Your Excellent CEM1 PCB Manufacturer in China

Your Number 1 CEM1 PCB Supplier

PCBMay engages in providing PCB  products and PCB assembly.  We mainly manufacture printed circuit boards, particularly the CEM1 board. As an expert manufacturer, we can do multi services like OEM processing and ODM services. 

The PCBMay CEM1 circuit board provides a lot of advantages and benefits. They achieve the best level of mechanical and electrical fields. With the CEM1 PCB, you are capable of assembling or manufacturing electronic products efficiently.

PCBMay comes in various thicknesses, shapes, and designs. This PCB offers excellent and long-lasting services. The solder mask’s colors of the CEM1 PCB are white, black, green, blue, red, yellow, and more.

We can meet various industry fields like lightning power, communication devices, automobiles, and other industrial ranges. We are specializing in CEM1 PCB fabrication and electronic sourcing components. If ever you are in electronic fields, PCBMay will be your solid partner.

PCBMay always focuses on quality and ISO management. We meet ISO9001, ISO14000, and UL standards. In addition, we implement strict quality control in every production process. You can guarantee the best quality PCB products from PCBMay.

Aside from CEM1 PCB, we also provide HDI PCB, flexible PCB, rigid-flex PCB, Rogers PCB, aluminum PCB, and heavy copper PCB. When you need any of them, then PCBMay is your one-stop PCB solution.

We offer original design, PCB assembly, and PCB fabrication services. As of now, we are serving 3000 and more customers from different countries. If you desire one of our satisfying customers, choose PCBMay to sustain your CEM1 PCB needs.

Our range of CEM1 PCB, we base it on good quality, excellent service, and reasonable price. And as of that, we obtain a good reputation and good feedback from our customers. PCBMay can serve you professionally and impressively.

Please always feel free to contact or message us. We wish to work with you for a better future!

CEM1 PCB| The Ultimate FAQ Guide

Introduction

Are you tensed about the single-layer PCB materials?

CEM1 PCB will bring out an effective solution to this issue. CEM1 material enables you to manufacture electronic applications with great efficiency. Its longevity and significant services make it an appropriate choice for prototype PCB production.

PCBMay manufactures CEM1 PCB having a lot of positive features. We hope you will get the primary and higher knowledge about this PCB through this FAQ guide. Let’s start with us.

What Is CEM1 PCB?

CEM1 PCB is an exceptional type of printed circuit board having two layers. These PCB layers are made of cellulose and glass fabrics. Here, the PCB substrate consists of epoxy materials.

Its color is milky yellow or milky white. The unique selling point of this PCB is its low cost. You can enjoy the tremendous features of CEM1 PCB in many prototype and high-volume projects.

CEM1 PCB

CEM (Composite Epoxy Material) is highly apt for single-layer PCB manufacturing. Its superlative physical stability and eco-friendly nature make this PCB more viable than FR4 PCB.

What Are The Materials Used In CEM1 PCB?

It contains phenol, epoxy resin, paper cellulose, glass fiber, etc. These materials are the principal factor behind the immense applications of this PCB. These compounds provide sufficient stress resistivity and dimensional stability to electric circuits.

Epoxy materials ensure the high thermal expansion of PCB. They are attached with cellulose in a single layer CEM1 PCB. Cellulose is incorporated with the PCB layers. These dielectric materials promote the performance of electronic appliances significantly.

CEM1 PCB Materials

Again, the surface of this PCB is covered by copper. This copper coating enhances the heat conduction in the PCB layers to a large extent.

Where Do You Use CEM1 PCB?

The use of CEM1 PCB is constantly increasing day by day. A glimpse of its most prominent applications is given here.

Communication

Its most noteworthy uses are in communication devices. This is used in the military industry, navy, defense sector due to its effective signal transmission capability. You can utilize it in the following cases:

• signaling applications
• Radar
• Relay
• mobile phone
• Power amplifier
• traffic system communication.

