Rogers 4350 PCB

What are the Applications of Rogers 4350 PCB?

Car antenna/RFID and Backup auxiliary
Low Noise Block down converter (LNB)
Mobile infrastructure antennas
Point-to-point digital radio

Power amplifier and Airborne antenna system
Broadcast satellite
Ground radar system and Missile guidance system
Millimeter wave applications
High speed digital


Rogers 4350 Material Quality Standard

Rogers 4350 is a type of Rogers imported sheet from the United States, and the material we purchase strictly adheres to the following important quality and safety standards.

1. UL standard
2. ISO standards
3. CE standard
4. REACH the standard
5. The IPC standard

The Shelf life of Rogers 4350 material

As you know, Rogers material is scarce and more expensive than normal RF4 material. It is one of the conditions for the customer to choose the manufacturer that the manufacturer has sufficient plate inventory.

Venture is engaged in Rogers PCB prototype and mass production. Usually we will prepare enough materials in the warehouse. Rogers 4350 laminate can be stored for long periods of time as long as room temperature is maintained between 13 to 32 degrees Celsius and humidity levels. At the same time, our IQC colleagues will strictly follow the sanitation management of the warehouse.


Rogers 4350 PCB

High-frequency Venture Rogers 4350 PCB materials are glass fiber reinforced (non-PTFE) hydrocarbon, or ceramic laminates. They are designed for high-performance, high volume commercial applications.

Our Rogers 4350 PCB provides superior RF performance and cost-effective circuit production.

Your Leading Rogers 4350 PCB Supplier in China

Rogers 4350 PCB

Venture Electronics manufactures a wide range of Rogers 4350 PCB with different laminates selection.

Venture Rogers 4350 PCB is best suited for RF microwave developers’ requirements. It enables the repeatable design of coupling networks, filters, and impedance-controlled transmission lines.

Our Rogers 4350 PCB featuring low dielectric loss. So, it is ideal for higher operating frequencies applications that limit the use of conventionally PCB laminates.

Venture Rogers 4350 PCB is also an ideal substrate for broadband applications since the dielectric constant is stable over a wide frequency range.

We manufacture Rogers 4350 PCB with excellent bore quality when drilling with drills.

If you are looking for the highest quality Rogers 4350 PCB, Venture Electronics is always the best place.

We have been manufacture Rogers 4350 PCB for more than 10 years.

Besides, almost 500 companies have relied on Venture Electronics Rogers 4350 PCB for their projects.

Our years of experience in this industry means that you will get the highest quality products.

As an expert and professional manufacturer, we can offer you a Rogers 4350 PCB at reasonable rates.

Whether you are a software integrator or a distributor, Venture Electronics can support your projects and business by providing flexible payment terms.

Large or small quantity orders for Rogers 4350 PCB are welcome at Venture Electronics.

We have approachable, friendly customer service personnel who will handle your inquiries and orders.

We assure you to give the best services without any hassle.

Get a quick quote for your Rogers 4350 PCB order now!

Rogers 4350 PCB: The Ultimate FAQs Guide


In today’s guide, you’re going to learn everything about Rogers 4350 PCB.

First, I will begin by comparing Rogers 4350 with other PCB materials.

Then, we will proceed to discuss vital aspects of the Rogers 4350 PCB such as specifications, standard thickness, dielectric constant and many more.

So, if you want to be an expert, read this guide.

How does Rogers 4350 PCB compare to Rogers 4003 PCB?

Rogers 4350 PCB and 4003 C PCB closely resemble on performance and parameters.

You will use RO 4350 and RO 4003 PCBs for high frequency, high volume, and high-performance applications.

RO 4003

 RO 4003

However, there are some slight differences in the characteristics of these PCBs.

