• Over 10 Years’ Experience
  • Competitive Price
  • Excellent Quality R03203
  • Designed by expert engineers

1.What is the precautions required for operation and transportation of R03203?

The RO3203 is PTFE plates are softer than most other rigid plates and are also prone to damage during handling, so Venture follow the correct handling procedure:

●Wear nylon gloves or gloves that do not absorb sweat when picking up and placing plates
●Keep the work surface completely clean and dust-free
●Remove plastic bags and film only before cutting or punching

nelco n4000-12

2.What is the difference between RO3203 and R03210 dielectric constant?

The polarity of polymer materials can be judged according to the dielectric constant of the substance.

Generally, substances with relative permittivity greater than 3.6 are polar substances; substances with relative permittivity in the range of 2.8~3.6 are weakly polar substances; substances with relative permittivity less than 2.8 are non-polar substances.

The dielectric constant of Ro3202 is 3.0±0.040, while the dielectric constant of Ro3210 is 10.2±0.20. When we produce PCBs, we will choose the right plate according to the specific requirements of customers.

3.What factors determine the price of RO3203 laminates

The following factors will determine the cost of RO 321O laminates.

Material Size and thickness
●Plate utilization
●Type and thickness of copper laminate used
●Electrical and mechanical properties
●Copper thickness
●some custom or special requirements
●Shipping costs

nelco n4000-13

Venture R03203 belongs to the R03000 series. They offer superior and enhanced mechanical stability.

Our R03203 is fabricated through our advanced equipment and accurate tools. All Venture R03203 had passed various industry-standard certificates. So, you can trust Venture R03203 to your specifications and requirements.

Your Leading R03203 Supplier in China

Are you looking for a professional R03203 manufacturer and certified supplier? You are in the right place. Venture is a professional R03203 manufacturer and distributor for more than 10 years.

Venture R03203 comes with fiberglass reinforcement that offers superior mechanical stability. We designed R03203 with dielectric constant and dissipation factors to provide a useful frequency range.

Also, we manufacture outstanding electrical performance R03203. Venture R03203 has some benefits. They are suitable for any multilayer epoxy board hybrid designs.

Venture R03203 also has dimensional stability for a high production yield. We designed R03203 with a smooth surface for a finer line etching tolerance.

As a leading manufacturer in China, Venture R03203 featuring useful frequency range up to 40 GHz.

Venture manufactures a wide range of R03203 that will suit to your projects. We are one of the largest R03203 manufacturers in China you can rely upon.

We manufacture and distribute the highest R03203 to our clients around the world. We offer R03203 with the most competitive rates with a very flexible payment term.

At Venture, we accept small or large quantities for every R03203 order. We aim to bring your projects and business in the market trends.

Venture has a friendly customer service team that provides full assistance.

Contact us now for more information.

RO 3203: The Ultimate FAQ Guide


If you’re looking for any information about RO 3203 laminate, you will find everything right here.

Because this guide explores every piece of information about this Rogers PCB material such as features, benefits, and material composition, amongst others.

Keep reading to learn more.

What Are the Features of RO 3200 PCB Laminate?

 Rogers PCB material

Rogers PCB material

RO 3200 PCB laminates are high-frequency PCB materials fabricated using PTFE substrate, ceramic-filled and reinforced with woven fiberglass.

These PCB laminate series offer exceptional mechanical and electrical properties at competitive prices.

Consequently, these materials possess the following features.

  • Enhanced rigidity which makes it easy to handle
  • uniform mechanical and electrical
  • Smooth copper surface
  • A low in-plane expansion which matches that of copper
  • The mechanical properties are very stable over a wide range dielectric constant
  • A low dielectric constant (RO 3203) and loss tangent
  • Easy to produce in masses

What Are the Benefits of RO 3203 Laminates?