Computer Parts

This PCB is a common choice for computational devices. Such as calculators, computers, etc. Again, LED CEM1 circuit board is applied to the floppy disk, hard drives, CPU, and other computer parts.

Widely Used CEM1 PCB

It delivers a small amount of heat radiation due to its LED mechanism. This property increases the shelf life of PCB applications.

Industrial Instruments

Its applications reach the industrial sector because of its impressive stability. You can use it in converters, power devices, amplifiers, monitors, inductors, and so many other productions.

In the inspection instruments and scanning types of equipment, these PCB materials are very effective. Its splendid heat distribution ability makes it compatible with the lighting industry greatly.

Home Appliance

CEM1 PCB gains much credibility in the projects of home appliances. This is also suitable for versatile toys, chargers, digital meters, etc.

Lighting Systems

CEM1 material is highly worthwhile for the LED PCB. This PCB has immense applications in the lighting sector. Such as:

• Solar lights
• Automotive LED headlights
• Commercial floodlights
• LED grow light
• Lighting for the signal systems

Medical Equipment

It has great use in the medical industry. Like the surgery gadgets and the optical scanning apparatus.

What Are The Advantages Of CEM1 PCB?

CEM1 PCB develops the performance of electronic devices. Its notable advantages improve the entire production level to the optimum level. The most important benefits of this PCB are explained below for you.

Low Cost

It renders a great opportunity for producing effective devices at a low cost. These composite materials are more cost-effective compared to other PCB materials.

Here, you have to connect the PCB components on a single side of the PCB surface. That’s why the production cost considerably gets low.

High Functionality

This PCB improves the functional integrity of the PCB applications. Composite epoxy materials are highly effective for the single-layer PCB. Thus, it ensures a lightweight device that is more convenient to you.

Functional CEM1 PCB

Its commendable functionality makes it an automatic choice for high-volume PCB projects. Such as remote controlling systems, printers, SSD (Solid State Device), etc.

Robustness

This is another advantage that you can efficiently get from CEM1 PCB. These effective materials ensure high durability against electrical, thermal, and mechanical forces. That’s why you can think of using it in heavy current load applications.

Its minimal moisture absorbing ability also makes it productive in dense conditions. The high flexural strength makes it physically more stable than the other PCB materials.

Heat Management

CEM1 offers a high glass transition temperature. Moreover, it dispenses the heat throughout the PCB surface with outstanding efficiency. Again, copper is a good conductor of heat. The proper copper coating on the surface also improves its thermal management.

Dielectric Properties

Epoxy materials used in CEM1 PCB boost the dielectric properties of electronic gadgets. That means it can store higher electrical energy that positively affects its longevity. Besides, its heat dissipation also improves due to impressive dielectric properties.

Ecologically Effective

CEM1 is free from damaging antimony (Sb), phosphorus (P), etc. It never consists of excessive halogens. That indicates its halogen-free nature. This PCB also supports the technology having no lead. So, it has a negligible adverse impact on ecology.

We supply CEM1 PCB having numerous benefits. Inquire us to enjoy these features at a low cost.

How Do You Compare CEM3 PCB With CEM1 PCB?

CEM1 PCB and CEM3 PCB materials consist of immense similar properties. But, both of these epoxy materials have some definite distinguishing issues. Let’s have a look at the comparison between these two PCB materials.

• The surface of CEM1 PCB contains woven glass fiber along with paper cellulose as the core materials. But, CEM3 materials have plies fiber.
• CEM1 is a trustworthy option for the single-layer PCB design. CEM3 materials can be also used in multilayer PCB But, it is not preferable to CEM1 in a single layer.
• The dimensional stability and impedance control of CEM1 is better than CEM3.
• These composite materials lessen the manufacturing cost.
• The flame retardancy of CEM1 is not as good as CEM3 PCB.

CEM3 PCB

What Is The Dielectric Constant Of CEM1 PCB?

