Serving You a World-Class 4-Layer PCB

PCBTok is a versatile PCB maker. We’re capable of making all types of PCBs for you.

  • Competent in making single- double- and multilayer PCBs like the 4-Layer PCB
  • We even offer complete cables assembly and PCBA solutions
  • Your peace of mind guaranteed with extensive PCB test deployed
  • 100% AOI inspection and other advanced manufacturing methods

Ask our sales representatives about 4-Layer PCB for further details.

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Best-Value 4 Layer PCB

Announcing our product offering: the 4-Layer PCB.

Any 4 Layer PCB requirements you may have can be met by us.

Over 12 years have passed since our seasoned support team has joined us. As w result, it is without a doubt, our team are experts in multilayer circuit boards of this kind.

We want to offer a free sample to make sure you are satisfied with your orders for 4 Layer PCB.

You are entitled to this if you have a bulk purchase order. Please inquire!

We feature all the details you ever need in this piece so you don’t need to worry about complete info about 4-Layer PCB products!

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4-Layer PCB By Feature

FR4 4-Layer PCB

Using FR4 maximizes cost-effectiveness of the PCB. FR4 4-Layer PCB is widely accepted in digital devices, as it gives adequate protection.

High Tg 4-Layer PCB

Normal FR4 is sufficient for most electronics, although customers in the semiconductor industry need something better.

HDI 4-Layer PCB

You should design your device using HDI 4-Layer PCB if it relies on high-speed signals. It is efficient at reducing impedance.

Ceramic 4-Layer PCB

The fact that Ceramic 4-Layer PCB is more affordable than metal core PCB is a lesser-known. Utilizing this material results in cost reductions for you.

Halogen-free 4-Layer PCB

Successfully attain low levels of chlorine and bromine by using a 4-Layer Halogen-free PCB. PCBTok does this by exclusively using laminates w/o halogen.

Rogers 4-Layer PCB

With Rogers 4-Layer PCB option, the copper thickness is adjustable. Rogers offers a variety of materials (3006, 3006, etc.) to ensure that you are happy.

4-Layer PCB By Board Type (6)

  • Rigid 4-Layer PCB

    It is possible to employ Rigid 4-Layer PCB after new product development, and when item is moving toward mass production. Rigid PCB is well-liked in consumer electronics/ OEM.

  • Flexible 4-Layer PCB

    All of the materials handled by Flexible 4-Layer PCB include Doosan and Rogers. Because they can produce designs that are robust, so they’re advantageous.

  • Rigid-Flex 4-Layer PCB

    The Rigid-Flex 4-Layer PCB’s distinctive feature is a the marriage of perfect FR4 and polyimide material. The flexible parts are useful in small places.

  • Gold Finger 4-Layer PCB

    Use of a Gold Finger design is anticipated to result in 1,000 uses and re-uses for the end-device. For this reason, you are encouraged to get Gold Finger 4-Layer PCB.

  • Panelized 4-Layer PCB

    Working with the Panelized 4-Layer PCB design is beneficial since we may combine items of various sizes and shapes into one standard board.

  • Teflon 4-Layer PCB

    A number of high-frequency/high-speed applications employ our Teflon 4-Layer PCB. Mobile and self-driving automotive electronics systems are among the usages.

4-Layer PCB By Thickness & Surface Mount (5)

  • 1 oz 4-Layer PCB

    When choosing to use 1 oz 4-Layer PCB, a typical PCB specification is taken into account. If you wish, we can create some using Shengyi/NanYa.

  • 2 oz 4-Layer PCB

    If you require a robust PCB, then the 2 oz 4-Layer PCB is for you. There is no problem, we can produce it feasibly. You can designate this particular item for high current offerings.

  • customized Thickness 4-Layer PCB

    Use the Customized Thickness 4-Layer PCB for those requiring thicker copper. Alternatively, you can have less than 1 oz.

  • SMT 4-Layer PCB

    We gladly accommodate High or Low volume SMT 4-Layer PCB with our SMT assembly services. Reflow soldering is the main technique applied here.

