YellowPCB

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  • Wide range of yellow PCB

What is the yellow PCB’s material?

The material will always play an important role in every toy you create. The material’s characteristic are an necessary factor to evaluate and classify before apply it.

Ø Density:
The density of each volume of the dielectric may be metered using the yellow PCB.

Ø Bending Strength:
When reveal to pressure, the yellow PCB can support or bending.

Ø Peel tensile strength and delamination:
The copper and insulator surfaces on the yellow PCB can take to bond. Even when chemical and heat stress is used to the bonding, it could be still holds up.

yellow PCB’s material
Black Silkscreen

Black Silkscreen on a Yellow Solder Mask

Yellow’s measured solder mask might help you get your intended results. This coppery and dark-colored yellow solder mask is the suitable option for you if your PCB is some good piece of art or you have something excellent design.

With a black silkscreen, you may even can utilize a yellow solder mask. If you do so, you’ll see that the yellow PCB has no problems with cleanliness. Based on the remarkable performance metrics, the yellow-colored PCB is regarded along with red and green-colored PCBs. Always keep in mind that it must choose the appropriate PCB color for your necessary elements.

Price Calculation for yellow PCB:

It is wrong to understand the cost of just about any PCBs. Although there is no unique way for calculating the price of a PCB of any details, you may determine the price of a yellow PCB by following these aspect:

1.For the yellow PCB, the number of layers.
2.The PCB’s physical size.
3.The yellow PCB’s appearance and thickness.
4.Slots and perforations are included.
5.The number of yellow PCB components you’ll need to assemble it
6.Electrical inspections

Price Calculation

Venture is a leading manufacturer of innovative color PCB in the industries such as Yellow PCB. Through our advanced technology, we can manufacture excellent quality yellow PCB for your projects.

Venture is more than 10 years in supplying yellow PCB to different industries throughout the world. So, if you need excellent quality and certified manufacturer of yellow PCB, Venture is the right place for you.

Your Leading Yellow PCB Supplier in China

Venture has been providing different colors of solder masks for PCB to different industries. As a leading color PCB providers in China, Venture can manufacture yellow PCB for your projects.

If you are looking for a reliable manufacturer and supplier that offers excellent quality yellow PCB, Venture is the right place for you. We have 10 years of expertise in manufacturing yellow PCB for your design.

As a leading color PCB supplier, Venture can provide the common solder mask color for PCBs. These are red, white, black, yellow, blue, or green.

You will find these colors at most board houses.

Venture also can customize the solder mask color you desired. We can optimize and customize every color according to your needs.

If your PCB is some cool work of art or you have some fantastic routing, then this coppery and dark-colored yellow solder mask is the right choice for you.

You can use a yellow solder mask with black silkscreen. If you do that, you will see that yellow PCB doesn’t give any problem with cleanliness.

This yellow color PCB is considered along with red and green colors, depending upon its outstanding performance parameters.

Along with our highly trained engineers and designers, Venture is capable of manufacturing a wide range of yellow PCB for your projects.

Whether you order small or large quantities of yellow PCB, you are always welcome at Venture.

At Venture, you can choose the right color for your next project.

Contact us now!

Yellow PCB: The Ultimate FAQ Guide

Yellow-PCB-The-Ultimate-FAQ-Guide-1

Let’s look at the fundamental aspects you should consider when choosing yellow PCB.

What is Yellow PCB?

This is a printed circuit board that will offer a mechanical foundation and joins the electrical parts and it uses yellow soldering mask.

Also, it offers high contrast between all the empty spaces, planes, and the traces in the yellow solder masks.

It will provide a suitable design and work, and is also easy to clean.

 Yellow PCB

 Yellow PCB

What are the Material Characteristics to Look for When Selecting Yellow PCB Material?

Material characteristics are an important aspect you should consider and you can categorize them:

Mechanical Characteristics

  1. Bending Strength

This is the capacity of the yellow PCB to resist breakage or deformation when you expose it to stress.

  1. Density

This is the measure of the mass for each volume for the dielectric.

  1. Peel Strength

This is the capability of the layers of copper and the dielectrics to continue bonding. The bonding should endure even when you expose it to thermal and chemical stress.

  1. Time to delamination

This is how you will measure time it takes yellow PCB layers to remain together as you expose them to moisture and temperature.

Electrical Properties

  1. Dielectric Constant

This will affect the integrity and impedance of the yellow PCB substance. Besides, it should have a constant value over wide frequencies, especially in high-speed usages.

  1. Relative Permittivity

This is also known as relative dk. It is how you will measure the yellow PCB absolute permittivity as a ratio to the vacuum permittivity.