The dielectric constant (Dk)  of PCB materials indicates the electric permeability in a specific medium. Its lower magnitude is desired for the effective PCB design. In the case of CEM1 PCB design, the dielectric constant is less than 5 for 1 MHz frequency.

This low Dk refers to the high storage of electrical charge in these PCB materials. The dielectric constant affects the electrical properties, dissipation factor, and thermal distribution of CEM1 PCB.

Low Dk CEM1 PCB

It ensures low signal loss in the transmission system. That’s why CEM1 is becoming the most reliable solution for high-density single-layer PCB.

Why Do You Need To Consider Temperature Change In CEM1 PCB?

The temperature increase has a negative effect on the CEM1 PCB performance. So, you need to consider this issue seriously during the PCB assembly.

This PCB delivers superb efficiency because of the dielectric features of its materials. The significant temperature change deteriorates the mechanical and electrical characteristics.

Stable CEM1 PCB

Besides, high temperature increases the impedance. So, it will be complicated for you to ensure impedance control. This leads to the low current-carrying ability. Again, temperature fluctuation is harmful to maintaining the volume resistivity and thermal expansion.

That’s why the entire performance of electronic applications is lacking. So, it is evident that you have to operate CEM1 PCB without changing the thermal state time and again.

How Is The Glass Transition Temperature Important For CEM1 PCB?

The glass transition temperature (Tg) refers to the terminal temperature at which CEM1 PCB materials turn into a soft phase. It should be high. Otherwise, electronic devices can’t function well at high temperatures.

High Tg CEM1 PCB

In the case of CEM1, the glass transition temperature varies from 100⁰C to 130⁰C. This high Tg PCB keeps the applications functional at different thermal states. This property enables the PCB to maintain the electrical properties efficiently.

What Is The Performance Of CEM1 PCB Against Moisture?

CEM1 PCB delivers splendid performance against moisture. Its moisture absorption rate is around 0.16%. This value indicates that you can use the gadgets having CEM1 materials in an intense humid atmosphere.

Moisture is the Achilles heel of PCB-based applications. It hampers the dielectric features of the PCB materials. It also increases the impedance. The instability of impedance causes serious damage to the signal transmission process.

Moisture Resistive CEM1 PCB

Besides, excessive moisture absorption leads to improper heat management between the PCB layers. That’s why you have to be careful about this factor. Since CEM1 contains paper cellulose materials, there is a chance of getting attacked by moisture.

But, this PCB material can handle this issue and function superbly in humid conditions.

Why Tensile Strength Is Important For CEM1 PCB?

Tensile strength is the highest amount of stress that CEM1 PCB can tolerate before breaking. You also find it as the slippage strength. It can be measured easily. This is the ratio of the maximum force and the PCB material’s cross-sectional area

This property is important for having an idea about the robustness of the electric circuits. Usually, electronic gadgets have to go through extreme mechanical and electrical pressure. The high tensile strength informs you of the better tolerance power against extreme forces.

CEM1 PCB With High Tensile Strength

That’s why tensile strength is very crucial for the CEM1 PCB. You need to verify this property during the performance testing of the PCB. You can develop its magnitude during manufacturing.

The following measures are effective to improve the tensile strength of CEM1 PCB.

• You can add an extra cross-link between the materials of this PCB.
• Ensuring the moisture saturation at a certain temperature, like 80⁰C-105⁰C.
• Proper use of the epoxy resin along with the fiberglass.

Contact us for the supreme quality CEM1 PCB. We offer a faultless assembly of this PCB that delivers a high tensile strength.

How Does The Coefficient Of Thermal Expansion Affect CEM1 PCB?

The Coefficient of thermal expansion measures the expansion of the PCB materials due to 1⁰C temperature change. CTE of CEM1 PCB is around 300 ppm/⁰C. During the PCB assembly, you have to ensure its high value.

