Rogers PCB is a type of high-performance printed circuit board substrate material that is made by laminating multiple layers of specialized materials together. The material is named after the Rogers Corporation, which is a leading manufacturer of high-performance engineered materials.
Rogers PCB materials are commonly used in high-frequency and high-speed applications where signal integrity, thermal management, and reliability are critical. Some of the key features of Rogers PCB include:
Low dielectric constant (Dk): Rogers PCB materials have a low dielectric constant, typically between 2.2 and 3.5, which means that they can maintain signal integrity and minimize signal loss at high frequencies and over long distances.
Low loss tangent (Df): Rogers PCB materials have a low loss tangent, typically between 0.001 and 0.002, which means that they can minimize signal attenuation and distortion.
High thermal conductivity: Rogers PCB materials have a high thermal conductivity, typically between 0.5 and 2 W/mK, which means that they can effectively dissipate heat and maintain stable performance even at high temperatures.
Dimensional stability: Rogers PCB materials have a low coefficient of thermal expansion (CTE), typically between 10 and 17 ppm/°C, which means that they are less likely to warp or deform under temperature changes.
Uniform material structure: Rogers PCB materials have a uniform material structure, which means that they provide consistent performance across the board.
Rogers PCB materials are available in several different formulations, each with its own unique set of properties and characteristics. Some of the most common formulations and main advantages are as follows:
Rogers RO4000 series: A high-frequency laminate material with low dielectric loss and low moisture absorption.
Rogers RO3000 series: A high-frequency laminate material with low loss tangent and excellent dimensional stability.
Rogers RT/duroid series: A high-frequency material with high thermal conductivity and low loss tangent.
Rogers TMM series: A high-thermal conductivity material with low dielectric loss and high thermal stability.
While Rogers PCB materials offer many benefits for high-performance applications, they also come with some challenges. The cost of Rogers PCB materials is typically higher than that of standard FR-4 materials, and the materials may require specialized processing techniques and equipment. However, for applications that demand high performance and reliability, Rogers PCB materials are often the substrate material of choice.
