Your Leading Isola PCB Supplier in China

Venture is the top manufacturer and supplier of Isola PCB throughout the world. We have more than 10 years’ experience in manufacturing Isola PCB that you can trust on. We assure you to give you the best and high-end Isola PCB you need.

All of our PCB is a high-performance because it is made from Isola materials. Venture Isola PCB is widely used in electronic end-markets including communications equipment and networking, computers, and high-end consumer electronics applications.

Venture can manufacture Isola PCB for products designed for use in the advanced automotive, military, medical markets, and aerospace. Venture Isola PCB meets all the industry standards such as IPC 6012 CLASS 3/3A, AS9100D, ISO 9001, MIL-PRF-31032, MIL-PRF-55110, and more.

We have led the Isola PCB industry for over 10 years, providing some of the most innovative printed circuit board technologies and the highest quality standards in the industry.

For small quantity and large scale production from the simplest boards to the most complex designs, you can count Venture to meet all your needs.

Additionally, we provide state-of-the-art technology, customized service, competitive pricing, and process innovation to our clients. As one of the biggest and most experienced Isola PCB manufacturers around, Venture takes great pride in shipping world-class Isola PCB products and customer service.

Our high-quality Venture Isola PCB and other Venture products are supported by dedicated and professional staff with experience in all aspects of the PCB industry.

We offer a 24/7 tech and support team. At Venture Electronic, you can get an excellent after-sale service. Venture Electronic will be your great business partner for your business!

Contact us today!

Isola PCB: The Ultimate FAQs Guide

In this guide, you are going to learn everything you need to know about Isola PCB.

More importantly, you will learn about properties, uses, quality certification, features, laminate material and quality testing amongst others.

Keep reading if you want to be an expert in Isola PCB.

What is Isola PCB?

This is a complex printed circuit board fabricated utilizing high-performance Isola PCB laminate materials.

It incorporates proprietary resin constituents engineered to meet greatly demanding performance requirement.

This type of PCB is employed in the most vital electronic equipment like top-end consumer electronics and aerospace equipment.

Multilayer Isola PCB

How does Isola PCB compare to Taconic PCB?

Isola PCB mainly use dielectric prepregs and copper-clad laminates.

These types of printed circuit board materials are mainly used in the manufacture of advanced multilayer PCB.

On the other hand, Taconic PCB majorly employs RF prepregs, laminates and flexible interconnect and high-speed digital materials.

They are applied in among the world’s most inventive communication systems.

Taconic PCBs are the best for the rapidly advancing wireless communication sector.

Taconic PCB

Which are the Types of Isola PCB Materials?

Some of the main materials include:

· Prepreg

Prepreg is a term employed in PCB industry which is a short form of “previously impregnated”.

It is a dielectric material which gives electrical insulation and additional features.

Prepreg is produced through fiberglass fabric impregnation with uniquely formulated resins.

The resin integrates distinct physical, electrical and thermal characteristics to the prepreg and is vital to the correct operation of an Isola PCB.

It may be integrated into a copper clad laminate or sold as an independent component.

· Copper Clad Laminates (CCL)

CCL comprise of an internal prepreg laminated layer on both ends having a thin copper foil layer.

The lamination is attained by compressing together a single or more prepreg and copper plies under extreme vacuum, pressure and heat conditions.

How is Multilayer Isola PCB Constructed?

 Multilayer Isola PCB

CCL and prepreg are used in the fabrication of multilayered Isola PCBs through a complex operation involving multiple processes, which are usually repeated.

Typically, the laminate’s copper surfaces are etched to produce an electronic circuit.

Afterwards, you assemble the etched laminates into a multilayer structure through insertion of one or more insulating prepreg plies between every etched laminate.

Holes drilling and plating then follows to create electrical interconnections among the PCB layers.

The resulting Isola PCB is a complex interconnection gadget on which semiconductors and additional parts are mounted.

What are the Applications of Isola PCB?

Isola PCB prepreg and laminate materials find application in a myriad of advanced electronics and equipment including:

• High-end consumer electronics
• Medical equipment applications
• Aerospace applications
• Network and communications devices
• Military electronic applications
• Automotive applications
• Industrial equipment applications

Is Isola PCB better than Arlon PCB?