  • PTH 4-Layer PCB

    We smoothly arrange the PTH 4-Layer PCB you have. This is via our Through Hole Assembly process, which makes good use of TH resistors, capacitors, etc.

4 Layer PCB Benefits

24h Online Support
24h Online Support

PCBTok can offer 24h online support for you. When you have any PCB-related questions, please feel free to get in touch.

Production Efficiency
Production Efficiency

PCBTok can build your PCB prototypes quickly. We also provide 24 hour production for quick-turn PCBs at our facility.

Fast Delivery
Fast Delivery

We often ship goods by international forwarders such as UPS, DHL, and FedEx. If they are urgent, we use priority express service.

Quality Assurance
Quality Assurance

PCBTok has passed ISO9001 and 14001, and also has USA and Canada UL certifications. We strictly follow IPC class 2 or class 3 standards for our products.

Offering Effective 4 Layer PCB Products

We deal with a lot of companies who get us as their OEM producer for 4 Layer PCB.

With us, your product is protected from device failure situations by our strong Quality Control guarantee.

We want to prevent this bad situation because it does not speak highly of us as your PCB supplier.

Pick the 4-Layer PCB from PCBTok and other related products right away.

Don’t pass up this fantastic opportunity!

We are your competent 4 Layer PCB fabricator.

Offering Effective 4 Layer PCB Products
Dependably Amazing 4 Layer PCB Process

Dependably Amazing 4 Layer PCB Process

Consumers trust the 4 Layer PCB manufactured by us.

As a veteran in the industry, we are well-versed in what it takes to produce top-notch PCBs

We adhere to the standards when performing Material Handling, IQC, Reflow, In-Circuit Test (ICT)—

As well as the other detailed PCB manufacturing processes.

If in doubt, contact us, and we will explain it all. We’re always here to help with your 4 Layer PCB item.

Conquer With Our 4 Layer PCB Support

You’re right to check us up if you’re looking for a reputable Chinese manufacturer of PCBs.

At PCBTok, we provide high-quality 4-Layer PCB without the excessive cost.

As it is our mission to lead the PCB industry, we never compromise on PCB quality.

If you work with us as a partner, we’ll help your brand expand.

Conquer your difficulties, don’t use unreliable PCB suppliers.

We won’t let you down with our excellent products.

Conquer With Our 4 Layer PCB Support

The Reliable Option: PCBTok’s 4 Layer PCB

The Reliable Option PCBTok’s 4 Layer PCB
The Reliable Option PCBTok 4 Layer PCB

We are the PCB makers you can rely on to deliver your 4 Layer PCB without delay!

  • Our company shows advantages, which include:
  • Quick-turn processing of your 4-Layer PCB order
  • Highly updated facilities
  • A well-trained workforce, particularly in communication
  • Transparent work-flow process with WIP if you desire

4 Layer PCB Fabrication

No One Does 4-Layer PCBs Better

We are the best in 4-Layer PCBs because we have a lot of PCB industry experience.

Our goal is to support the expansion of your business.

We consider the long term goal since, if we are successful in modest 4-Layer order fulfillment, it will signify that we can be your long-term partner for you.

We can be your dedicated OEM or EMS companion.

4 Layer PCB Material Possibilities

Simple PCBs like single-sided and double-sided have long been the only options available to hobbyist PCB designers.

But with us, PCBTok, you are free to explore with the 4-Layer PCB option.

We welcome any and all PCB designs. The more innovative, the better.

Because we don’t have a minimum order quantity for this kind of PCB,

Kindly inquire now! You will be surprised by the possibilities.

OEM & ODM 4 Layer PCB Applications

4-Layer PCB for Gaming Applications

Gaming applications require heavy-duty use of 4-Layer PCB. We accordingly ensure that they are exceedingly durable.

4-Layer PCB for Common Office Devices

We take great care when designing the 4-Layer PCB for mid-range devices. We know how utilitarian common office devices are: their lifespan depends on circuit boards, largely.