These differences include:

  • The dielectric constant of RO 4350 at 10GHz is 3.48 ± 0.05, while that of RO 4003 is 3.38 ± 0.05 at the same frequency.
  • RO 4350 has a thermal coefficient of +50 ppm/ °C at 0 to 100°C, while the thermal coefficient of RO 4003 is +40 at similar conditions.
  • RO 4350 has a dissipation factor of 0.0040, while RO 4003 has a dissipation factor of 0.0027 at 10 GHz.
  • The CTE of RO 4350 along the X, Y, and Z-axis is 14, 16, and 50. In contrast, the CTE of RO 4003 is 11, 14, and 46 at between 0 and 100°C.
  • The thermal conductivity of RO 4350 is 0.62, and that of RO 4003 is 0.64
  • Whereas RO 4350 has a UL flammability rating of 94-VO, RO 4003 is not rated for UL flammability.
  • The two products also have slight differences in the following factors:
    • RO 4350 RO 4003
  • Dimensional Stability <0.5                                         <0.3mm/m
  • Surface Resistivity 7 x 209                                  4.2 x 109 Mohm
  • Volume Resistivity 2 x 1010                                 1.7 x 1010 Mohm•cm
  • Specific Gravity 23C 9                                           1.8
  • Peel strength 9                                           1.1 N/m
  • RO 4003 is fabricated using a halogen-free material, making it more environmentally friendly than RO 4350.

The difference is brought about by the flame retardant material present in RO 4350 laminates.

Note that the two PCBs possess a similar transitional temperature of 280°C and moisture absorption of 0.06%

What are the Features of Rogers 4350 PCB?

Rogers 4350 PCB are economically produced PCBs that provide top-notched radio frequency (RF) performance.

Rogers 4350b

Rogers 4350B

  • It has a very low dielectric constant, in fact, one of the lowest of all PCBs
  • The dielectric constant is also very stable over a wide range of frequencies.
  • It has a low dielectric tolerance and loss.
  • Can work for frequencies beyond 500 MHz
  • It has one of the best hole qualities.
  • It has a thermal expansion coefficient which is close to that of copper, which increases its durability.
  • Can provide stable performance under harsh environmental conditions, such as high temperature
  • It has excellent dimensional stability, which supports quality through-hole even in severe scenarios.
  • The high transitional temperature of 280°C makes it suitable for use in a high-temperature application.
  • Easy to process or fabricate in bulk since the RO 4350 material requires no unique treatments
  • It is suitable for broadband applications.
  • Has improved impedance control
  • It has low water absorption and electrical noise.
  • Low dissipation factor

How does Rogers 4350 PCB Compare to other PCB Materials?

Here is how Rogers 4350 PCB compares to other PCB Materials:

Rogers 4350 PCB vs. Isola PCB

Rogers 4350 PCB is a high-frequency PCB fabricated using glass-reinforced hydrocarbons and ceramics.

On the other hand, you can construct Isola PCBs using diverse materials, mostly copper-clad laminates, suited for high-speed applications.

 Isola PCB

 Isola PCB

Both Isola and Rogers 4350 are high-frequency PCBs ideal for use in high-temperature applications.

Both PCBs also have low CTE along the Z-axis.

Rogers 4350 PCB vs. Taconic PCB

Taconic PCBs primarily constitute fine ceramics and silicone coated PTFT and glass, whereas Rogers 4350 PCB is mainly comprised of hardened ceramics and hydrocarbons.

 Taconic PCB

Taconic PCB

You will use both Rogers and Taconic PCBs for high-performance applications due to their superior thermal, physical, and electrical properties.

Rogers 4350 PCB vs Arlon PCB

Unlike the Rogers PCB made only from hardened ceramics and hydrocarbons, Arlon PCBs can be fabricated using different materials.

 Arlon PCB

 Arlon PCB

These include; low flow prepregs, polyimide products, epoxy derived products, and products having controlled thermal expansion.

Rogers PCB has a glass transition temperature of above 280C while that of Arlon PCB is above 250C.

This property enables both PCBs to withstand processes involving high temperatures like soldering without the need for lead.

Both PCBs have excellent electrical and physical capabilities.

In either case, you can easily fabricate multilayer boards, thanks to the laminates’ excellent dimensional stability.

They also have excellent flame retardant and heat-resisting properties.

Rogers 4350 VS Nelco PCB

Nelco PCB is ideal for digital applications requiring fast transmission of signals.

Just like Roger 4350 PCB, Nelco PCB is lead-free and ideal for environmental preservation efforts.

Nelco PCB

Nelco PCB

Both Nelco and Rogers 4350 have excellent thermal management and superior physical features.

You will also benefit from the low dielectric constant values offered by Nelco PCB.