Both Isola PCB and Arlon PCB mainly constitute microwave/RF materials that offer the electrical performance necessary in frequency-based applications like communication systems.

They employ high-performance prepregs and laminate materials having specific mechanical, thermal, and electrical properties that beat those of ordinary FR-4.

Arlon PCB mainly uses ceramic-filled fluoropolymers, fluoropolymers (PTFE) and low-loss ceramic hydrocarbon thermoset board laminates.

These materials offer the electrical performance required in frequency-reliant PCB applications throughout diverse and demanding markets.

Though the two types of PCB are ideal for high-performance applications, Isola PCB is the better option when thermal performance is of concern.

This product has high thermal performance due to the type of resin system it uses, which is a flame retardant polyimide-based.

Moreover, Isola PCB enhance signal integrity, ensures excellent processing, AOI fluorescence and UV blocking.

Arlon PCB

What is the Material used to make the Resin System of Isola PCB?

Isola PCB uses no-flow prepregs that are polyimide-based for high temperature PCB applications.

They use a flame retardant, polyimide resin system ideal for applications needing superior thermal properties and performance.

The Isola prepreg materials apply a thermoplastic and polyimide blend resin, completely cured without using Methylenedianiline (MDA).

This leads to a polymer having a high Tg, lacking the characteristic problems of low initial bond strength and brittleness.

Hence, Isola PCB resin system is a better alternative than conventional thermoset polyimide resin structure.

What are the Features of Isola Prepreg Materials?

Here are the main features of Isola PCB materials:

• Have greater thermal performance with high epoxy composition
• Sustains bond strength at elevated temperature
• Long lasting resin system
• Enhanced processing because of less brittleness
• Reduced delamination due to machining
• Halogen-free options available

What is the Difference Between Isola 185HR and Isola 370HR?

185HR Isola PCB prepreg and laminate materials are fabricated utilizing Isola’s copyrighted technology, strengthened using electrical grade glass (E-glass) fabric.

The system offers a reduced Z-axis expansion, decomposition temperature of 340 degree Celsius and lower loss in comparison to competing products.

Moreover, the Isola 185HR system is as well UV blocking and laser fluorescing for maximal feasibility with:

• Automated Optical Inspection systems;
• Photoimageable solder mask imaging; and
• Optical positioning systems.

On the other hand, 370HR Isola PCB prepregs and laminates are manufactured applying copyrighted high performance FR-4 multifunctional epoxy resin complex.

Isola 370HR is engineered for multilayer PCB.

It has a glass transition temperature of 180 degree Celsius ideal for applications requiring exceptional CAF resistance and optimal thermal performance.

This system offers chemical, mechanical and moisture resistance qualities that are equivalent to surpass the performance of ordinary FR-4 materials.

Furthermore, 370HR has proven performance and ease of processing in serial lamination designs.

Which are the Types of No Flow Prepreg used in Isola PCB Construction?

Some of the main options include:

i. A11 Family

The A11 class of no-flow Isola PCB prepregs includes proprietary resin structures.

They are particularly designed for maximal execution in bonding applications needing uniformity in lamination and lowest resin flow.

ii. FR406N Family

Isola supplies a FR406N variety of low-flow and no-flow PCB prepregs constituting proprietary resin systems.

They are especially prepared for optimal execution in bonding applications needing lamination consistency and least resin flow.

FR406 lo-Flo and FR406 No-Flo materials guarantee distinct thermal properties suitable for use in:

• Die cavity board application
• Heat sink bonding application
• multilayer rigid-flex applications

iii. P25N Family

Moreover, there is a P25N variety of polyimide-based no-flow Isola PCB prepreg materials perfect for high temperature circuit board applications.

The products are appropriate for industrial, commercial or military electronic applications needing exceptional performance and absolute thermal features.

Being no-flow Isola PCB material, P25N incorporates thermoplastic and polyimide mix resin, totally cured without utilizing Methylenedianiline.

The develops a high Tg polymer with no characteristic brittleness difficulties and reduced inceptive bond strength related to ordinary thermoset polyimides.

Which are the Laminate Materials used in Isola PCB?

Let’s look at some of the common laminate materials used during manufacture of Isola PCB:

i. Astra MT77

Astra MT77 Isola PCB laminate materials has outstanding electrical features which are very steady over a wide temperature and frequency range.

