Improved multilayer circuit board and manufacturing method thereof
A multi-layer circuit board and manufacturing method technology, applied in the direction of multi-layer circuit manufacturing, printed circuit manufacturing, circuit lamination, etc., can solve the problems of outer layer copper foil wrinkles, poor flatness, etc., to ensure yield and flatness High, guaranteed quality effect
Pending Publication Date: 2021-10-19
DIGITAL PRINTED CIRCUIT BOARD CO LTD
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The invention discloses an improved multilayer circuit board and a manufacturing method thereof. The improved multilayer circuit board comprises a multilayer circuit board. The multilayer circuit board comprises a first outer-layer copper foil, a first glass fiber PP layer, a second glass fiber PP layer, a third glass fiber PP layer, a first inner-layer copper foil, a first inner-layer plate, a second inner-layer copper foil, a fourth glass fiber PP layer, a fifth glass fiber PP layer, a first PP layer, a third inner-layer copper foil, a second inner-layer plate, a fourth inner-layer copper foil, a second PP layer, a sixth glass fiber PP layer, a seventh glass fiber PP layer, a fifth inner-layer copper foil, a third inner-layer plate, a sixth inner-layer copper foil, an eighth glass fiber PP layer, a ninth glass fiber PP layer, a tenth glass fiber PP layer and a second outer-layer copper foil which are sequentially stacked from top to bottom. The multilayer circuit board is manufactured through the procedures of first inner-layer plate manufacturing, second inner-layer plate manufacturing, third inner-layer plate manufacturing, pressing, copper reduction, film drying and etching. According to the improved multilayer circuit board and the manufacturing method thereof, the problems that the flatness is poor and the outer copper foil is wrinkled after the multilayer circuit board is laminated can be solved.
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Property | Measurement | Unit |
Thickness | <= 0.2 | mm |
Thickness | 35.0 | µm |
Thickness | 52.5 ~ 70.0 | µm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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