However, Rogers 4350 has a higher transitional and decomposition temperature than Nelco PCB and will withstand higher operating temperatures.

Is Rogers 4350 laminate A High-Frequency Material?


Rogers 4350 possesses unique qualities compared to other standard traditional PCB materials making it ideal for use in frequencies beyond 300MHz.

What are the Applications of Rogers 4350 PCB?

Rogers 4350 PCB is suitable for use in applications operating at higher frequencies that restrict standard PCBs.

These PCBs are specifically designed for use in high volume and high-performance applications.

You can use Roger 4350 in the following applications:

  • Direct broadcast satellites for LNB’s
  • Antenna for microstrip patch
  • Power amplifiers and base station antennas for cellular base stations and personal PCS
  • Communication systems for spread spectrum
  • Identification tags for radio frequencies

What is the Dielectric Constant of Rogers 4350 PCB?

The dielectric constant of a Roger PCB depends on the dielectric constant (DK) of the laminate.

Also, the dielectric constant is the measure and comparison of a pair of conductors’ capacitance within the laminate’s vicinity to that in a vacuum.

Since the Dk of RO 4350 is low, it will store less energy but support a high electromagnetic energy flow rate (higher frequency).

Roger 4350 has two alternative sets of Dk values that arise from differences in test methods and test frequencies.

The design Dk or process Dk value represents the companies value during laminate design and engineering.

You can use this value to provide accurate and reliable results together with computer-aided-engineering (CAE) software.

The process Dk values for Rogers 4350 is 3.48 ± 0.05 and represents the dielectric characteristics under real-world operational conditions.

The specification Dk value of RO 4350 is 3.66 ± 0.05.

It is a value determined by either a single or multiple methods ideal for determining the Dk of a material.

In some cases, you can have a similar process and specification Dk values.

Are there Limitations to using Rogers 4350 PCB?

Yes, a few limiting factors are affecting the use of Rogers 4350 PCB. They include:

· Price

Rogers 4350 PCB costs a little more than most standard PCBs constructed using FR-4 material.

· Environment

The RO 4350 laminate contains trace amounts of halogen to enhance the flame retardant and heat-resisting properties.

Unfortunately, the added halogens are very reactive salts and pose a danger of environmental pollution.

What are the PCB Surface Finishing Options for Rogers 4350 PCB?

PCB Surface finishing will protect the exposed copper area in your printed circuit board from degrading environmental conditions such as oxidation.

It also ensures that the components connect smoothly to the surfaces of the Rogers 4350 PCB.

The following are some of the viable surface finishing options that you can choose from:

 Types of PCB surface finishes

Types of PCB surface finishes

Electroless-nickel-immersion Gold (ENIG)

It is one of the most popular e surface finishing technologies and comprises a thin, gold, solderable layer. It has a nickel barrier between the copper traces and the solderable gold layer, which protects copper traces.

ENIG is a low cost, lead-free, surface finishing method with excellent solderability and compliant to RoHS.

Hot Air Solder Leveling (HASL)

The technology is common with military and aerospace applications.

You can achieve great HASL finishing by holding the boards vertically with clamps before dipping them into flux baths and then into molten solder hot vat.

The finishing has a tin/led and requires hot air knives for leveling off to achieve a uniform thickness over the entire board.

However, you cannot use this technique for structures with high density interconnect.

Also, the method applies very high temperatures that can affect other thermos-sensitive materials in the PCB.

Immersion Tin

When you use this technique, you will have to deposit a thin layer onto the copper surface chemically.

It is ideal for high-speed circuits and sufficiently protects the underlying copper from oxidation.

However, you may face challenges arising from possible diffusion due to the proximity between copper and tin.

You should avoid using this surface finishing technique when working with two-sides assembly or when you intend to store the PCBs for long.

Otherwise, it provides optimal and faster circuitry and offers excellent protection for the underlying copper from oxidation.

Organic Solderability Preservative (OSP)/Entek

OSP uses water-based compounds that preferentially bind with copper and protects it before soldering.

It is a chemical process and possesses excellent anti-oxidative, heat, and moisture resistance properties.

Thus, thus protecting your PCB from harsh environmental conditions.

Using OSP removes all metal finishes, is lead-free, and you can quickly achieve a flat surface.