  1. Surface Resistivity

This is how you will measure the resistance of the dielectric material’s surface to the flow of electricity. Because it is susceptible to temperature and moisture, it should be set to a high value to preserve the integrity of a reliable signal.

  1. Volume Resistivity

This is how you will determine the volume resistance of the dielectric. It must be high to preserve the isolation between the layers.

  1. Dissipation Factor

This is how you will measure the amount of power loss of the yellow PCB material. It is critical for analog frequencies above 1GH because the dissipation factor grows with an increase in frequency.

  1. Electrical Strength

This is the ability of the yellow PCB to withstand electrical breakdown, especially in the z-direction.

Thermal Properties

  1. Glass Transition Temperature

This is the temperature at which the yellow PCB’s substrate reversibly transitions from hard to soft. It must also be lower than the solder’s melting point.

  1. Decomposition Temperature

This is the temperature at which the yellow PCB substrate irreversibly disintegrates. Furthermore, it should be less than the solder’s temperature.

  1. Coefficient of Thermal Expansion

This is the capability of the yellow PCB to expand when you expose it to heat, and it should be as low as possible.

  1. Thermal Conductivity

This is the rate of heat movement within the yellow PCB material. Insulators should have a low value, whereas conductors should have a high value.

Chemical Properties

  1. Methylene Chloride Resistance

It specifies the amount of the volatile hazardous solvent, methylene chloride, that you will use in the Fabrication of yellow PCB. For dielectrics, it should be less than or equal to 0.2 percent.

  1. Water Absorption

It emphasizes the quantity of moisture that yellow PCBs absorb when you submerge them. Most materials have a value of less than 0.2 percent.

It may have an impact on the dielectric’s thermal and electrical characteristics.

  1. Combustibility

This is the time it takes for the yellow PCB material to burn once you ignite it. For each specimen, the time for yellow PCB material should be set to 10 seconds.

This is also a standard under the Standard for the Safety of Flammability of Plastic Materials for Parts in Devices and Appliances.

Which are the Types of Copper Foil Used in Yellow PCB Construction?

Copper foils are thin conductive layers whose composition is copper. The types of these copper foils are:

  • STD-Type E or Electrodeposited Copper Foil
  • AR-Type W or rolled-wrought copper foil
  • ANN-Type E or annealed electrodeposited copper foil

Flexible Yellow PCB

Flexible Yellow PCB

How Many Reflow Recycles can Yellow FR-4 PCB Materials Endure?

The answer to this depends on several factors.

Some FR-4 PCB materials ensure up to 22 reflow recycles with four peaking at a temperature of 270°C. The material can degrade after 22 reflow recycles and the components may remain intact.

For you to have several reflow recycles, it is suitable to select high-grade materials that have over six layers. Also, ensure the thickness is greater than 1.6 mm.

What is the Recommended Decomposition Temperature (Td) and Glass Transition Temperature (Tg) for Lead-free Yellow PCB Soldering?

Decomposition temperature is the temperature at which this material will decompose.

The higher reliability lead-free yellow PCB soldering requires a decomposition temperature equal to or greater than 340°C.

Glass transition temperature is the temperature in which this PCB changes from a stiff glass-like to an elastic plastic-like state.

The temperature for this to occur is from 130 °C and above.

Which are the Types of Curing Systems Used in Yellow PCB?

These are:

Dicy Systems

Dicyandiamide [Dicy] is the most popular curing system for this epoxy. The Td value it offers is around 300°C and 310°C.

Non-dicy Systems

An example is a Phenolic Cured Epoxy whose average Td value is around 330°C and 350°C. This makes it offers high resistance against higher temperature values.

What is the Difference Between Buried Via Hole and Blind Via Hole in Yellow PCB?

A buried via hole is a hole running between one or more inner layers. You will often use a mechanical drill to form them.

A blind via hole is a hole that goes from an exterior layer to an inner layer, but not through the PCB. To form blind via holes, you will use a hand tool or laser technology.

Is it Possible to Combine Buried Via and Blind Via during Fabrication of yellow PCB?

Yes, this is possible mostly in High Density Interconnect (HDI) yellow PCBs

What is the meaning of Aspect Ratio in Yellow PCB Fabrication?

This is the connection between the diameter and length of a hole.

Let us look at an aspect ratio of 8:1 as an example.  It indicates that the hole diameter is 0.20 mm in a 1.60 mm thick yellow PCB.

1.1 is the limit aspect ratio for microvia in HDI systems, though 0.7-0.8:1 is desirable to facilitate plating.

