Panasonic’s R-1755D laminates have emerged as a standout choice for demanding applications, particularly in automotive and industrial sectors. In this article, we’ll discuss what really characterizes the high Tg & Low CTE R-1755D laminate. The relevant information is available for pcb design engineers to refer to in the selection of materials, And you can also call QFPCB to discuss. QFPCB offers the best services when it comes to the high Tg print circuit board, so please feel free to contact us.
What is the Panasonic R-1755D Laminate?
The Panasonic R-1755D is a high-reliability multilayer glass epoxy material. One of its key features is its low coefficient of thermal expansion and high glass transition temperature (Tg). Using the Differential Scanning Calorimetry (DSC) test method, the glass transition temperature of the Panasonic material is measured at 163 degrees Celsius. When tested with Thermomechanical Analysis (TMA) and Dynamic Mechanical Analysis (DMA), the respective values are 154 degrees Celsius and 185 degrees Celsius. The glass transition temperature refers to the temperature at which the material transitions into an amorphous state during lamination under high pressure and temperature conditions. This property enhances solder joint reliability due to excellent connection reliability characteristics.
Additionally, the material demonstrates superior insulation reliability, making it suitable for high-voltage applications. These attributes make the Panasonic material an ideal choice for engineers seeking the optimal material to meet their printed circuit board (PCB) requirements. The R-1755D is classified as a laminate, while the corresponding prepreg is designated as R-1650D.
This material is primarily utilized in automotive components due to its high reliability and heat resistance. In the following sections of this article, we will delve deeper into the properties of this material.
Panasonic R-1755D Laminate Data Sheet
Features of Panasonic R-1755D Laminate
The R-1755D laminate is engineered to meet stringent requirements for high-frequency and high-temperature environments. Below are its defining characteristics:
Glass Transition Temperature (Tg)
The material boasts a high Tg value of ≥154°C, ensuring dimensional stability and mechanical integrity even under elevated temperatures. This makes it ideal for applications exposed to thermal stress. The Glass Transition Temperature (Tg) of Panasonic R-1755D is a critical thermal property that determines its ability to maintain structural integrity under heat.
Dielectric Constant (Dk)
With a Dk of 4.4 at 1 GHz, The Dielectric Constant (Dk) of the material is a measure of its ability to store electrical energy in a capacitor-like manner. Panasonic laminates offer a stable Dk, this property measures a material’s ability to store some electrical energy in a given electric field.
Dissipation Factor (Df)
Panasonic R-1755D has a low Df of 0.016 at 1 GHz, ensuring minimal heat generation during signal transmission, which is crucial for applications that require efficient performance in thermally challenging environments.
Thermal Decomposition
Panasonic R-1755D laminates are designed to withstand high temperatures without undergoing thermal decomposition, which ensures long-term durability and reliability in applications that experience thermal cycling or extreme heat conditions.
Delamination Time
The delamination time of the material indicates its resistance to layer separation under high heat or mechanical stress. Panasonic laminates are engineered with strong adhesion properties to prevent delamination, ensuring structural integrity even in demanding operational environments.
Coefficient of Thermal Expansion (CTE)
Panasonic laminates feature a low CTE, which helps reduce thermal stress and enhances the laminate’s performance during thermal cycling. At the X and Y axis at α1, the Panasonic R-1755D has a CTE value of 10 – 12 ppm/℃ and 12 – 14 ppm/℃ respectively. Furthermore, at the Z-axis and α1, it has a CTE value of 43 ppm/℃, while at α2, its CTE is 236 degrees Celsius. The coefficient of thermal expansion indicates how much a material can expand when it is heated.
Peel Strength
Panasonic laminates exhibit high peel strength, ensuring the reliability and stability of connections, especially in high-stress applications like automotive ECUs. The material maintains strong adhesion, with peel strength values 1.3 kN/m, ensuring robust copper bonding for reliable interconnects.
Applications of Panasonic R-1755D Laminate
The laminate is particularly well-suited for Automotive Electronic Control Units (ECUs), where reliability under extreme conditions is non-negotiable. Panasonic R-1755D laminates are used in a wide range of cutting-edge applications, particularly in industries where reliability and performance are paramount.
Automotive ECU
Automotive ECU control various functions in modern vehicles, from engine management to safety systems. These ECUs need reliable, high-performance materials that can operate under extreme conditions, including high temperatures, vibration, and moisture. Panasonic R-1755D laminates meet these demands, providing reliable electrical performance, thermal management, and mechanical strength in automotive control units.
Other industries where Panasonic R-1755D is used include telecommunications, industrial control systems, and high-frequency electronics, where reliability and heat resistance are paramount.
Processing Advantages of Panasonic R-1755D Laminates
In addition to their outstanding material properties, Panasonic R-1755D laminates offer several key advantages in processing, making them easier to work with and highly versatile in manufacturing environments:
UL 94 V-0 Flammability Rating
Panasonic R-1755D laminates meet the stringent UL 94 V-0 flammability standard, making them suitable for applications where fire safety is crucial. This property is particularly important in automotive and industrial sectors, where the risk of fire must be minimized in electronic components.
Temperature Management
The laminate’s ability to withstand high temperatures and maintain stability under thermal stress makes it an excellent choice for applications where temperature management is essential. Whether in automotive electronics or industrial control systems, Panasonic R-1755D laminates ensure reliable performance across a wide range of temperatures.
Operational Environment
Panasonic R-1755D laminates are designed to operate in harsh environments, including those with high humidity, vibration, and temperature variations. The material’s resistance to thermal degradation and its low CTE ensure that it maintains its structural and electrical integrity even under extreme operational conditions.
Panasonic R-1755D laminates represent a cutting-edge solution for a wide range of high-performance applications, particularly in automotive electronics. For more information or inquiries about Panasonic R-1755D laminates, feel free to reach out! We hope this overview has provided valuable insights into the capabilities and potential applications of these innovative materials.
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