4-Layer PCB for Consumer Applications

The material used for 4-Layer PCB for Consumer Applications is FR4, as it is the most widely recognized standard.

4-Layer PCB for Computer Applications

The majority of Multilayer PCB Stack-up orders are HDI designs, including those for computer applications.

4-Layer PCB for Simple Medical Tools

Our OEM product line includes a separate section dedicated to the adaptable PCBs like the 4-Layer PCB. It’s superior for simple medical tools.

4-Layer PCB banner 2
Remarkable 4 Layer PCB Items

Our 4-Layer PCB product is categorized as the entry-level Multilayer PCB.

Our quality will impress you.

4 Layer PCB Production Details As Following Up

NO Item Technical Specification
Standard Advanced
1 Layer Count 1-20 layers 22-40 layer
2 Base Material KB、Shengyi、ShengyiSF305、FR408、FR408HR、IS410、FR406、GETEK、370HR、IT180A、Rogers4350、Rogers400、PTFE Laminates(Rogers series、Taconic series、Arlon series、Nelco series)、Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4)
3 PCB Type Rigid PCB/FPC/Flex-Rigid Backplane、HDI、High multi-layer blind&buried PCB、Embedded Capacitance、Embedded resistance board 、Heavy copper power PCB、Backdrill.
4 Lamination type Blind&buried via type Mechanical blind&burried vias with less than 3 times laminating Mechanical blind&burried vias with less than 2 times laminating
HDI PCB 1+n+1,1+1+n+1+1,2+n+2,3+n+3(n buried vias≤0.3mm),Laser blind via can be filling plating 1+n+1,1+1+n+1+1,2+n+2,3+n+3(n buried vias≤0.3mm),Laser blind via can be filling plating
5 Finished Board Thickness 0.2-3.2mm 3.4-7mm
6 Minimum Core Thickness 0.15mm(6mil) 0.1mm(4mil)
7 Copper Thickness Min. 1/2 OZ, Max. 4 OZ Min. 1/3 OZ, Max. 10 OZ
8 PTH Wall 20um(0.8mil) 25um(1mil)
9 Maximum Board Size 500*600mm(19”*23”) 1100*500mm(43”*19”)
10 Hole Min laser drilling size 4mil 4mil
Max laser drilling size 6mil 6mil
Max aspect ratio for Hole plate 10:1(hole diameter>8mil) 20:1
Max aspect ratio for laser via filling plating 0.9:1(Depth included copper thickness) 1:1(Depth included copper thickness)
Max aspect ratio for mechanical depth-
control drilling board(Blind hole drilling depth/blind hole size)
0.8:1(drilling tool size≥10mil) 1.3:1(drilling tool size≤8mil),1.15:1(drilling tool size≥10mil)
Min. depth of Mechanical depth-control(back drill) 8mil 8mil
Min gap between hole wall and
conductor (None blind and buried via PCB)
7mil(≤8L),9mil(10-14L),10mil(>14L) 5.5mil(≤8L),6.5mil(10-14L),7mil(>14L)
Min gap between hole wall conductor (Blind and buried via PCB) 8mil(1 times laminating),10mil(2 times laminating), 12mil(3 times laminating) 7mil(1 time laminating), 8mil(2 times laminating), 9mil(3 times laminating)
Min gab between hole wall conductor(Laser blind hole buried via PCB) 7mil(1+N+1);8mil(1+1+N+1+1 or 2+N+2) 7mil(1+N+1);8mil(1+1+N+1+1 or 2+N+2)
Min space between laser holes and conductor 6mil 5mil
Min space between hole walls in different net 10mil 10mil
