Excellently Built FR408HR by PCBTok

PCBTok’s FR408HR PCB Material can support lead-free assembly; thus, you can guarantee that it is environmentally friendly and RoHS compliant.

Additionally, this material can withstand high soldering temperatures, making it perfect for operations that frequently operate in this setting.

It has Laser Fluorescing, Optical Positioning Systems, Photo-imageable Soldermask Imaging, and UV Blocking with Automated Optical Inspection (AOI) systems.

Isola’s innovative high-performance, multipurpose resin system, and electrical grade glass fabric (E-Glass) are used to precisely manufacture this material.

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PCBTok is Dedicated to Offering Exceptional FR408HR

All of PCBTok’s products are crafted using high-class raw materials to guarantee that they will perform without any flaws during their designated applications.

Moreover, our circuit boards are IPC Class 2 or 3 certified; thus, you can be sure of their quality and performance. We don’t provide FR408HR, that are made of mediocrity.

In terms of the production facility, we have all the required facilities to produce your PCB products ideally. Also, we deploy only experienced staff during the manufacturing phase.

In PCBTok, you can guarantee complete satisfaction through our product’s performance.

We do not only produce quality products but at affordable rates too; with PCBTok, you can enjoy these two perks. Please inquire with us today to avail our FR408HR best deals!

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FR408HR By Feature


The FR4 PCB that we incorporate this material into can offer a wide array of benefits, including its enhanced mechanical strength, exceptional insulating capacity within dry or humid conditions, good resistance-weight ratio, and moisture resistance.


The HDI PCB that we incorporate this material into is popular among medical, military, aerospace, consumer electronics, and automotive applications since it is capable of integrating complex circuitry with a very sleek and presentable design.

Multilayer PCB

The Multilayer PCB that we incorporate this material into has become popular in modern technology due to its numerous benefits during the application, such as increased durability, compact design, and enhanced power and quality performance.

Prototype PCB

The Prototype PCB that we incorporate this material into offers exceptional accuracy since you have the ability to detect its flaws at an early stage and correct it right away. In addition, the components involved can be tested individually.


The High TG PCB that we incorporate this material into can provide excellent resistance to pressure and temperature; thus, they are ideal for applications that seek this feature. In addition, it can tolerate high-power density circuitry design types.

Impedance Control PCB

The Impedance Control PCB that we incorporate this material into is ideal for high-speed and high-frequency types of usage without any distortion, such as in RF Communication, since it can ensure the signals do not degrade while in operation.

What is FR408HR PCB Material?

The FR408HR PCB Material is recognized to be high-performance laminate and prepreg. In addition, they are highly suitable for multilayer boards due to their exceptional thermal performance and enhanced durability and reliability.

The electrical bandwidth has increased by 25% and its z-axis expansion by 30% owing to the multifunctional resin systems with electrical grade glass fabric (E-Glass) by Isola.

Additionally, it has exceptional resistance to moisture during the reflow phase; thus, it can provide a good connection between thermal and electrical perspectives.

If you’re looking for a board that has low dielectric constant (Dk) material, then we suggest going for FR408HR. Contact us straight away for faster assistance.

What is FR408HR PCB Material?
Features of an FR408HR PCB Material

Features of an FR408HR PCB Material

We have the following features you can enjoy in an FR408HR PCB Material:

  • Industry Recognition – It is RoHS Compliant and Lead-Free Assembly Compatible.
  • Performance Attributes – It possesses CAF resistance, capable of 0.8 mm pitch, 6x 260°C reflow capable, and 6x 288°C solder float capable.
  • High Thermal Performance – It has a High TG value of 190°C (DSC), 230°C (DMA. Base Laminate), a TD value of 360°C, and has low CTE for reliability.
  • Core Material Standard Availability – It has a thickness of 0.002” (0.05 mm) up to 0.059” (1.5 mm). Also, it is available in panel or full-size sheet form.
  • Prepreg Standard Availability – It can be in roll or panel form.

Considerations of Mechanical Properties in a FR408HR PCB Material

The major mechanical characteristics of an FR408HR PCB Material that you should take into account are as follows:

  • Peel Strength – We recommend looking out for its value since it dictates the bond strength of the material and the copper conductor. Its typical separation angle should be at 180°C. Also, it should be meticulously tested in this condition.
  • Delamination Time – It dictates the material’s resistance to exfoliation.
  • Young Modulus – It determines the strength of the material.
  • Flexural Strength – It dictates the capability of the material to tolerate any mechanical strength without experiencing breakage.

