In the world of PCBs, among the different materials, each possesses certain beneficial attributes along with other demerits. Within this range of CEM1 PCBs, PCBs manufactured on CEM1 are the mainstream for plenty of electronic devices. At RapidCircuit, the thing that matters the most to us is your ability to choose the right thing because insights we provide reflect a full range. Let us explore in this handout the Bright Sides and Drawbacks of CEM1 PCBs that allow you to grasp the specific aspects that could be involved in your project.

What is CEM1 PCB?

CEM1 (Composite Epoxy Material) is a kind of laminate of the substrate material applied to make the PCBs. It is a mesh material made of a glass fabric, immersed in a special epoxy resin and reinforced with cellulose paper. CEM1 PCBs are already fame for their price competitiveness and versatility, resulting in suitable and adapta-able applications across many industries.

Pros of CEM1 PCB:

Cost-Effective: With the low cost made of CEM1 PCB as one of its major pros, it is likely that this material will become very popular in the manufacturing industry in the years to come. FR4 is not the only option, yet CEM1 is as alternative that is economical but still don’t compromise in quality, hence suitable for the projects that are on increasingly tight budget.

Good Electrical Insulation: CEM1 PCBs has high electrical isolating characters, in-turn those devices will work efficiently, reliably and with convenience. This isolation guards against short circuits and electrical flaws, endorsing the integrity of the wiring or circuit.

Easy to Fabricate: The material of the CEM1 components could be machined with normal procedures when fabricating the items. It’s a perfect tool for a varied PCB designs drilling and routing , and for instance machining which expands the collaboration in product development.

Suitable for Single-Sided PCBs: CEM1 is a very frequently utilized laminate in the fabrication of single-sided printed circuit boards due to its desired attributes. The consolidation eliminates mechanical strength and temperature resistance constraints for many practical applications.

Good Thermal Performance: It is certainly inferior in terms of its thermal resistance compared to some other materials; however, the CEM1 PCB still provide very favorable thermal performance. These fans guarantee proper removal of hot air, thereby keeping the operation of electronic components constant in usual operational conditions.

Cons of CEM1 PCB:

Limited Layer Count: Where CEM1 PCBs inhibit multilayer designs is where their limited capability begins. Because of their structure, single sided boards may fail to ensure the same quality and durability levels compared with the superior multilayer assemblies using more elaborate materials.

Lower Mechanical Strength: Mechanical strength and rigidity are definitely the features on which FR4 is more advantageous than CEM1. If required for many applications, inadequate CEM1 PCBs can be implemented but they might become problematic if the mechanical stress or vibration is strong enough.

Limited Temperature Resistance: The CEM1 material for PCBs has the drawback of a lower temperature resistance compared to other PCB substrates available. Such submissions may bring about premiums for its uses in applications where heat is the most used factor. These may result in poor performance or early failure.

Not Ideal for High-Frequency Applications: However, the CEM1’s electrical attributes might be a drawback for situations requiring high frequency applications of precise signals where signal integrity and impedance are controlled in detail. Things of high dielectric material quality are much more adequate for this job.

Environmental Concerns: Although these materials are mostly seen as being suitable for use in the design of electronic equipment, the handling of the substances, which is part of their production process, can expose the environment to some chemical dangers that can be managed through the various control measures.


Thus, it can be argued that CEM1 PCBs provide the ‘cheap and efficient’ solution for the different electronic projects. Albeit they may not do very well in all applications, the low cost and the simplicity of their fabrication make them an option which is suitable for almost all business and manufacture spheres. On the other hand, decisions as well as balancing the pros and cons wisely would come to make CEM1 PCBs fit your customized projects.

RapidCircuit understand your needs and that is why you will get high-quality PCB according to your specific things from us. If you are looking for CEM1 PCB[s] or other related materials to be manufactured, we can help you simplify the complex process of PCB production and satisfy your needs accordingly. Today let our team know about how our company can serve your project excellently.