China Multilayer Flex PCB
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2023-01-05 16:46:40 Multilayer Flex PCB 293 Viewed
SummaryLow loss Multilayer Flex PCB Material Multilayer Flex PCB is made of multiple inner layers and two outer layers pressed together. The surface treatment adopts an environment-friendly gold plating process with high stability. The coating film is heat resistant and radiation resistant. Multilayer Flex...
Low loss Multilayer Flex PCB Material
Multilayer Flex PCB is made of multiple inner layers and two outer layers pressed together. The surface treatment adopts an environment-friendly gold plating process with high stability. The coating film is heat resistant and radiation resistant. Multilayer Flex PCB technology is suitable for many high-precision and high-demand electronic products. Low transmission loss Multilayer Flex PCB has the advantages of large-capacity data transmission and ultra-thin design. The following is an analysis of low-loss Multilayer Flex PCB materials.
1. Low loss and compatibility of multilayer flex PCB helps to transfer larger capacity data at higher speeds.
2. Multilayer Flex PCB has a 0.2mm thick 3-layer structure and multi-signal line structure, which is conducive to thinner mobile device design.
3. Circuit board materials can be stored at low temperatures, facilitating the manufacture of multilayer flex PCB.
Multilayer Flex PCB Standard
Multilayer Flex PCBS are standard compliant with IPC 6013-Type 3. They have three or more conductive layers with insulating layers in between. Multilayer Flex PCB technology makes use of electroplated through holes to ensure connectivity between layers. Multilayer Flex PCB can also use high-speed controlled impedance for bending adaptation applications. Multilayer Flex PCBS offer a great deal of design freedom and are suitable for many applications. Multilayer Flex PCB provides assembly flexibility during installation without loss of functionality. Multilayer Flex PCBS are suitable for high-density component placement, which is the current development trend.
Multilayer Flex PCB Design Essentials
1. Step drop design of Multilayer Flex PCB, can add wet film to fill the step. Such as step drop printing ink thickness fluctuation, easy to lead to uneven ink thickness, will produce excessive development, development is not a clean phenomenon.
2. In the Multilayer Flex PCB design, 40um dry film can be used to fill the step, and the cursor of the step position surface can be exposed first, so that there is no defect after the cursor of the step position is etched.
3. In the design of Multilayer Flex PCB, dry film filling and exposure can effectively solve the problems of dissolution, layer bias dislocation and so on, and meet the demand of fine line consumer electronics production.
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Multilayer Flex PCB Description
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Multilayer flex PCB structure
Multilayer Flex PCB by "multiple single-side CCL (or double panel) + pure glue + protective film (CVL)" pressed together, Multilayer Flex PCB through the PTH hole will be connected to each layer wire, due to too many layers, Poor flexibility of Multilayer Flex PCB (good flexibility of pure rubber opening design area)
Advantages of multilayer flex PCB
Like rigid Multilayer PCB, Multilayer Flex PCB adopts multi-layer lamination technology. The advantages of Multilayer Flex PCB are that the substrate film is light weight and has excellent electrical characteristics. The Multilayer Flex PCB made of polyimide film as the base material is about 1/3 lighter than the rigid epoxy glass cloth Multilayer PCB board, but the Multilayer Flex PCB loses the excellent flexibility of single-sided, double-sided soft PCB. Most of these products do not require flexibility.
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