Feel free to contact us for further information on this one.

Considerations of Mechanical Properties in a FR408HR PCB Material

Choose PCBTok's Exceptional FR408HR PCB Material

Choose PCBTok's Exceptional FR408HR PCB Material
Choose PCBTok's Exceptional FR408HR PCB Material

PCBTok has been manufacturing quality PCB products for more than twelve years, including the FR408HR PCB Material. We are capable of following all your specifications.

In addition, we can provide you with the best offers we have; we value quality and affordability. Moreover, we can be transparent with you by sharing our manufacturing method.

Our FR408HR PCB Material products are ISO:9001 and ISO:14001 accredited; thus, you can guarantee a flawless working output. Additionally, we can answer all of your engineering-related questions, and you can expect complete assistance if you choose us.

We are working with reputable logistics companies worldwide; hence, you can expect a quick delivery service. Grab your FR408HR with us today with our best offers!

FR408HR Fabrication

Benefits of the FR408HR PCB Material

There is a variety of advantages you can enjoy in an Isola FR408HR prepreg system and laminate. We want to share with you their capabilities.

First, it has high thermal performance; it can operate at High TG operations. Second, it has excellent processing performance since it’s a high-speed laminate.

Third, it possesses UV Blocking, and AOI Fluorescence features; hence, you can enjoy its maximum capability with AOI systems, imaging, and positioning.

Fourth, it has lower loss and enhanced expansion of the z-axis. Finally, it is capable of many lamination cycles, via-filling, and lead-free assembly.

Crucial Parameters Process in Laminating FR408HR Material

The essential parameters process in laminating this particular material is simple; it undergoes five (5) primary areas.

Firstly, before lamination, we retain the inner layer and make sure the FR408HR prepreg is dry. Next, we control the press’ pace of heating up for lamination.

Third, we always ensure that we’re employing the right amount of temperature during the lamination to avoid damaging the product and ruining the process.

Then, we carefully calculate the curing time in developing the TG transition. Finally, to avoid warpage, we subject it to a cool-down temperature.

OEM & ODM FR408HR Applications

Defense and Aerospace

Due to the capability of this material to operate in high glass transition temperature conditions, they are widely preferred in defense and aerospace applications.

Storage, Computing, and Peripherals

Since this material is capable of lead-free process assembly, they are frequently utilized in these applications because it requires it.

Networking and Communication

One of the advantages of this specific material is its superior processing capability; they are commonly utilized in networking and communication.

Medical Industry

Since this particular material has CAF resistance and is compatible with the lead-free assembly processes, they are ideal for medical industry devices that demand this.

Instrumentation and Industrial

Due to the capability of this material to perform multiple lamination cycles and via filling ability, they are widely utilized in instrumentation and industrial field.

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PCBTok – Remarkable Chinese Manufacturer of the FR408HR

Our items are accredited in both US and Canada UL Certification.

We always prioritize your product’s specifications, quality, and performance.

FR408HR 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
1mil Deviation of Master
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.


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.


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.


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.


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.

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  • “To be honest, I wasn’t expecting anything good with my purchases online; however, PCBTok proved me wrong. I received quality and excellent products from them; they raised my standard so high after that. This clearly demonstrates how they value their customers very much, evident in their output. As of the moment, I have placed another set of orders from them because I was extremely delighted with its outcome. Thank you, PCBTok, for taking good care of my orders.”

    Ryan Kelley, Electronics Specialist from Augusta, Maine
  • “Even the slightest mistake concerning the product circuitry design was spotted by PCBTok, and I was grateful for that. If they didn’t thoroughly examine my design before manufacturing it, I would be at my lowest now. It was my first biggest project, and I could not risk it for such a small error. I cannot thank them enough for this happening; they are such an experienced manufacturer; I’m glad I found PCBTok. If you’re seeking a supplier that is very meticulous in their job, I highly recommend PCBTok; I can vouch for them.”

    Matthew Montgomery, Project Engineer from Stirling, Scotland
  • “Over the years, I kept searching for a manufacturer that can surpass my standards, and then I found PCBTok, which exceeded my expectations about my PCB orders. After that, I decided to be their constant client; I will continuously purchase my PCB needs from them. All of my bulk orders are zero-defects, and all are working perfectly fine; I have nothing to complain about their quality and performance since they are all superbly good. Thanks a lot, PCBTok! All of your team are amazing!”

    Trevor Shaffer, Procurement Component Manager from Moncton, New Brunswick
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