RO 3203 PCB laminate material has the following advantages:

 PCB laminate

PCB laminate

  • Are cost-effective to produce due to ease of mass production.
  • Ideal for use in fabricating multilayer epoxy fiberglass hybrid boards designs because of the low coefficient of thermal expansion
  • Ideal for constructing complex multilayer PCBs for use in high-frequency applications.
  • Also, they are ideal for high-frequency applications and can work for frequencies above 20 GHz
  • Offers an opportunity for mounting reliable surface assemblies
  • Possess high production yields
  • Can tolerate finer line etching
  • Easy to handle due to improved rigidity

How Does RO 3203 Compare to RO 3003 Laminates?

RO 3203 laminate has almost similar mechanical and electrical properties to RO 3003 laminate.

The small variations arise from the inclusion of woven fiberglass reinforcement in RO 3203 laminate, making it more mechanically stable than RO 3003.

Specifically, RO 3203 laminate is suited for applications compatible with RO 3003 but require increased mechanical strength.

What Type of Applications Use RO 3203 Laminates?

You can use RO 3203 laminates to construct PCBs for use in a wide range applications.

You will use this material in the following application:

  • Infrastructure for base stations
  • Wireless communication’s patch antennas
  • Automatic systems for avoiding automotive collisions
  • Automotive GPS satellite antennas
  • Wireless systems for telecommunication
  • Satellites for direct broadcasts
  • Systems for datalink on cables
  • Remote meter readers
  • Power backplanes
  • Wireless and LMDS broadband

What Are the Product Specific Properties for RO 3203 Laminates?

RO 3203 PCB laminate is a mechanically stable version of R0 3003 laminates.

As such, it has closely resembling mechanical and electrical properties to RO 3003.

The following are the product features for RO 3035 PCB laminate material.

 RO 3003 laminate

RO 3003

  • Process dielectric constant of RO 3203 at 10 GHz and 23°C is 02±0.04
  • Design dielectric constant of RO 3203 at 8 to 40 GHz is 3.02
  • RO 3203 has the least dissipation factor among the RO 3200 series laminate of 0.0016 at 10 GHz and 23°C along the Z-direction.
  • It has a very low thermal coefficient of Er of -13 ppm/°C along the Z-direction.
  • RO 3203 has a volume and surface resistivity 107 Mcm and M, respectively.
  • The tensile modulus of RO 3203 is 409 and 351 Kpsi at 23°C for MD and CMD, respectively.
  • It has dimensional stability of 0.8 mm/m along X, Y- directions.
  • RO 3203 PCB laminate has less than 0.1% water absorption.
  • The PCB material has a coefficient of thermal expansion of 13 and 58 ppm/°C on the laminates in-plane and out-plane expansion, respectively.
  • Also, the decomposition temperature of RO 3203 IS 500°
  • It also possesses the lowest density of 2.1 gm/cm3 and copper peel strength of 10.2 pli of the three RO 3200 series laminate.
  • The thermal conductivity of the material is 0.48 W/m/K and the Specific heat is 0.95 J/g/K.
  • It is compatible with lead-free processing techniques and has a flammability rating of V-0.

How Do RO 3203 Laminates Compare with RO 3000 Series Laminates?

RO 3203 material is a replica of RO 3003 PCB laminate which is a product line RO 3000series laminate though with minimal differences in properties.

The differences occur as a result of the addition of fibreglass reinforcement to enhance the mechanical integrity of the PCB laminate.

As a result, RO 3203 PCB laminate is a stronger version of RO 3003 laminate with improved mechanical stability.

You can use in applications where the requirement of mechanical strength limits the use of RO 3003 PCB laminate.

How Does RO 3203 Laminate Compare with FR-4 PCB Material?

The main dissimilarity between RO 3203 and standard FR-4 material is the frequency at which the materials can be used.

You will use RO 3203 PCB material for higher frequencies, that is, up to 20GHz while FR-4 material is only suitable for use in lower frequencies.

RO 3203 material also has less than 0.1% moisture absorption which way lower than that of standard FR-4 PCB material.

Lower moisture absorption is desirable because it will have minimal influence on the electrical and thermal properties of the material when in operation.

Other differences include:

  • RO 3203 material has a higher quality than FR-4 material and thus also more expensive compared to FR-4 laminates.
  • RO 3203 has a lower dissipation factor than standard FR-4 material and hence also has a lower electrical signal loss.
  • RO 3203 possess a stable Dk over a wide range of temperature and frequency compared to standard FR-4 material.