Min space between hole walls in the same net 6mil(thru-hole& laser hole PCB),10mil(Mechanical blind&buried PCB) 6mil(thru-hole& laser hole PCB),10mil(Mechanical blind&buried PCB)
Min space bwteen NPTH hole walls 8mil 8mil
Hole location tolerance ±2mil ±2mil
NPTH tolerance ±2mil ±2mil
Pressfit holes tolerance ±2mil ±2mil
Countersink depth tolerance ±6mil ±6mil
Countersink hole size tolerance ±6mil ±6mil
11 Pad(ring) Min Pad size for laser drillings 10mil(for 4mil laser via),11mil(for 5mil laser via) 10mil(for 4mil laser via),11mil(for 5mil laser via)
Min Pad size for mechanical drillings 16mil(8mil drillings) 16mil(8mil drillings)
Min BGA pad size HASL:10mil, LF HASL:12mil, other surface technics are 10mil(7mil is ok for flash gold) HASL:10mil, LF HASL:12mil, other surface technics are 7mi
Pad size tolerance(BGA) ±1.5mil(pad size≤10mil);±15%(pad size>10mil) ±1.2mil(pad size≤12mil);±10%(pad size≥12mil)
12 Width/Space Internal Layer 1/2OZ:3/3mil 1/2OZ:3/3mil
1OZ: 3/4mil 1OZ: 3/4mil
2OZ: 4/5.5mil 2OZ: 4/5mil
3OZ: 5/8mil 3OZ: 5/8mil
4OZ: 6/11mil 4OZ: 6/11mil
5OZ: 7/14mil 5OZ: 7/13.5mil
6OZ: 8/16mil 6OZ: 8/15mil
7OZ: 9/19mil 7OZ: 9/18mil
8OZ: 10/22mil 8OZ: 10/21mil
9OZ: 11/25mil 9OZ: 11/24mil
10OZ: 12/28mil 10OZ: 12/27mil
External Layer 1/3OZ:3.5/4mil 1/3OZ:3/3mil
1/2OZ:3.9/4.5mil 1/2OZ:3.5/3.5mil
1OZ: 4.8/5mil 1OZ: 4.5/5mil
1.43OZ(positive):4.5/7 1.43OZ(positive):4.5/6
1.43OZ(negative ):5/8 1.43OZ(negative ):5/7
2OZ: 6/8mil 2OZ: 6/7mil
3OZ: 6/12mil 3OZ: 6/10mil
4OZ: 7.5/15mil 4OZ: 7.5/13mil
5OZ: 9/18mil 5OZ: 9/16mil
6OZ: 10/21mil 6OZ: 10/19mil
7OZ: 11/25mil 7OZ: 11/22mil
8OZ: 12/29mil 8OZ: 12/26mil
9OZ: 13/33mil 9OZ: 13/30mil
10OZ: 14/38mil 10OZ: 14/35mil
13 Dimension Tolerance Hole Position 0.08 ( 3 mils)
Conductor Width(W) 20% Deviation of Master
A/W
1mil Deviation of Master
A/W
Outline Dimension 0.15 mm ( 6 mils) 0.10 mm ( 4 mils)
Conductors & Outline
( C – O )
0.15 mm ( 6 mils) 0.13 mm ( 5 mils)
Warp and Twist 0.75% 0.50%
14 Solder Mask Max drilling tool size for via filled with Soldermask (single side) 35.4mil 35.4mil
Soldermask color Green, Black, Blue, Red, White, Yellow,Purple matte/glossy
Silkscreen color White, Black,Blue,Yellow
Max hole size for via filled with Blue glue aluminium 197mil 197mil
Finish hole size for via filled with resin  4-25.4mil  4-25.4mil
Max aspect ratio for via filled with resin board 8:1 12:1
Min width of soldermask bridge Base copper≤0.5 oz、Immersion Tin: 7.5mil(Black), 5.5mil(Other color) , 8mil( on copper area)
Base copper≤0.5 oz、Finish treatment not Immersion Tin : 5.5 mil(Black,extremity 5mil), 4mil(Other
color,extremity 3.5mil) , 8mil( on copper area
Base coppe 1 oz: 4mil(Green), 5mil(Other color) , 5.5mil(Black,extremity 5mil),8mil( on copper area)
Base copper 1.43 oz: 4mil(Green), 5.5mil(Other color) , 6mil(Black), 8mil( on copper area)
Base copper 2 oz-4 oz: 6mil, 8mil( on copper area)
