Seeed Fusion Service offers one-stop prototyping service for PCB(printed circuit board) service, PCBA (PCB Assembly) service and other electronic and mechanical customized service (like CNC milling,3D printing, PCB layout service)So easy to get PCBs online!
1. PCB Gerber
TheGerber format is an open 2D binary vector image file format. It is the standard file used by printed circuit board (PCB) industry software to describe the printed circuit board images: copper layers, solder mask, legend, etc.
Gerber files should be inside a .rar or.zip archive with standard file extensions:
- pcbname.GTL Top Copper
- pcbname.GTS Top Soldermask
- pcbname.GTO Top Silkscreen
- pcbname.GBL Bottom copper
- pcbname.GBS Bottom Soldermask:
- pcbname.GBO Bottom Silkscreen:
- pcbname.TXT Drills
- pcbname.GML/GKO Board Outline
- 4 layer board also need
- pcbname.GL2 Inner Layer2
- pcbname.GL3 Inner Layer3
Notes:1. Gerber file must be the RS-274x format.
2. Drill file(pcbname.TXT) should be Excellon format.
3. Gerber file and Drill file(pcb name.TXT) must be put in the same file.
4. Board outline is must, in Eagle, draw outline in layer 20.
2. PCB Specification
|Board Dimension||Min size: 10*10mm|
|Max size: 500*500mm|
|Available Board Layers||1-16 layers|
|Available Board Qty||Min：5pcs|
|Available Material||FR-4 TG130|
|Dielectric Separation thickness||0.075 - 5.0|
Available Board Thickness
|1-2 layers||0.6, 0.8, 1, 1.2, 1.6, 2, 2.5, 3|
|4 layers||0.8, 1, 1.2, 1.6, 2, 2.5, 3|
|6-8 layers||1, 1.2, 1.6, 2, 2.5, 3|
|10 layers||1.2, 1.6, 2, 2.5, 3|
|12 layers||1.6, 2, 2.5, 3|
|14 layers||2, 2.5, 3|
|Available Board Copper Weigh|
1oz. 2oz. 3oz.
|Board Thickness Tolerance||± 10%|
Minimum trace width/vias/pads spacing
Minimum inner trace width(for 4 layers board)
≥8mil (If you chose Min Tracking/Spacing 6mil )
≥6mil (If you chose Min Tracking/Spacing 5mil )
≥5mil (If you chose Min Tracking/Spacing 4mil )
Minimum silkscreen height/trace width
height ≥0.5842mm /23mil
trace width ≥0.1016mm /4mil
|Silkscreen colour is WHITE when solder mask is Green, Red, Yellow, Blue, Black|
Silkscreen colour is BLACK when solder mask is white
Minimum distance between pad and silkscreen
|Perfect aspect ratio of silkscreen||1：5|
|Outer Layer Copper Thickness（example 4 layers)||0.035-0.07(1oz-2oz)|
|Inner Layer Copper Thickness（example 4 layers)||0.017(0.5oz)|
|Drilling Hole Diameter(Mechanical)||0.2 - 6.5mm|
Minimum width of the solder mask
Minimum distance between solder mask
Circuit to edge
Minimum distance between inner line/copper and drilling hole
|Minimum milling slot||≥0.8*0.8mm|
Connection Width to panelize the board
The width of the connection should be 1/3 of the width of the board
|Milled slots( CNC cutting)|
|The minimum board dimension of V-CUT|
The V-cut line only is cut from edge to edge
|The maximum board dimension of V-CUT||≤380*380mm|
|The minimum sub-board dimension of V-CUT||≥20*20mm|
|The material of solder mask||Photosensitive ink|
|PCB production time(build time)||3-14 business days|
|Aluminum Board Specification|
|Available Board Thickness:||1mm, 1.2mm, 1.6mm, 2mm|
|QTY within:||min : 5, max:1000|
|Board Dimension:||min : 10mm*10mm|
|max : 300*300mm|
|Available Board Colour:||White (Silkscreen is black)|
|Black (Silkscreen is white )|
|Surface Finish:||HASL, HASL lead free, ENIG, OSP|
|Minimum Trace Width:||6mil|
|Minimum Trace Spacing:||6mil|
|Minimum Drilling Hole:||0.3mm|
|Production Lead Time:||5-11 business days|
|FPC Board Specification|
|Available Board Thickness:||0.1mm,0.15mm|
|Available Board Colour:||Yellow|
|Minimum Trace Width:||0.10mm|
|Minimum Trace Spacing:||0.10mm|
|Minimum Drilling Hole:||0.3mm|
|Production Lead Time:||5-7 business days|
A. There is no extra cost for identical design panelization.
When you choose“Panelized PCB” is “1” which mean there is only one design in your Gerber file.
(1) Please make sure each design is identical when selecting "panelized 1".
(2) Put the cut lines in outline layer (GKO/GML).
(3) Highlight the cut lines.
(4) Put a note beside the V-scoring line if you are using V-scoring for panelized PCB, please see the following picture.
(5) In Eagel, put in layer 20and46
(6) Please note the same sub-boards are over 50pcs (including 50pcs), we will inform you to pay USD10 for the processing fee.
B. we charge the extra cost for multiple design panelization.
E.g , (1) When you choose“Panelized PCBs” is “2”, it is mean there are 2 designs in your Gerber file and will be requested to pay the panel fee.
※ We will inform your to pay the corresponding fee if you chose the wrong parameters.
e.g. when there are 3 different sub-boards in Gerber file, you should choose “Panelized PCBs” is “3”. If you choose “Panelized PCBs” is “1”(for 2 layers), we will inform you to pay USD20 for the panel fee.
Please follow below steps to make the Gerber:
Step 1. Put all designs in one Gerber file.
Step 2. Make sure the cut lines are in outline layer (GKO/GML), and the complete board outline should go all round the edge of the boards.
※ The maximum panelized PCB ( different designs ) is 9.
Multi-layer(≥6 layers) board doesn't accept panelization.
Step 3. Choose Panelized PCBs option, ie. 5 different sub-boards = 5 designs
Please note that if there are 2 designs are the same, we still consider that those are 5 designs.
C. No Panelization
(1) Please make sure the complete board outline should go all round the edge of the boards.
4.The type of panelization
(1) The entire board size should be ≥7cm*7cm, ≤38cm*38cm.
(2) The sub-board size should be ≥ 2cm*2cm.
※Please note if the sub-board size is smaller than 2cm*2cm in your PCB Gerber file, we will inform you to pay USD16 for the processing fee.
(3) V-cut line only be a straight line.
(4) V-cut line only be cut from edge to edge.
(5) V-cut line must be zero pitch between sub-boards.
6）The minimum length between circuit wire and the v-cut line as to be ≥ 0.4mm.
(7) The thickness of the board must be ≥ 1.0mm.
B. Stamp holes
C. Milling slots( CNC cutting)
Milling slots ≥ 0.8mm*0.8mm