CTE determines the thermal compatibility of the CEM1 at high temperatures. This property keeps the device functional when the thermal state passes the glass transition temperature.

High CTE CEM1 PCB

It is necessary for the components used in electric circuits to work properly amidst the temperature change. The high coefficient of thermal expansion enables these components to handle the frequent change of temperature to a certain extent.

What Is The Effect Of Resin In CEM1 PCB?

Resins are the most vital materials of CEM1 PCB. These materials improve the performance of the PCB to the optimum level.

CEM1 PCB Resin Materials

Usually, epoxy resins and phenol-based paper resins are used as CEM1. The remarkable effects of resins include-

• Resins act to connect the glass fibers and cellulose materials. This binding occurs in such a way that they can deliver better dielectric properties.
• The cost of resin is not so high
• The resin sticks to the copper strongly. That’s why it is a good option for the impregnation process of other materials.
• The decomposition temperature of these resin materials is high. That means they affect the chemical properties of the PCB.
• Their dissolving rate is high in safe solvents.
• Resins develop the durability of CEM1 PCB.
• You can turn the resin into a flame-retardant material.

Which Is Better Between FR-4 And CEM1 PCB?

A comparative analysis between FR-4 and CEM1 PCB is described here for your convenience.

Coefficient of thermal expansion

CEM1 PCB offers a more effective coefficient of thermal expansion than FR-4 materials. That’s why CEM1 can tolerate thermal pressure efficiently.

Cost-effectivity

CEM1 delivers better performance than FR-4 materials at a significantly cheap rate. These materials decrease the burden of production cost to a great extent.

PCB Design

Composite epoxy materials are the best choice for the PCB design having a single layer. On the other hand, FR-4 materials are applicable in both multilayer and single-layer designs.

FR-4 PCB

But, CEM1 is a better option for single-sided design topology. This happens due to its affordable price and simplicity of design.

Device Weight

Usually, CEM1 PCB makes the device weight low compared to the FR-4 PCB materials. This happens because of its single-layer design technology.

Dielectric properties

CEM1 always can’t provide effective dielectric characteristics as FR-4 materials. So, its robustness is comparatively lower than FR-4. But, these PCB materials are useful for numerous electronic devices.

How Does Rigid CEM1 PCB Ensure Physical Stability?

CEM1 materials are reliable for the rigid PCB. This PCB does not permit changing its shape after the completion of the production. Rigid CEM1 PCB delivers the necessary physical stability to the devices.

This inflexible PCB is composed of epoxy resins, paper cellulose with fiberglass laminate. This combination renders tremendous mechanical endurance. Its physical resistance against external forces is highly impressive.

Rigid CEM1 PCB

Besides, there is a well-designed way for signal transmission. It improves the impedance control of the rigid PCB. The most noteworthy thing is that you don’t require a high cost to experience this stable performance.

Is CEM1 PCB Compatible With Multilayer Design?

No. CEM1 PCB is only compatible with the single-layer design technology. CEM1 material is a perfect combination of a couple of glass fiber layers. These layers are placed between the cellulose materials.

Single-sided CEM1 PCB

Then, fiber glasses are impregnated with the resin that produces a single layer of CEM1 PCB. That means the formation of the PCB materials does not allow it to be compatible with the multilayer PCB design.

What Is The Rating Of CEM1 PCB In The Ul94 Standard?

CEM1 PCB gains the V-0 rating in the UL 94 standard. This is the most desired rating among the six categories of this reliable standard. This rating refers to the following matters-

• The duration of burning is a maximum of 10 s.
• Inflamed plastic drops are permitted.

CEM1 PCB With UL 94 V-0 Rating

UL 94 tests the flammability of PCB materials from horizontal and vertical angles.

This PCB has achieved such a tough rating due to the useful CEM1. Besides, there is also silicon in this PCB. It saves the circuit from being burnt.

What Is The Suitable Mounting Process For CEM1 PCB Components?