15 Surface Treatment Lead free Flash gold(electroplated gold)、ENIG、Hard gold、Flash gold、HASL Lead free、OSP、ENEPIG、Soft gold、Immersion silver、Immersion Tin、ENIG+OSP,ENIG+Gold finger,Flash gold(electroplated gold)+Gold finger,Immersion silver+Gold finger,Immersion Tin+Gold finge
Leaded Leaded HASL
Aspect ratio 10:1(HASL Lead free、HASL Lead、ENIG、Immersion Tin、Immersion silver、ENEPIG);8:1(OSP)
Max finished size HASL Lead 22″*39″;HASL Lead free 22″*24″;Flash gold 24″*24″;Hard gold 24″*28″;ENIG 21″*27″;Flash gold(electroplated gold) 21″*48″;Immersion Tin 16″*21″;Immersion silver 16″*18″;OSP 24″*40″;
Min finished size HASL Lead 5″*6″;HASL Lead free 10″*10″;Flash gold 12″*16″;Hard gold 3″*3″;Flash gold(electroplated gold) 8″*10″;Immersion Tin 2″*4″;Immersion silver 2″*4″;OSP 2″*2″;
PCB thickness HASL Lead 0.6-4.0mm;HASL Lead free 0.6-4.0mm;Flash gold 1.0-3.2mm;Hard gold 0.1-5.0mm;ENIG 0.2-7.0mm;Flash gold(electroplated gold) 0.15-5.0mm;Immersion Tin 0.4-5.0mm;Immersion silver 0.4-5.0mm;OSP 0.2-6.0mm
Max high to gold finger 1.5inch
Min space between gold fingers 6mil
Min block space to gold fingers 7.5mil
16 V-Cutting Panel Size 500mm X 622 mm  ( max. ) 500mm X 800 mm ( max. )
Board Thickness 0.50 mm (20mil) min. 0.30 mm (12mil) min.
Remain Thickness 1/3 board thickness 0.40 +/-0.10mm( 16+/-4 mil )
Tolerance ±0.13 mm(5mil) ±0.1 mm(4mil)
Groove Width 0.50 mm (20mil) max. 0.38 mm (15mil) max.
Groove to Groove 20 mm (787mil) min. 10 mm (394mil) min.
Groove to Trace 0.45 mm(18mil) min. 0.38 mm(15mil) min.
17 Slot Slot size tol.L≥2W PTH Slot: L:+/-0.13(5mil) W:+/-0.08(3mil) PTH Slot: L:+/-0.10(4mil) W:+/-0.05(2mil)
NPTH slot(mm) L+/-0.10 (4mil) W:+/-0.05(2mil) NPTH slot(mm) L:+/-0.08 (3mil) W:+/-0.05(2mil)
18 Min Spacing from hole edge to hole edge 0.30-1.60 (Hole Diameter) 0.15mm(6mil) 0.10mm(4mil)
1.61-6.50 (Hole Diameter) 0.15mm(6mil) 0.13mm(5mil)
19 Min spacing between hole edge to circuitry pattern PTH hole: 0.20mm(8mil) PTH hole: 0.13mm(5mil)
NPTH hole: 0.18mm(7mil) NPTH hole: 0.10mm(4mil)
20 Image transfer Registration tol Circuit pattern vs.index hole 0.10(4mil) 0.08(3mil)
Circuit pattern vs.2nd drill hole 0.15(6mil) 0.10(4mil)
21 Registration tolerance of front/back image 0.075mm(3mil) 0.05mm(2mil)
22 Multilayers Layer-layer misregistration 4layers: 0.15mm(6mil)max. 4layers: 0.10mm(4mil) max.
6layers: 0.20mm(8mil)max. 6layers: 0.13mm(5mil) max.
8layers: 0.25mm(10mil)max. 8layers: 0.15mm(6mil) max.
Min. Spacing from Hole Edge to Innerlayer Pattern 0.225mm(9mil) 0.15mm(6mil)
Min.Spacing from Outline to Innerlayer Pattern 0.38mm(15mil) 0.225mm(9mil)
Min. board thickness 4layers:0.30mm(12mil) 4layers:0.20mm(8mil)
6layers:0.60mm(24mil) 6layers:0.50mm(20mil)
8layers:1.0mm(40mil) 8layers:0.75mm(30mil)
Board thickness tolerance 4layers:+/-0.13mm(5mil) 4layers:+/-0.10mm(4mil)
6layers:+/-0.15mm(6mil) 6layers:+/-0.13mm(5mil)
8-12 layers:+/-0.20mm (8mil) 8-12 layers:+/-0.15mm (6mil)
23 Insulation Resistance 10KΩ~20MΩ(typical:5MΩ)
24 Conductivity <50Ω(typical:25Ω)
25 Test voltage 250V
26 Impedance control ±5ohm(<50ohm), ±10%(≥50ohm)