It has a dielectric constant that is steady between -40 and +140 degree Celsius as far as W-band frequencies.

Furthermore, Astra MT77 provides an exceptionally low dissipation factor of 0.0017.

This makes it an inexpensive option to PTFE and alternative commercial microwave PCB laminate materials.

The laminate material is perfect for many of present microwave/RF PCB designs.

ii. DE104

DE104 provides extraordinary thermal resistance because of its unique resin system and a low CTE in the Z-axis.

It has a glass transition temperature of 135 degree Celsius (DSC) and decomposition temperature of 315 degree Celsius.

The laminate time to delamination at a 260 degree temperature is 12 minutes.

The material is catalogued as FR-4 and may be processed utilizing ordinary parameters.

iii. ED130UV

You can as well find Isola ED130UV epoxy laminate that allows you to satisfy the specifications of constructing PCB utilizing UV blocking materials.

These types of Isola PCB laminates employ a difunctional epoxy resin base having advanced tetra functional epoxy face plies.

This helps in UV blocking and fluorescence if utilizing Automated Optical Inspection.

iv. FR402

FR402 comprise of an advanced tetrafunctional epoxy resin structure formulated for multilayer Isola PCB applications that need performance properties surpassing difunctional epoxies.

FR402 formulation is engineered to improve accuracy and throughput of laser-based AOI devices.

It provides excellent resistance to thermal and chemical degradation.

v. FR406

FR406 Isola PCB laminate establishes the industry benchmark for high performance epoxy printed circuit board materials.

It is designed to fulfill the specifications of multilayer PCB, while retaining conventional FR-4 processing.

The product provides extraordinary thermal and chemical performance, enhanced dimensional control and product consistency.

vi. FR408

FR408 is a type of high-performance FR-4 epoxy PCB prepreg and laminate material designed for improved printed circuit board applications.

It has low dissipation factor and low dielectric constant.

This makes it fit for broadband PCB designs needing enhanced signal integrity or faster signal speeds.

This type of Isola PCB material is feasible with majority of FR-4 processes.

This property enables you to use FR408 minus incorporating complexity to present fabrication methods.

vii. FR408HR

This is a proprietary high-performance Isola material with a Tg of 230 degree Celsius (DMA).

It is a FR-4 system suitable for multilayer printed circuit board applications that need optimal reliability and thermal performance.

FR408HRprepreg and laminate materials are fabricated using Isola’s copyrighted high-performance multifunctional resin complex, strengthened utilizing E-glass fabric.

The resin system offers a 30 percent boost in Z-axis expansion coupled with 25 percent extra electrical bandwidth than competing alternatives.

These features in addition to excellent resistance to moisture at reflow, form a product that closes the void from both electrical and thermal perspective.

FR408HR Isola PCB material is as well UV blocking and laser fluorescing for maximal compatibility with:

• Photoimagable solder mask imaging;
• Optical positioning systems, and
• Automated Optical Inspection systems.

Are there Quality Certifications for Isola PCB?

Yes, here are the main quality standards that the best Isola PCB should comply with:

• RoHS certification
• REACH certification
• ISO certification
• UL certification

Which are the Different Flame Retardant Mechanisms used in Isola PCB?

Flame retardants satisfy their role chiefly through either chemical or physical action.

Physical action of Isola PCB flame retardants can be categorized into three modes;

• Cooling:Additives trigger an endothermic process that cools the substrate down to a temperature lower than that needed to withstand the combustion process.
• Protective layer formation: A gaseous or solid protective layer shields the combustible layer from the gaseous stage.

The oxygen needed for the process of combustion is excluded and transfer of heat is hindered.

• Dilution:The system integrates fillers that on decomposition generate inert gases, which dilute the fuel in the gaseous and solid phase.

This ensure that the system does not exceed the minimum ignition level of the gas blend.

Likewise, the chemical action of Isola PCB flame retardants can be categorized into two modes;

• Solid phase reaction:The flame retardant promotes the formation of a carbon layer on the surface of the polymer.

This can happen through the flame retardant dehydration creating a carbonaceous layer through cross linking.

The resulting carbonaceous layer serves as an insulation film, hindering the material from decomposing further.

• Gaseous phase reaction:There is interruption of the free radical medium of the process of combustion that occurs in the gas phase.