CEM1 PCB supports the surface mount technology (SMT) for the components. Since the PCB components are becoming smaller day by day. This is happening due to the technological advancement of electricity conduction.

Surface mounting technology is viable for the single-layer PCB. That’s why CEM1 is suitable for surface mount devices. You need to apply the copper coating on the PCB surface for this reason.

PCB Surface Mount Technology

Next, use the solder mask as a layer. This layer acts as a shield for the PCB components against oxidation. Then, you can identify the location of the devices on the PCB surface.

Now, solder the surface mount devices in definite places.

Usually, diodes, resistors, inductors, etc are used as SMD on the surface of the CEM1 PCB. Then, it will be set for production. Watch this video:

There is a reminder for you. This PCB is not suitable for the double PCB or multilayer stack-up. So, you can’t apply through-hole technology (THT) to mount the components.

What Is The Design Technique Of CEM1 PCB?

CEM1 PCB design is easier compared to the other PCBs. But, you have to consult with a skilled designer to have a faultless PCB design. It requires the use of design software. Such as KiCAD, Eagle, Altium designer, circuit maker, etc.

Well-designed CEM1 PCB

CEM1 PCB design technique includes the following steps:

• Firstly, make a schematic of the PCB design. It helps to ensure proper component placement for resistors, diodes, etc.
• Determine the placement of other devices and the heat sink.
• Set the power and the ground planes. The power plane maintains the supply of AC power to the ground. It also renders the DC signal to the surface mount devices on the PCB surface.
• Now, set the impedance. You have to consider the trace width, the thickness of the copper, and the dielectric layers in this case.
• Identify the necessary vias on the surface of CEM1 PCB.
• Determine the way out for the signal.
• Place this design in a Gerber file.

If your Gerber file has no problem, you can now think about the manufacturing of CEM1 PCB.

How To Manufacture CEM1 PCB?

CEM1 PCB manufacturing is a lengthy process. You need to ensure the best effort in all segments of its manufacturing. We are here to explain the basic steps to manufacture  CEM1 PCB.

• In the beginning, design the PCB layout properly by using design software.
• Then generate the Gerber file with the PCB schematic.
• Now, convert the Gerber file to the images. Normally, printers and plotters are applied to produce photo films.
• In this step, you need to print the PCB images on the surface of the CEM1 PCB.
• Then, prepare the PCB layer through CEM1 materials.
• Bind the materials properly.
• Now, it is time to etch. This process is applied to eliminate the unnecessary copper from the surface. Usually, a strong chemical solution like ferric chloride or cupric chloride does the job.
• Cover the laminate by using a soldermask of epoxy material.
• Then, you have to use a suitable surface finish for CEM1 PCB. Usually, HASL (Hot Air Solder Leveling) is good for this PCB.
• Use the silkscreen at this stage.
• Test the PCB performance in the end.

Watch this video about the etching process:

We have been delivering its reliable manufacturing service for more than 15 years. You need to inquire with us about having an ISO-certified PCB  having IPC Class 2 standard. We have a skilled team to provide one-stop ODM and OEM services.

What Are The Limitations Of CEM1 PCB?

Limitations of CEM1 PCB need to be considered during manufacturing. You should try to lessen these negative sides of this superb circuit solution. Its notable disadvantages are-

• CEM1 is not compatible with multilayer PCB stack-up.
• It does not deliver effective endurance against mechanical stress.
• These materials don’t support strong soldering of the PCB components.

Fault-less CEM1 PCB

Conclusion

This is all about CEM1 PCB. Its reasonable price with tremendous performance makes it more unique than the others. The useful functionality and high Tg add significant values to its features.

This guide will diminish the stress of finding a trustworthy supplier of CEM1 PCB. PCBMay is the most superior manufacturing and assembly service provider in recent times. We hope the easy explanation of each topic will help you a lot in this case.

If you have more questions, contact us. Stay tuned.