PCBTok offers flexible shipping methods for our customers, you may choose from one of the methods below.

1. DHL

DHL offers international express services in over 220 countries.
DHL partners with PCBTok and offers very competitive rates to customers of PCBTok.
It normally takes 3-7 business days for the package to be delivered around the world.

DHL

2. UPS

UPS gets the facts and figures about the world’s largest package delivery company and one of the leading global providers of specialized transportation and logistics services.
It normally takes 3-7 business days to deliver a package to most of the addresses in the world.

UPS

3. TNT

TNT has 56,000 employees in 61 countries.
It takes 4-9 business days to deliver the packages to the hands
of our customers.

TNT

4. FedEx

FedEx offers delivery solutions for customers around the world.
It takes 4-7 business days to deliver the packages to the hands
of our customers.

FedEx

5. Air, Sea/Air, and Sea

If your order is of large volume with PCBTok, you can also choose
to ship via air, sea/air combined, and sea when necessary.
Please contact your sales representative for shipping solutions.

Note: if you need others, please contact your sales representative for shipping solutions.

You can use the following payment methods:

Telegraphic Transfer(TT): A telegraphic transfer (TT) is an electronic method of transferring funds utilized primarily for overseas wire transactions. It’s very convenient to transfer.

Bank/Wire transfer: To pay by wire transfer using your bank account, you need to visit your nearest bank branch with the wire transfer information. Your payment will be completed 3-5 business days after you have finished the money transfer.

Paypal: Pay easily, fast and secure with PayPal. many other credit and debit cards via PayPal.

Credit Card: You can pay with a credit card: Visa, Visa Electron, MasterCard, Maestro.

  • “Being optimistic about new companies, especially ones from Asia, is challenging. However, my experience with PCBTok has been different. They genuinely appear to care about making a good job and completing your PCB assembling by the deadline they’ve given you. They are usually polite and concerned in making sure they understand what you want done and when your expectations will be met, whether I stop unexpectedly or on schedule.”

    Norbert Beier, PCB Assembler from Hannover, Germany.
  • “More than a year ago, I decided to switch to PCBTok since I thought that another company from my nation was becoming too pricey and slow. Additionally, that local company is not really doing a good job—I’m happy I changed suppliers. I discover along the way that PCBTok provides superior services at fair prices. I now buy PCBTok products exclusively. You should definitely try them out because of their incredible teamwork and effort.”

    Jorge Hanzlík, Local Buyer from Czech Republic
  • “It’s wise to leave it to the PCB Experts, like PCBTok. Their PCB prototyping is carried out on-site, and the service is professional. This is significant to me—everything has arrived on schedule. I am a PCB professional adhere to deadlines strictly! Also, they do an excellent job and won’t try to upsell you on anything. Instead, they give you a deadline by which you could require more work. All is well. Good.”

    Jack Patti, PCB Layout Engineer Product Development from South Carolina.

