Rogers PCB Manufacturing. Rogers 4350b pcb high frequency material is a glass fiber reinforced (non PTFE) hydrocarbon / ceramic stack designed for high capacity, high performance commercial applications. The ro4350 is designed to provide excellent RF performance and cost-effective circuit production. As a result, low loss materials can be produced using a standard epoxy / glass (FR4) process at a competitive price. As the operating frequency increases to 500 MHz or higher, the number of laminates that designers can normally choose from will be greatly reduced.
The rogers 4350b pcb has the characteristics required for RF microwave, and develops and implements repeatable filters, coupled networks and impedance controlled transmission lines. Low dielectric loss allows the ro4350 series materials to be used in many applications where higher operating frequencies limit the use of traditional printed circuit board laminates. The temperature coefficient of dielectric constant is one of the lowest in all printed circuits, and the dielectric constant is stable in a wide frequency range. This makes it an ideal substrate for broadband applications.
The quality of the hole should be used to determine tool life, not tool wear. The rogers 4350b pcb material provides good drilling quality when drilling with a drill bit worn to epoxy / glass standard. Compared with EP oxy / glass, the roughness of material hole ro4350 does not increase significantly when using this tool. The typical values vary between 8 and 25 μ m regardless of the number of visits (up to 8000 visits are evaluated). The roughness is directly related to the size of the ceramic filler and provides favorable morphology for the adhesion of the pore wall. It has been found that the drilling conditions for epoxy / glass panels can provide good hole quality with a touch rate of more than 2000.
The coefficient of thermal expansion (CTE) of rogers 4350b pcb material provides circuit designers with several key advantages. The coefficient of expansion of material ro4350 is similar to that of copper, which makes the material visible.
Rogers 4350b pcb material dimensional stability
This is a necessary property for the construction of multilayer printed circuit boards with mixed dielectrics. The low CTE of the ro4350 laminate on the z-axis provides reliable through hole quality even in severe thermal shock applications. The Tg of the ro4350 series materials is higher than 280 ° C (536 ° f), so their expansion properties are stable at all process temperatures in the circuit. Using standard FR4 PCB processing technology, the ro4350 series laminates can be easily converted into printed circuit boards. Unlike high-performance PTFE based materials, the ro4350 series laminates do not require special preparation processes, such as sodium etching. The material is a rigid, thermally stable laminate that can be processed using an automatic processing system and gaskets used to make copper surfaces.
Rogers 4350b pcb material usability
Rogers 4350b pcb laminates are currently available in a variety of 1080 and 1674 fiberglass fabric models, all of which meet the same laminate electrical performance specifications. Designed for direct replacement of ro4350 materials, the ro4350 laminate uses RoHS compliant flame retardant technology for applications requiring UL 94V-0 certification. These materials meet the requirements of ipc-4103 / 10 of ro4003c and / 11 of ro4350.
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