What color options are available for the solder mask/resist?
日本語版 Solder mask, solder resist, stop mask, oil, etc. protects the copper traces of the PCB and ensures that the solder only flows on the exposed pads. It is what makes a typical PCB green in color. But it does not have to be. In Seeed Fusion ...
What PCB surface finishes are offered in Seeed Fusion?
日本語 Seeed Fusion's standard PCB service offers four surface finish options from the popular HASL to high-quality ENIG finishes to suit different applications. A surface finish is applied to the exposed copper pads to protect them and prevent ...
What is the PCB copper weight?
日本語 Copper foil thickness is specified in units of ounces per square foot (oz/ft²), or just referred to simply as ounce. Popular thicknesses include 1 oz/ft² (300 g/m²), 2 oz/ft² (600 g/m²), and 3 oz/ft² (900 g/m²). These work out to thicknesses of ...
What is Impedance Control?
日本語 Impedance Control may be required when the impedance of specified traces need to meet a certain value, in order to ensure the integrity of the electrical signal when high switching frequencies are involved. When selecting this option, please make ...
PCB quantity
The number of panels you want. If you panelize two same sub-boards in panel and you choose qty 10, you will get 20pcs same sub-boards finally. 日本語
Recommend size for BGA
For BGA design, We recommend that the minimum circuit distance of BGA is 4 mil, and the minimum BGA is 0.25mm.
Solder Mask Dam
日本語 The mask dam between pads will help to prevent accidental solder bridging during assembly. If the soldermask dam is too small, we will remove the dam directly. If you want better solder mask dam, please choose pcb color green, it will get better ...
What is the difference between Fusion standard PCB and Fusion Advanced PCB?
Standard board:→Fusion PCB Custom board:→Fusion Advanced PCB Why it is cheap/expensive We will buy lots of metal-clad bade material in the same specification at once to reduce the cost. We will buy many different kinds of metal-clad bade materials. ...
What should I do if my Gerber files are too big (over 4MB)?
Please only include one set of Gerber files, drill files and any other necessary files in your upload. Schematics, BOM files, DRC files etc. are not necessary and will only make it harder for the engineers to find the necessary data. If your Gerber ...
Can you make special shape/outline of PCB?
We can do PCB of any shape/outline, we will produce the PCB exactly as you designed it.
Seeed Fusion PCB Gerber Reader FAQ
The Seeed Fusion PCB order platform has several features to speed up the order process and catch some common PCB mistakes. When you upload the PCB manufacturing files, the platform will try to extract the following information from the files: - PCB ...
Seeed Fusion PCB upload error: Drill file not found
Please check that you have included the NC drill file in Excellon format. Most PCBs require drill holes of some sort. The Seeed Fusion PCB platform can identify drill files that are in Excellon format when files are uploaded. If the platform is ...
Seeed Fusion PCB upload error: Outline not found
Please ensure you have an outline drawn in one of the files, ideally in a dedicated outline layer and that this layer is named appropriately (.GML, outline etc.) All PCB orders require a board outline to tell us how to cut out the boards. The Seeed ...
Seeed Fusion Rare PCB Parameter Combinations
Coming soon!
How do I place an ODM Light Customization order on your website?
To place an ODM Light Customization order, please follow our detailed User Guide. You can access the guide and its step-by-step instructions by clicking on the link ...
Designing Multi-color Silkscreen in Seeed Fusion: Tips and Best Practices
日本語 Silkscreen printing is an essential part of printed circuit board (PCB) manufacturing, as it helps to label and indicate components' placement on the board. While silkscreen printing is typically done in one or two colors, more and more designers ...