This in turn stops the exothermic processes, cooling down the system and suppressing the flammable gases supply.

Between Isola PCB and Nelco PCB, Which one is Better?

In terms of performance, Nelco PCB is better than Isola PCB. This is because the former offer both superior mechanical and thermal performance.

All Nelco PCB materials comply with RoHS standards and most offer CAF resistance high thermal dependability, making them compatible with lead-free assembly.

In addition, compared to Isola PCB, there are several types of Nelco PCB materials consisting of:

 Nelco PCB

• FR-4 materials
• High speed epoxy materials
• High glass transition temperature materials
• Improved materials like cyanate ester, BT and polyimide.

What is the difference between Isola PCB and Rogers PCB?

Rogers PCB and Isola PCB are similar in that they both ensure exceptional dimensional stability, a feature important in the construction of varied dielectric multilayer PCB.

They are extensive utilized in high-speed application including high speed electronics, communication devices, and aerospace satellite among others.

Nevertheless, Isola PCB guarantees high thermal reliability due to the flame retardant feature of its prepreg materials.

On the contrary, most Rogers PCB materials are non-brominated implying that they lack the flame resistance property.

Rogers PCB

Which are the Main Types of Flame Retardants used in Isola PCB?

You can choose any of the following:

· Halogenated Flame Retardants

Halogenated flame retardants make part of the largest category of flame retardants utilized in Isola PCB.

Halogens consists of 5 chemically-linked, very reactive non-metallic elements within the periodic table’s group 17.

They include Astatine, Iodine, Bromine, Chlorine and fluorine.

The synthetically formed element 117 is found in group 17 and can as well be categorized as a halogen.

However, Astatine and element 117 cannot be considered for making flame retardants.

This is because Astatine is one of the rarest elements that exists on earth only due to radioactive decomposition of heavier elements.

On the other hand, element 117 is completely artificial having a half-life lower than 1 second.

· Non-halogenated Flame Retardants

Compounds containing phosphorous are the most common in the group of non-halogenated PCB flame retardants.

DOPO is the popularly used phosphorous compound, which is reacted as supplemental flame retardant.

The mechanism of the flame retardant is that thermal decomposition converts the phosphorous compound to phosphoric acid.

Subsequently, the oxygen comprising polymer gets dehydrated by the phosphoric acid and results to charring.

Which are the Micro-sectioningSteps Isola PCB Fabrication?

Also known as cross-sectioning, micro-section is a method applied to conduct a failure mode inspection or to characterize Isola PCB materials.

It is as well important in revealing an interior segment of a PCB.

Being a destructive process, it needs specimen encapsulation to give protection, support and stability.

Isola PCB failures that you can investigate using micro-sectional analysis comprise of:

• Raw material assessment.
• thermo-mechanical failures
• component defects
• Shorts or opens
• Voiding
• processing failures associated with solder reflow

A micro-sectioned Isola PCB may be efficient for observing and examine a number of conditions.

Cross-sectioning is normally employed in failure analysis to evaluate comparisons of PCB materials by variations in structural forms.

These variations can express damage by fatigue, thermal cycling, or embrittlement.

This destructive method of analyzing the quality of PCB works by revealing cross-sectional outlook of a microstructure at a particular plane.

The plane is usually the axis of vias or through holes within accuracy tolerance of +/- 10 percent of thickness of plated material.

Since it is a destructive analysis instead of a real PCB, test samples are always utilized from the same printed circuit board.

The micro-sectioning process starts with preparation of sample.

You identify the section of interest and mark it carefully.

It may be essential to remove components from around the section of interest. You then follow this by the:

• Mounting;
• Sawing;
• Grinding;
• Polishing, and
• Staining of the sample

Eventually, you record and analyze the findings depending on the images.

At the end of these steps, the section of interest is prepared ready for SEM analysis or optical microscopy.

Micro-sectioning may be a very instrumental technique for the analysis of Isola PCB.

Thus, the process should be customized for the parts of the printed circuit board.

Which are the Factors that Affect the Permittivity (Dk) and Loss Tangent (Df) of Isola PCB?

The key factors that affect the permittivity and loss tangent of Isola PCB include:

· Resin Content

Resin content percentage differences have substantial impacts on the Df and Dk values.

