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Project
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Process Capability
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Detailed explanation of pcb process
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1-20 layer PCB circuit board
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The number of pcb layers refers to the number of layers of the design file. Currently, 1-12 through-hole boards can be produced.
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Plate type
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FR-4 rigid board /aluminum substrate
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FR-4 sheet (A-grade Kingboard material, A-grade Guoguo material)/Aluminum base sheet {Halogen-free circuit board}
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/
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The quality of the ink directly affects the solder resist performance of the PCB, which in turn directly affects the performance of the product.
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680mm*1200mm
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Maximum size of double-sided pcb board production: 680x1200mm, maximum size of four or six-layer pcb board production: 680x640mm
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Plate thickness range
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0.4--2.0mm
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The current custom production pcb board thickness: 0.4/0.6/0.8/1.0/1.2/1.6/2.0--3.0mm
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Dimensional Accuracy
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±0.15mm
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CNC outline tolerance ±0.15mm, V-cut plate outline tolerance ±0.15mm
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Plate Thickness Tolerance ( t≥1.0mm)
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± 10%
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Please note: due to production process reasons (copper sinking, solder mask, pad spraying will increase the thickness of the board), the tolerance is generally positive.
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Plate Thickness Tolerance ( t<1.0mm)
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±0.1mm
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Please note: due to production process reasons (copper sinking, solder mask, pad spraying will increase the thickness of the board), the tolerance is generally positive.
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Minimum line width line moment
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4mil/4mil (0.1mm)
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At present, 4mil line width can be customized for production , and the line width and line torque are as large as 4mil
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Minimum aperture
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0.2mm
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At present, 0.2mm line width and line moment can be customized, and the line width and line moment are as large as 0.2mm.
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Minimum clearance
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4mil (0.1mm)
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At present, 4mil line spacing can be produced, and the gap is as large as 4mil
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Finished outer copper thickness
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35um/70um/105um
(1 OZ/2 OZ/3 OZ)
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Refers to the thickness of the copper foil on the outer layer of the finished circuit board, 1 OZ=35um, 2 OZ=70um, 3 OZ=105um
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Finished hole diameter (machine drilled)
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0.25--6.5mm
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Due to the metal copper attached to the inner wall of the hole, the diameter of the finished hole is generally smaller than the hole diameter in the file
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Bore Tolerance (Machine Drill)
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±0.075mm
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The tolerance of drilling is ±0.075mm, for example, it is designed as a 0.6mm hole, and the finished hole diameter of the physical board is 0.525--0.675mm is qualified and allowed
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Solder mask color
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Green/Red/Blue/White/Black/Purple...
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Solder mask color refers to the ink color of the solder mask layer on the surface of the pcb
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Minimum character width
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≥0.15mm
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The minimum width of the characters, if it is less than 0.15mm, the actual board may cause the characters to be unclear due to design reasons
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Minimum character height
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≥0.8mm
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The minimum height of the characters, if it is less than 0.8mm, the actual board may cause the characters to be unclear due to design reasons
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character aspect ratio
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1:05
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The most suitable aspect ratio is more conducive to production
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Trace and Outline Spacing
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≥0.3mm (12mil)
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When the gong board is shipped, the distance between the line layer and the outline of the board shall not be less than 0.3mm;
when the V-cut panel is shipped, the distance between the trace and the center line of the V-cut shall not be less than 0.4mm.
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Imposition: Gapless Imposition Gap
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0 gap spell
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It is made up and shipped, and the gap between the intermediate board and the board is 0 (the document has a detailed explanation)
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Imposition: With Gap Imposition Gap
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1.6mm
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The gap of the imposition with gap should not be less than 1.6mm, otherwise it will be difficult to edge the gong
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pcb shape process edge
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0.3mm/0.5mm
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The conventional process edge is 0.5mm, if there are special requirements, please inform in advance
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Pads manufacturers copper laying method
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Hatch way copper
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The manufacturer adopts the reduction of copper plating. Customers who design this item with pads must pay attention
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Picture slot in Pads software
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Layer with Drill Drawing
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If there are many non-metallized grooves on the board, please draw on the Drill Drawing layer
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Window layer in Protel/dxp software
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Solder layer
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A few engineers mistakenly put it into the paste layer and do not deal with the paste layer.
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half hole process
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No more than 10
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The half-hole process is a special process, and the minimum hole diameter must not be less than 1.0mm
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Through hole unilateral welding ring (t<1.0mm)
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4mil{0.1mm}
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The parameter is the minimum value, try to be larger than this parameter
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Inner diameter 0.2mm, outer diameter 0.45mm
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The minimum inner diameter of the double panel is 0.3mm, the minimum outer diameter is 0.6mm, the minimum inner diameter of the multi-layer board is 0.2mm, and the minimum outer diameter is 0.45mm
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