How does High-Frequency vs. Yellow HDI PCB Compare?

Here is how these two compare:

High-Frequency PCB

This is a PCB that you will use for signal transmission in several applications like microwaves, mobiles, etc.

They come with high-frequency laminates that are hard to fabricate as they require the maintenance of thermal heat transfer.

Besides, they are sensitive to noise thus come with higher impedance tolerances.

HDI PCB

This is a PCB that has more wiring density per unit area.

They use lighter materials that enable better performance and lowering the risk of overheating.

Besides, they are physically reliable in that you will not compromise the connections.

They are compact and offer sharper signals since the signals travel a small distance during transmission.

Which are the Different Types of Yellow HDI PCB According to IPC-2226?

These are:

Type I

This design depicts a yellow HDI PCB that uses both microvias and conductive vias for connections.

Type II

The yellow HDI boards have plated microvias, plated buried vias, and maybe PTHs for surface-to-surface connections.

Type III

Here, the yellow HDI boards have plated microvias, plated buried vias, and maybe PTHs for surface-to-surface connections.

Type IV

These are yellow HDI structures that utilize microvia layers over an existing predrilled passive substrate.

Type V

Here, you will use layer pairs in coreless constructions.

Type VI

These yellow HDIs are those in which the electrical connectivity and mechanical structure are created at the same time.

What is a Capped Via Hole and When should you Use it in Yellow PCB Design?

When you add plating over a via hole to fully metalize the surface, it is known as a capped via hole.

Here, you will use a minimum cap thickness of 5 micrometers for class 2, and 12 micrometers for class 3 demands.

This is dependent on the via filling substance being epoxy resin rather than solder mask.

The epoxy will reduce the danger of air bubbles or fill expansion during the soldering processes.

IPC-4761 classifies this as type VII – filled and capped via holes.

It is common in designs for via in pad or BGA applications requiring high-density features.

How Does Back-Drilling Ensure Better Signal Stability in High-Frequency Yellow PCB?

We need to prevent signal loss in high frequency applications.

When you link one layer to another and signals flow from one layer to the next. It will therefore pass through via holes that join the layers.

If signal travels from layer one to layer two on a 20-layer board, you will regard a portion of the via structure as”excess”.

Therefore, for this usage, it is advisable to remove the surplus copper from this hole.

This is because it works as an antenna and affects the signal.

To improve signal stability, you will utilize back-drilling (controlled depth in the z-axis) to drill out the ‘extra’ copper in the hole.

A shorter stub [excess copper] will yield a favorable result. The size of the back drill should be 0.2mm greater than equivalent via size.

Why should the Drill Pad Size in the Interior Layers be Larger than in Exterior Layers?

This is because the manufacturing process is not perfect.

There is always a tolerance on the datasheet to compensate for variations like machining, wear, plating, temperature, etc.

As you drill the holes, the drill bit may wear, wiggle, or vibrate.

The tolerance will account for thermal expansion and shrinkage when you are processing the yellow PCB.

What is the Effect of Conductive Anodic Filament (CAF) in Yellow PCB?

CAF is a metallic filament that will form due to electrochemical migration. This effect will cause failures in yellow PCB.

It will occur between adjacent vias inside the yellow PCB as copper moves from anode to cathode. This may cause dielectric breakdowns, leakage in current, and electrical shorts between the yellow PCB and conductors.

 Yellow Printed Circuit Board

Yellow Printed Circuit Board

Which are the Common Yellow PCB Silkscreen Printing Techniques?

The methods that you can use to apply silkscreen on yellow PCB are:

Manual Screen Printing

This process is possible when registration tolerances are 0.005″ or when the width of the lines is more than 0.007″. To use this process, you will need stencils that have texts and traces.

Nylon will make the traces and you will apply direct ink to the layers or laminates through the stencil. Then, you will cure it by baking it in an oven.

This is one of the simplest methods for making a silkscreen layer, and it also allows huge font sizes. It might take years to master this skill.

Liquid Photo Imaging [LPI]

This method is suitable when you are screen printing lines that are more than 4 mils. Besides, this process is similar to solder mask application.

However, in this procedure, you will cover the laminate with epoxy before you expose it to UV light. After that, you will proceed to cure and develop the board.

This approach is more accurate than hand screen printing. LPI employs white ink, which is more expensive than the other two methods of silk screen printing.

This form of printing takes a long time to set up.

Direct Legend Printing [DLP]

Among the three procedures, this is the most costly. Here, you will use Inkjet projectors and acrylic inks, and using the CAD program, the ink is put to the PCB.

After that, you will subject the ink to UV light. However, an acrylic link is not suitable when the PCB has a silver finish.