It is also RoHS compliant.

This technique is currently not as common as it used to be because the more organic layer is exposed to copper, and it also has a short lifespan.

Soft Gold Surface Finish

This technique is ideal for wire bonding applications.

Consequently, the soft gold will create a firm metallic bond with the wires and circuitry.

It protects the underlying copper and nickel from oxidation in the process.

The strong bonding between copper and gold enhances the PCB’s electrical conductive properties and provides very strong weld joints.

It is very durable and protects the PCB surfaces from wear and tear.

However good, it also has some challenges. The most notable, it causes porosity within the layers.

The copper is also exposed on the sides of the traces, and masks firmly stick on the gold.

Hard Gold

Hard gold constitutes a gold layer plated over nickel’s barrier coating.

It is stronger and more durable than soft gold and other surface finishes.

You will use hard gold finishing on PCB used in applications with mechanical contacts such as keypads and buttons due to its durability.

The only disadvantage of using hard gold is the high cost and poor solderability.

Immersion Silver

You can use immersion silver on PCBs lacking nickel and manufactured for high-speed signals.

It is more environmentally friendly than tin immersion.

However, immersion silver is not suitable for double-sided PCB assemblies.

It is easily contaminated and readily tarnishes when exposed to air.

It is also expensive and not ideal for long term storage.

Electroless-nickel-palladium-immersion gold (ENIPIG)

You will use it in PCBs that also need wire bonding.

Electroless nickel protects copper, preventing it from contacting other metals.

Palladium protects the nickel from corrosion, and gold covers the whole PCB, providing complete protection against oxidation.

ENIPIG provides more flat pad surfaces and has better solderability, thanks to the palladium layer.

The only disadvantage is that it is a little bit costlier than ENIG.

Are there Multilayer Rogers 4350 PCB?


You can have your Multilayer Rogers PCB constructed using only RO 4350 laminates or a hybrid comprising RO 4350 and FR-4 material.

Producing a hybrid will help you save on cost while achieving the desired product qualities.

RO 4350 has stable dimensional stability suitable for the fabrication of multilayer PCBs.

Specifically, the CTE of RO 4350 laminate on the Z-axis is low and reliably supports high-quality through-hole placement even under severe thermal shock.

Depending on your vendor, you can fabricate an RO 4350 PCB with up to 30 layers or even more.

Using a multilayer Roger 4350 PCB enables you to construct a more densely populated PCB that supports miniaturization.

You will use it to manufacture faster, smaller, and more powerful electronics.

What Determines Rogers 4350 PCB Price?

The overall cost of Rogers 4350 price depends on several factors classified as either primary or secondary value determinants.

Some of the primary cost determinants include:

Board Size

RO 4350 PCBs with bigger board sizes require more materials for fabrication, which also costs more.

The number of circuits required to fabricate the corresponding device will determine the size of the board.

Also, the PCB required to run industrial machinery will be larger than most if not all PCBs are required for home electronic devices.

The efficient use of space or the amount of area covered by useful components also significantly influences the price.

The board size is a factor of area, but the dimensions also add to the cost considerably.

Number of Layers

Multi-layered PCB boards are more expensive compared to single and double-sided boards.

Multiple layered PCB requires more time, materials, and work to manufacture hence the high prices.

The probability of error also increases with an increasing layer.

This facilitates the cost of ascertaining the lack thereof must be included in the pricing.

The price will always increase by at least a third of each layer’s cost added after the second layer.

Besides, the increase starts declining after the eighth layer.

Construction Material

Rogers 4350 laminate is a bit costlier than most standard PCB lamination materials though prices are still competitive.

Consequently, fabricating your PCB using purely RO 4350 will raise the cost of the PCB.

However, you can still produce a hybrid of RO 4350 with FR-4 material or any other compatible and cheaper high-frequency laminate at a lower cost.

Surface Finishing

Some surface finishing provides superior protection and product longevity, thus boosts product grade and cost.

Types of surface finishing techniques that favor all desirable aspects such as good protection, longevity, flat surface, etc. will cost more, comparably.

Sizes and Number of Holes

Hole sizes and the number is a critical determinant of the cost of Rogers 4350 PCB. Furthermore, the thickness of the material layers to drill also influence the PCB price.

