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Plain substrates" is a broad term, and the features can vary based on the context of their use. In general, a substrate refers to a material or surface on or in which an organism or complex system grows or is attached. However, I'll provide some general features associated with plain substrates in different contexts:Material Diversity: Plain substrates can be composed of various materials, including but not limited to metals, polymers, glass, or ceramics. The choice of material depends on the specific application requirements.Flat Surface: In many cases, plain substrates have a flat and even surface, which is important for applications where a smooth foundation is necessary. This feature is often critical in electronics, optics, and manufacturing.Compatibility: Plain substrates should be compatible with the processes and materials that will be applied to or interact with them. This includes considerations for thermal, chemical, and mechanical compatibility.Customizable: Plain substrates can often be tailored to specific dimensions, shapes, and surface properties based on the requirements of a particular application. This customization allows for flexibility in design.Conductive or Insulating Properties: Depending on the intended use, plain substrates can have conductive, insulating, or semiconductive properties. This is particularly relevant in electronic and electrical applications where the substrate's electrical characteristics play a crucial role.Thermal Conductivity: In some applications, thermal conductivity is an important consideration. Plain substrates may be chosen for their ability to efficiently conduct or insulate heat, depending on the specific requirements.Biocompatibility: In biological or medical applications, plain substrates may need to be biocompatible to ensure they do not cause adverse reactions when in contact with living tissues or fluids.Cost-Effectiveness: Plain substrates are often selected for their cost-effectiveness in manufacturing processes. The choice of a substrate material can impact the overall cost of production.Optical Transparency or Opacity: Depending on the application, plain substrates may need to be transparent, translucent, or opaque. This is relevant in fields such as optics, display technologies, and sensors.Chemical Resistance: In environments where exposure to chemicals is a concern, plain substrates may be selected for their resistance to corrosion or chemical degradation.Environmental Stability: Plain substrates should exhibit stability under various environmental conditions, including temperature fluctuations and humidity levels.Ease of Handling and Processing: Manufacturing processes and ease of handling are important features. Plain substrates should be suitable for the intended manufacturing methods and processes, whether it involves cutting, shaping, or coating.It's important to note that the specific features of plain substrates will depend on the intended application, industry, and the materials used in their composition. For example, a plain substrate in the electronics industry may have different characteristics compared to a substrate used in a biological research setting.