4 Layer PCB – The Ultimate FAQ Guide

There are a few things you should note about the 4-layer PCB. These layers are responsible for signal routing and power distribution. The components are located on the top and bottom layers, while the power supply layer and signal routing are located on the two inner layers. You should have a good understanding of the various components to make the layout easier. You can also design your own 4-layer PCB using Altium Designer software. here are some tips to help you design your own PCB.

First, you must choose the right material for each layer. Consider prepreg and core thickness, as well as signal layers. Different types of boards have different standard thicknesses. Finally, choose a material with the right mechanical, electrical, and thermal properties. There are several factors to consider when selecting materials for a 4-layer PCB.

Standard 4-Layer PCB

Standard 4-Layer PCB

When selecting materials for your design, keep in mind that signal speed varies from layer to layer. For example, if your large device contains BGA components, you will need to route the outer rows and connect them via vias. If you have too many layers in your 4-layer board, you will not have room to route the signal lines. If you are not going to use this method, you can use two layers.

What Is a 4 layer PCB?

Preparation of materials is the first step in PCB manufacturing. Copper layers and substrates are examples of these materials. Both of these materials act as insulating materials to prevent current and heat from passing through the stack. After the materials are prepared, the plotter printer creates a 4-layer stack of films. This film guides the manufacturing process. The finished product is a 4-layer PCB that can perform a variety of tasks.

4-layer PCBs can be more difficult to manufacture than standard 4-layer boards. 4-layer PCBs are often thinner than traditional four-layer boards, which makes them more difficult and increases manufacturing time. If you are pressed for time and need to complete the PCB quickly, a traditional 4-layer design may be a better choice.

Rogers+FR4 4 Layer PCB

Rogers+FR4 4 Layer PCB
A 4-layer PCB can be designed using a mixed-signal or single-phase design, which does not have a dedicated internal layer for routing. To ensure optimal performance, routing must be planned in conjunction with component placement and escape routing. First, analyze the components you need to place to determine how many layers your project requires. Then, start planning your routing. You will have a better idea of how many layers you need to build.

4-layer printed circuit boards are generally more expensive than double-sided boards. Production and development costs are typically higher than for double-sided designs, and development time is much longer. The more layers you use, the more expensive the product will be, so think about how much you want to spend on a 4-layer board. It is critical to keep these factors in mind when deciding on the type of PCB you want to use.

How Thick Is a 4 layer PCB?

You may be wondering, “How thick is a 4-layer PCB?” Whether you’re designing a new board or just wondering how thick a 4-layer board should be. Here are some responses. First, keep in mind that the thickness of each layer will vary. Consider the stack-up thickness, which is usually determined by the thickness of the copper foil. Then, choose the material that best combines electrical, thermal, and mechanical properties.

The thickness of a PCB varies by application, weight, and component. It has been scaled down in recent years, but it is still important to consider the design requirements of the project before selecting a PCB manufacturer. For example, a 4-layer printed circuit board may be thicker than a 2-layer board. Some boards may contain high-speed/high-frequency components that require the use of high-frequency materials. If you need a thicker board, consult your PCB manufacturer to ensure your design meets production standards.

Another factor to consider is the prepreg layer. The prepreg layer is a resin-saturated fiber mesh. The core is then laminated to the uncured Fr4 layers. While the thickness of these layers may vary, it is critical to ensure that the core thickness is accurate to achieve high-quality performance. When specifying PCB core thickness, be sure to include all relevant measurements, such as the height and width of the etched board.

4-Layer PCB Stack-up

4-Layer PCB Stack-up

PCB thickness range from 0.008 inches to 0.240 inches, depending on the application and area of use. The thickness of the PCB is an important factor in the functionality of the PCB, so it is critical to select the correct thickness for your application. Consult the experts at PCBTok to determine the thickness of your PCB. Your PCB manufacturer will likely have a thickness calculator for you.

How to Design a 4 Layer PCB?