Consequently, you can use RO 3203 material for a wide range of application than FR-4 material.

  • RO 3203 PCB material has a lower Dk value (3.02) compared to the Dk value of FR-4 material which is approximately 4.5.

What Factors Should You Consider When Selecting RO 3203 PCB Laminate?

You should consider the following factors before ordering for RO 3203 laminates:

  • System/Application requirements: Ensure that your application requirements are compatible with the electrical and mechanical properties of RO 3203 laminates.
  • Material availability: Conduct prior inquiry to confirm that your supplier has sufficient stock of RO 3203 materials.
  • Also, the laminates thickness and thickness tolerance.
  • Panel size
  • Type of surface finishing used
  • Availability of equipment required for successful product fabrication
  • The material type cladding, etc.

Do RO 3203 Laminates Require Any Special Fabrication Processes?


You will use the conventional fabrication processes typical of standard PTFE fabrication for processing your RO 3203 PCB laminate.

However, all PTFT based laminates require special treatment of the plated through-hole walls after drilling and just before plating.

Rogers Corporation has outlined some of the fundamental processing guidelines that you can use to process all RO 3200 laminate series.

The guidelines address how you can perform the following operations:

  • Storage
  • Handling
  • Preparation of inner layers, including:
    • Preparing laminate’s surface for the application of photoresist
    • Application of photoresist
    • DES processing
    • Oxide treatments
  • Bonding, including:
    • Final preparation
    • Multilayer adhesive systems
    • Multilayer bond cycle
  • Processing of plated through-hole and outer layer/Double-sided circuits. These include:
    • Drilling
    • Deburring
    • Hole preparation
    • Metallization
    • Outer-Layer Imaging and plated through-hole plating
    • Final surfaces
    • Final circuitization

What Copper Cladding Options Are There for RO 3203 Laminates?

 Rogers PCB Material

Rogers PCB Material

Copper cladding for RO 3203 is available in three main standard dimensions as electrodeposited copper.

They include:

  • ½ oz. (17 μm) ED foils
  • 1 oz. (35 μm) ED foils
  • 2 oz. (70 μm) ED foils

You can also make a special request for other types of cladding by contacting us.

Why is RO 3203 Laminate Suitable for Radio Frequency and Microwave Application?

RO 3203 is a ceramic filled, PTFE PCB material that possesses superior electrical and mechanical properties.

Specifically, RO 3203 has a low dielectric constant that is stable over a wide range of frequencies and temperatures.

The low Dk of 3.02 in combination with a low dissipation factor of 0.0016 makes the material ideal for in high-frequency applications of up to 40 GHz.

Other factors that also makes RO 3203 PCB laminate include:

  • Low water absorption: This material has less than 0.1% water absorption. This property makes it have a consistent dielectric constant.

Water has a Dk value of 70 and absorption of any amount will cause a drastic effect on the electrical properties of the material.

  • RO 3203 also has tight Dk control and thickness tolerance
  • A smooth copper surface which lowers insertion loss, by tolerating finer line etching surfaces
  • Low in-plane and Z-direction expansion
  • Improved rigidity making it suitable for mechanically demanding applications.
  • Superior dimensional stability

What Factors Should You Consider When Using RO 3203 Laminates for High Power RF Applications?

· The Problem

Majority of high-power RF applications that operate at high frequencies experience thermal management problems.

The first problem is the loss-heat relationship.

The material will generate more heat when you apply higher RF power.

Also, the material will generate more heat at a higher frequency.

Consequently, subjecting your RO 3203 material to higher heat will change its dielectric constant, which is also known as the thermal coefficient of dielectric constant (TCDk).

Furthermore, the temperature rise will also change the insertion loss.

These changes will negatively impact the performance of high-power RF circuits and can cause serious problems for your application.

· The Solution

You need to consider the following factors when choosing RO 3203 PCB materials for your high power application:

Also, you should take into consideration all factors that cause the material’s insertion loss and not only the dissipation factor.