Generally, you will pay more if the holes you are drilling are tiny and challenging to drill.

Super tiny holes need special tooling and skills to accomplish as opposed to larger holes.

More holes also consume more workforce and energy; thus, you will pay more.

For boards with more than eight layers, the price of drilling costs more.

So if the Rodgers 4350 PCB are economically produced, such PCBs that provide top-notched radio frequency (RF) performance.

This is because:

i. It has a very low dielectric constant, in fact, one of the lowest of all PCBs

ii. The dielectric constant is also very stable over a wide range of frequency

iii. It has a low dielectric tolerance and loss

iv. Can work for frequencies beyond 500 MHz

v. It has one of the best hole qualities

vi. It has a thermal expansion coefficient which is close to that of copper, which increases its durability

vii. Can provide table performance under harsh environmental conditions, such as high temperature

viii. It has excellent dimensional stability, which supports quality through-hole even in severe scenarios.

ix. The high transitional temperature of 280C makes it suitable for use in a high-temperature application

x. Easy to fabricate in bulk since it RO 4350 material requires no special treatment

xi. It is suitable for broadband applications

xii. Has improved impedance control

xiii. It has low water absorption and electrical noise

xiv. Low dissipation factor

 PCB Thickness and Aspect Ratio

Producing an RO 4350 PCB using thicker laminates is more difficult compared to thinner materials.

The cost of thicker RO 4350 is also higher because it takes more time and works to produce.

Minimum Trace Space

Trace space is the gap between copper features on the board.

You will pay at least 5 or 10% more if you need a board with less than


Depending on your vendor, you may need to buy a given minimum of product quantity or not.

Either way, most manufacturers have a minimum fixed price that you will pay for an order.

Similarly, most manufacturers will also offer vast amounts of discounts for buyers who are purchasing in bulk.

You are likely to pay less per unit price if you order for more products.

How do you Test the Quality of Rogers 4350 PCB?

You can test the quality of Roger 4350 PCB using diverse types of PCB quality tests recommended by Electronic contract manufacturers.

Some of the test you can conduct include:

Rogers 4350 PCB

Rogers 4350 PCB

  • X-ray inspection test to detect defects that you cannot visually recognize
  • Flying-probe test checks on defects on capacitance, shorts, resistance, inductance, opens, and diode issues.
  • Burn-in test to detect the potential early failure and establish the load capacity
  • Functional tests such as peel test, contamination test, etc. ensure that your PCB works correctly.

What Factor should you Consider when Choosing Rogers 4350 PCB Laminate Material?

Consideration of crucial Roger 4350 laminate features will help you fabricate a PCB with excellent processability and high reliability.

The following factors will significantly determine your preference for RO 4350 laminate.

· Product Performance

Product performance is a critical consideration when choosing the RO 4350 material.

You should have a deeper understanding of the thermal properties, electrical properties, and reliability of the laminate.

Besides, you should know the product your PCB will power.

You should select RO 4350 if your product requires a PCB with low Dk tolerance and loss, stable dielectric constant, dissipation factor, and low dispersion.

It also has excellent impedance control and little coefficient of variation concerning environment and frequency.


You should consider the number of times of pressing performance and temperature performance.

The material has an excellent fire rating and can withstand very high levels of operating temperatures.

The mechanical toughness and stickiness are also vital.

Material Availability

You should be able to acquire Rogers 4350 PCB on time.

Ensure that you check with your vendor if they have enough supply of the laminate in-store before placing an order.

A prior inquiry is essential since procuring high-frequency boards like RO 4350 can even take up to three months in some cases.


The price sensitivity of your product will determine the cost.

Rogers 4350 laminates for the fabrication of medical, military, industrial products, etc. will be more expensive than those for consumer products.

Law and Regulation

You must use the Rogers RO 4350 per the guidelines of the local laws and regulations.

Ensure that you integrate its use with the environmental protection laws keeping note of the RoHS and halogen-free compliance where needed.

How do you Manufacture Rogers 4350 PCB?

Manufacturing RO 4350 PCB will depend on whether it’s a single-sided, double-sided, or a multilayer PCB.

Single-layer and double-layer RO 4350 PCBs are easier to fabricate compared to multi-layered PCBs.