If you want to know “How to design a 4-layer PCB?” this is the place to go. You’re not alone. The number of 4-layer boards is rapidly increasing, so now is the perfect time to experiment with one of these designs. Listed below are some of the key points to consider when designing your first 4-layer board. These are some tips to ensure that your finished product meets industry standards.

The first step is to gather your materials. For your 4-layer PCB, you will need a substrate and copper layers. These materials act as insulators and prevent current and heat from passing through the stack-up. Then use a plotter printer to create the film for the 4-layer PCB stack. This film will serve as a guide during the production process. If your design is approved, you can proceed to the next step: creating a 4-layer PCB!

Gold Finger 4-Layer PCB

Gold Finger 4-Layer PCB

Keep in mind that new wiring twists need to be considered when designing a 4-layer board. For example, the signals on the bottom layer are connected to the power supply layer. When the signal returns current flows through the power supply layer, a bypass capacitor is required. In addition, high-speed signals may require the use of additional bypass capacitors. The bypass capacitor helps to shorten and keep the signal loop area as small as possible.

While most manufacturers use 4-layer stackups, these layers can be stacked in a variety of ways. Some manufacturers refer to them as core plated or core drilled. Both of these methods are valid and effective for 4-layer boards. A good tip is to create your PCB using a CAD tool, such as Altium Designer, which will help you achieve the desired results. The most common PCB design in electronic devices is the 4-layer PCB.

What Is 4 Layer PCB Stack-Up?

If you are looking for a new way to manufacture electronics, you may be interested in learning about the 4-layer PCB stack-up. This type of board consists of several layers, most often copper. It is then layered and semi-cured with an epoxy-impregnated prepreg material. Afterward, the copper foil is laminated with the prepreg to form a copper-clad laminate. The core is another name for this type of copper-clad laminate.

The grounding layer is located below the surface of each component on the 4-layer board. The signal layer is placed adjacent to the ground layer to ensure that they are tightly coupled. When designing a four-layer board, keep in mind that the ground plane should be as thin as possible to reduce the impedance of the power supply. In addition, 4-layer boards may generate noise.

4-layer stackups are unique and have both advantages and disadvantages. First, they differ in terms of overall thickness and EMI. Then there are the other advantages and disadvantages of each stack. The two most common types of four-layer boards are described below. In the end, the type of board stack will depend on the application and the end product.

4-layer stack-ups are suitable for applications that require a large number of through-holes across a large number of pins in the stack. High-pin-count BGAs are particularly difficult to lay out. The large number of vias required to connect these BGAs to the surface and internal power layers is not sufficient to reduce interlayer capacitance. In addition, it cuts off the GND plane where capacitive coupling cannot be provided.

What Are the Advantages of 4 Layer PCB?

The 4-layer PCB is the most common in the field of printed circuit boards. However, it is not without its drawbacks. The added cost and complexity are one of them. Another problem is the difficulty of debugging the circuit; in order to locate defective components, you must carefully follow the CAD drawings. Finally, four-layer printed circuit boards are more difficult to reverse engineer. Because X-rays can see through the inner layers, reverse engineering is more difficult.

Lamination is the process of producing a printed circuit board. A 4-layer printed circuit board (PCB) has two internal layers: a thick core layer in the center and two prepreg layers. Generally, the inner layer is used for power and grounding networks, while the top layer is used for signals and mounting components. These layers are then soldered together and have exposed pads. Through holes are typically used for the connection layers.

A common PCB design strategy is to stack 4-layer PCBs. although 4-layer boards are more complex than single-layer boards, they are often preferred due to their versatility and smaller capacity. High assembly density, smaller size, and excellent connection density are just a few of the benefits of 4-layer PCBs. 4-layer designs can also reduce errors and improve product durability.

When selecting materials for 4-layer PCBs, consider the thickness of the signal, core, and prepreg layers. Each layer has a different thickness. Fortunately, there are standard thicknesses for different types of boards. The material used for each layer is determined by its electrical, thermal, and mechanical properties. All of these variables should be considered before finalizing the design. If your requirements are stringent, a 4-layer PCB may be the best choice.

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