These factors include radiation loss, leakage loss, and conductor loss.

Since RO 3203 has a very low dissipation factor of 0.0016 and a smooth copper surface.

Then you should be certain that it will produce relatively low insertion loss.

Avoid using a high-profile electrodeposited copper because it will increase the insertion loss.

You should also consider the material’s thermal conductivity.

Select a material with a higher thermal conductivity that is ideal for the effective removal of heat from the circuit into the heat sink.

You don’t need to worry about increasing heat that is caused by an increase in the materials Dk because RO 3203 material has a Low Dk of 3.02.

Similarly, you don’t need to worry about the materials TCDk, that is, the change in materials Dk with changing temperature.

Specifically, RO 3203 has a dielectric constant which is very stable with changing temperature.

Thus it has a low TCDk which is desirable for high-power RF applications.

How Can You Test the Effectiveness of RO 3203 PCB?

The procedures followed when fabricating a printed circuit board are always complex and hence the possibilities of making mistakes are also many.

Conducting a rigorous and inspection and testing will ensure that you only release the finest of quality PCBs to the consumers.

As a result, this will save on production time and cost.

You can test the performance of RO 320B PCB by performing a battery of tests that deliver different results depending on the parameter of interest.

They include:

· In-circuit Test

The test uses probes to ensure that all components are correctly placed.

You can perform this test using a bed-of-nails and flying probe setup.

It measures the performance of each component independent of other attached components.

In-circuit testing is a bit expensive.

Thus, suitable for final testing in large volume productions.

· Functionality Test

The functional test always comes at the end of the PCB fabrication, purposely to ensure that the PCB is working according to design specifications.

You will use a functionality tester interface that simulates the final environment where the PCB will function.

· Boundary Scan Test

You will use this test to check for wirelines on the PCB and tests the integrated circuits when you cannot reach all the circuit’s nodes.

It is specifically instrumental in evaluating multi-layered and high density integrated circuits.

You can use it to detect the functioning system’s problems in the field.

· Burn-in Test

It is a type of intense testing for detecting potential failures early on and establish the PCB load capacity.

The test works through continuously pushing of maximum-specified power through the PCB for 48 to 168 hours.

Board failure or infant mortality disqualifies it for use in extremely demanding applications such as medical and military applications.

Take care when performing the burn-in test.

This is because it can significantly reduce the service life of your board.

It is only reasonable for boards meant for demanding applications.

· Automated Optical Inspection

This is an inspection method that uses computer-aided cameras to ensure your PCB matches the laid down schematics.

It uses high definition cameras to capture the image of a PCB.

Then, compares it to the design specifications in the schematics.

It detects any anomalies that require further corrections.

AOI is faster than visual inspection thus saving you money and time.

· Automated X-ray Inspection

This is an automated inspection test that uses X-rays to detect defects in internal or hidden defects that cannot be detected in any other way.

The specialized X-ray machine will capture images that reveal the missing components, solder bridges, solder connections, and voids inside the solders.

Are There Any Standard Material Thickness for RO 3203 Laminates?


Rogers Cooperation produces RO 3203 laminates with varying thicknesses to enable different consumers to meet individual production needs.

Consequently, you will be able to purchase RO 3203 laminates of the following thickness from your local stockist who supplies RO 3000 series materials.

  • 254mm (0.010″)
  • 508mm (0.020″)
  • 762mm (0.030″)
  • 524mm (0.060″)

If you need customized material thickness that is not being produced in a standard dimension, you can place an order but at extra cost.

Rogers PCB material

 Rogers PCB Material

What is Differential Phase Test Method for RO 3203 Laminates?

The differential phase test method is a laboratory test method that you can use to determine the design dielectric constant of your RO 3203 laminate.

You will use this method to test the Dk of RO 3203 laminates along the Z-axis.

However, you have to take great precisions when performing the tests.

It involves the use of two transmission-line circuits in proximity to each other and differing lengths.

The materials are fabricated using the same materials and are identical in all aspects possible except the physical length.

The transmission-lines should vary in length in the ratio of 3:1 or higher and have identical connectors.