The percentage of resin content differs depending on glass style, target thickness for a specific glass style, and fabrication tolerance.

Different Isola PCB laminate thicknesses require different glass styles and eventually varying resin content to attain the needed thickness.

· Temperature

The substrate electrical performance will differ with the PCB’s operating temperature.

You should factor in the effects of materials’ increased temperature because of localized heat produced by the parts installed on the PCB.

Using lower Df and lower Dk Isola PCB gives a steady performance through a broader temperature range.

· Differences in Construction

The characteristics of PCB laminate are based on the construction since each is created utilizing different resin content and glass style.

Knowing the differences in Df and Dk values for sole ply and dual ply PCB laminate constructions for similar thickness is essential.

· Resin Systems Differences

Based on resin content, every resin complex will have varying Df and Dk values.

A popular mistake is substituting one resin system with another without completely comprehending the variations in material performance.

This commonly results in Isola PCB that do not work totally.

What is the Relationship between Glass-to-resin Ratios on the Laminate Dielectric Properties of Isola PCB?

Laminates employed in the fabrication of Isola PCB are complex materials constituting of a resin matrix, copper foil, and reinforcement.

It is possible to calculate the dielectric constant of a printed circuit board laminate.

There exist a number of theoretical prototypes that have been advanced to estimate the dielectric attributes of a specific laminate composite.

The primary factor in these prototypes needs comprehension of the dielectric characteristics of the reinforcement and resin.

Generally, the key factor affecting the dielectric features of the consistency of the laminate is the glass-to-resin ratio variation.

The measured dissipation factor and dielectric constant of the complex will change when you vary a number of parameters.

Variation of frequency of performing the measurement or the laminate thickness by removing or adding resin can bring the change.

Thickness variation are typically because of differences in resin weight per laminate’s unit area and the glass fabric dielectric thickness.

The dielectric features of resin have an instrumental purpose in determining the general dielectric characteristics of an Isola PCB laminate.

Laminates manufactured from resin systems having lower Df values compared to glass generally have lower Df measurements with slimmer glass.

However, resin systems having higher Df compared to glass offer lower Df values with thicker glass and lower Df with slimmer glass.

What is Rheology in the Fabrication of Isola PCB?

In the manufacture of printed circuit boards, rheology is the study of materials flow when subjected to pressure and heat.

It enables you to characterize a material’s viscosity as a function of applied shear, heat rise rate and temperature among other factors.

This allows you to obtain data related to press lamination.

The standard model for describing the rheology of a PCB materials entails two parallel plates having material to be designated in the middle.

In the pattern, one plate drifts parallel to the other.

The impedance to movement designates the viscosity of the PCB material in the middle of the plates.

 Isola PCB

Is DSC Testing important during the Construction of Isola PCB?

Differential Scanning Calorimetry evaluates the heat flow changes in PCB material as it is heated from room temperature to some preset maximum temperature.

Alternatively, DSC is measurement of heat flow changes an Isola PCB material cools from the maximum temperature to a lower temperature (beyond Tg).

It is referred to as “differential” since there is usually an aluminum reference determined at the same period as the sample.

This makes the “difference” between the sample and the reference the real measurement.

Chemical reactions and several physical changes, like melting lead to the release or absorption of thermal energy as they happen.

By assessing the thermal exchanges, the DSC captures a sequence of the physical and chemical state transformations that occur in the sample.

DSC testing of can show a great deal about the Isola PCB resin systems you are utilizing in comparison against those of recognized material.

Moreover, you can determine certain or all of these parameters from the Differential Scanning Calorimetric testing:

• The melting point of the PCB resin system.
• Temperature at which cure starts and its duration.
• Extent of prepreg aging.
• Distinction in cure between B-stage and C-stage layers within a multilayer PCB.
• The extent to which the laminate is cured.

DSC testing of Isola PCB can as well provide a measure of the glass transition temperature of the epoxy systems.

This is dependent on establishing energy variations related to a variation in the relation between amorphous and crystalline sections within the polymer.

However, polyimides do not display this transformation as distinctly.

Therefore, the Tg happens across a broader scope than epoxy.

This makes Tg sensing more challenging by DSC in comparison to TMA.

At Venture Electronics, we will help you choose high grade Isola PCB material for optimal performance.

For any inquiries or questions, contact Venture now.