Can you Fabricate Multiple Yellow PCBs Within One Panel?

Yes, you can arrange several yellow PCBs on one panel but this depends on their sizes.

What is the Maximum Continuous Operating Temperature of Yellow PCB?

The maximum temperature is approximately 110°C or 230°F.

Why do you Require Controlled Impedance in High-Speed Yellow PCB Applications?

The characteristic impedance of a transmission line that PCB traces produce and their accompanying reference planes is known as controlled impedance.

These high-speed applications include:

  • RF communication
  • Telephony
  • Computers employing signal frequencies above 100MHz
  • High-quality analog videos like DDR, HDMI, Gigabit Ethernet, etc.

The signal traces on a PCB behave like transmission lines at high frequencies, with impedance at each point along the signal trace trajectory. If this impedance varies from one location to the next, a signal reflection will occur.

Also, you will determine the magnitude by the difference between the two impedance. The greater the contrast, the bigger the reflection.

As a consequence, the original signal experiences distortion. The signal you intend to convey from the transmitter side changes once it reaches the receiver side.

Here, the distortion may cause it not to accomplish its purpose. Therefore, you should regulate the impedance to reduce signal distortions.

Which are Some of the Guidelines for Yellow PCBA Design for Reliability?

These include:

  • Improve the Efficiency of your Component Selecting Process.

Implementing methods to maintain the security of your supply chain is fundamental.

Failure to optimize your component selection procedure, on the other hand, might degrade the dependability of semiconductor boards.

  • Check that the Components are Not Sensitive to Moisture.

Moisture-sensitive components are more prone to early failure. This might be due to improper handling, storage, or other difficulties.

The best strategy is to avoid utilizing moisture-sensitive semiconductors for your board.

  • Use Effective Thermal Dissipation Strategies.

Thermal dissipation and dispersion are essential considerations for semiconductor boards. However, because many of these components produce a lot of heat, it’s necessary to use proper thermal dissipation strategies.

  • Use Board Protection.

Board failure and deterioration happen due to contamination. As a result, you should use PCBA strategies and activities to prevent pollutants, with a focus on moisture protection.

  • Use a Suitable Risk Management Plan

To reduce the likelihood of board failure, you should develop and execute a thorough risk management strategy with adequate controls.

Is the Yellow PCB Layout Adjusted or Modified before Fabrication Process?

Yes, this is important to adhere to design guidelines. Also, you will not move pads and connections, but alter them during the manufacturing process.

This involves:

  • Increasing or reducing the solder mask to meet design requirements.
  • Clear the copper to routing edges.
  • Cropping the silk designs that overhang any pads.
  • Putting holders or bridges for the final process.
  • Circuit route (trace) enlargement as a cauterization allowance.
  • Relocating circuit paths to preserve appropriate clearances.
  • If feasible, you are to enlarge the diameter of the drill holes as a manufacturing allowance.

What is Examined During the E-test of Yellow PCB?

The E-test is used to check for short circuits or open connections on the yellow PCB.

Two of the common E-test methods are:

  • Flying Probe
  • Test Adapter

Yellow PCB Assembly

 Yellow PCB Assembly

Are RoHS Complaint Yellow PCB also halogen-free?

No, the RoHS regulation forbids the use of two bromide flame retardants.

PCB, solder masks, connectors are some electronic materials that have halogenated compounds.

These are PBB [polybromided biphenyls] and PBDE [polybromided diphenyl ether] which are some of the most dangerous toxins.

TBBP-A, a bromide flame retardant, is often used in PCBs (Tetrabromobisphenol A).

Restriction of hazardous substances is in place as there is an increasing demand for global environmental protection.

By burning these hazardous materials, you will produce harmful compounds which are harmful to human health and the environment.

What Information is Required for Price Calculation of Yellow PCB?

This includes:

  • The dimension of the PCB
  • Number of pieces you are purchasing
  • The number of layers of the PCB
  • Surface finish type and thickness of copper
  • Shape and thickness of the PCB
  • The minimum track width and size of the drill
  • Number of holes that you want to drill and their dimensions
  • Cutouts and slots
  • Electrical testing
  • Delivery time

Does the Yellow PCB Price Include all the Handling and Shipping Costs from China?

Yes, manufacturers will include the handling and shipping costs once you finalize the yellow PCB you need.

The handling and shipping cost may depend on the time of delivery, size, and weight of the yellow PCB.

Depending on your specific needs and requirements, Venture Electronics will solve all your yellow PCB problems.

Even if you need other color PCB, Venture Electronics offers perfect solution – contact us now.

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