Use pressure contacts connector to allow you to use similar connectors on both circuits.

Also, consider a low-reflection fixture for the signal launch.

· Operating Principle

Differential phase test measures the phase response of the two circuits with physically differing lengths at a discreet frequency.

Determine the effective dielectric frequency using the microstrip phase-response formula.

You will need the differential length and the differential angle between the two circuits to compute the effective Dk.

Using a software routine, feed in the effective dielectric constant and let it calculate the materials Dk value through an iterative process.

Repeat the process for the next higher frequencies.

Then, plot a graph of dielectric constant versus frequency over a wide range of frequencies.

This graph will deliver information on the stability of Dk over a wide range of frequencies and also the dispersive properties of RO 3203 material.

How Does RO 3203 Laminate Thickness affect its Performance?

RO 3203 laminate thickness is defined as dielectric thickness without the inclusion of other metal claddings or copper foil as defined in IPC guidelines.

The dielectric thickness directly influences the transmission line impedance.

Selection of appropriate thickness is specifically critical for the high-frequency application.

Generally, an increase in dielectric thickness will also lead to an increase in impedance. Impedance can increase by up to 12% when you increase thickness by 20%.

This is more critical for thinner laminates.

The laminate thickness will also influence the weight and height of the PCB.

Thinner laminates confer mechanical advantages of being lightweight and so are best suited for use in mobile or portable devices.

Also, the laminate thickness also has a significant impact on the conductor size of a circuit with controlled impedance.

Besides, the dielectric thickness of a laminate also plays a fundamental role in influencing the circuit dimensions, especially at higher frequencies.

Thinner RO 3203 laminates will absorb a relatively small amount of water compared to thicker laminates.

What Are the Benefits of Using PTFE Based Composites for Fabricating Your PCB?

The PTFE composite offers superior mechanical stability and electrical performance and has been the industry’s leading material in fabricating high –Frequency PCBs.

Fibreglass reinforcement found in RO 3200 PCB laminate series enhances the mechanical stability of the material.

Furthermore, content ceramic fillers also make them easy to fabricate.

Ceramic filler significantly reduces the CTE on the Z-axis thus tremendously enhancing its dimensional stability.

PTFE composites possess excellent peel strength and the effects of CTE along the Z-axis is minimal for thinner laminate boards.

Generally, RO 3200 laminates have enhanced electrical performance, ideal CTE and improved dimensional stability.

They also have low and stable dielectric constant over a wide range of frequency and temperature.

What Procedure Can You Follow to Order Your RO 3203 Laminates?

Rogers PCB material

 Rogers PCB material

You should follow the tips below when placing your order for RO 3203 laminates:

  • Determine the specifications of RO 3203 material you are interested in the product catalogue.
  • Select the appropriate material thickness and thickness tolerance.
  • Choose the appropriate material cladding type
  • Select the appropriate panel size
  • In case you need customized sized materials, you need to make prior agreements before ordering though you will incur a little bit higher costs.
  • Once you are sure of your product’s speciation, contact the customer care for further directions on how to place your order.
  • You will be issued with a certificate of conformance once you make the purchase.

What Are the Limitations of RO 3203 Laminates?

RO 3203 is a PTFE composite laminate and as such require special manufacturing procedures.

These procedures require special treatment of the drilled hole walls before plating.

You can experience the “weave effect” when using RO 3203 laminates at higher frequencies because of the content woven glass reinforcement.

The weave effect comes as a result of uneven glass density within the PTFE dielectric causing micro-variation in the material’s dielectric constant.

The weave effect can have drastic effects on thinner laminates.

Can You get RO 3203 Laminate in LoPro® copper foil?

LoPro copper foils are copper foils that have been treated using reverse electrodeposition.

It promotes bonding between dielectric layers with lower conductor loss to smooth copper by using a thin adhesive layer.

Consequently, a LoPro copper foil will have lower insertion loss at higher frequencies.

Currently, Rogers cooperation only produces LoPro copper foils for RO 4000 series laminates.

In case you need RO 3203, Venture Electronics offers the best PCB materials.

Contact us today for all your RO 3203 materials.

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