Single-layer Boards

Single-layer PCB is the simplest to make and is ideal for simple operations. You will apply a layer of directing material, usually copper, on one side of the PCB.

Double Layer Boards

Here, you will apply a thin layer of directing material on both the board’s base sides.

You will then connect the circuits on both sides of the board by drilling through holes.

Multiple Layered Boards

A multilayer PCB has over two copper conductive layers, which helps increase the area available for wiring.

You will need to incorporate layers of prepreg between the core material and then subject them to high heat and pressure through the lamination process.

High temperature and pressure melts the prepregs and joins them together by eliminating all air and space between layers.

After heating at elevated pressure, set the material to cool to achieve a stable, rigid multilayer board.

Cover the conductors around the corners using resin and melt adhesive materials to stick the layers into a single place.

Ensure that you follow all the fabrication guidelines provided for the processing of high-frequency laminates by Rogers cooperation.

Which Safety Issues are Associated with Rogers 4350 PCB?

Rogers PCB is fabricated using different materials that may affect you if poorly handled.

Though Roger 4350 PCB is RoHS compliant and minimizes the use of hazardous substances such as lead, mercury, PBB, Cr VI, and PBD, you should still avoid prolonged exposure.

Prolonged exposure can increase the risks of occupational asthma, dermatitis, and ocular manifestations.

To avoid such medical complications, ensure that you adhere to the following precautions:

  • Wear protective safety wears when frequently handling PCBs and related components.
  • Ensure great workstation ventilation
  • Set a clutter-free work station
  • Handle the solder carefully and diligently
  • Select and use appropriate tooling
  • Avoid keeping food products in the workstation.
  • Use sufficient lighting systems.
  • Keep the work station clean and at appropriate temperatures.
  • Conduct regular medical checkups for exposed employees.

Is there a Standard Thickness for Rogers 4350 PCB?

The thickness of a Rodger 4350 PCB depends on its functionality and performance.

However, there are industrial PCB standards that are universal to PCB fabrication.

Consequently, you will realize that majority of the PCB measure around 1.57 mm.

This figure is commonly observed industry-wide because it was the bakelite sheets’ initial size during the early stages of PCB construction.

Other common industrial standards are 0.78mm and 2.36mm.

That said, you can still fabricate a PCB with the desired thickness and parameters suited for your application.

Some of the factors that will determine your PCB thickness include:

  • Number of layers
  • The thickness of RO 4350 laminate
  • Copper thickness
  • Signal type
  • Vias type
  • Operating environment
  • Drill hole equipment

What Factors Affect the Efficiency of Rogers 4350 PCB?

The efficiency of a Roger 4350 PCB relies on the following key factors:

  • The PCB thickness
  • Type of transmission-line metal
  • Type and characteristics of the solder masks
  • Type of surface finishing
  • The copper surface roughness
  • The thermal and electrical properties of the laminate
  • The operating temperature of the product

How long can Rogers 4350 PCB Last?

The service life of your Rogers 4350 PCB will depend on the operating environmental conditions.

Your PCB will wear faster under high temperatures, high humidity, and corrosive conditions than under standard room conditions.

Roger 4350 PCB materials usually have excellent electrical and mechanical properties with temperature.

Specifically, the laminate RO 4350 is manufactured to provide reliability and long-term service under harsh conditions.

The service life of the Roger 4350 PCB is application dependent and will vary from one end-use product to the other.

In some products, the PCB can last the entire life of the product, while in others, you will need to replace it every 2 to 3 years or less, depending on its use.

How can you Determine the Thickness of Copper for Constructing Rogers 4350 PCB?

For standard applications, you will have your Rogers 4350 PCB constructed using 1 ounce (oz).

The thickness results from pressing and spreading 1 oz of copper over one square foot area.

If you have different specifications requiring thicker sizes than 1 oz, you can increase the trace width or copper weight.

You should only increase these parameters after determining that 1 oz will not carry the system’s electric current.

To appropriately determine copper thickness, consult with design engineers on how to best suit your PCB needs.

With this information, I am sure you can easily choose the right Rogers 4350 PCB.

At Venture Electronics, we guarantee you high-performance Rogers 4350 PCB materials.

Contact us now for all your Rogers PCB material needs.

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