Top-Notch Insulated Metal Substrate (IMS) PCB of PCBTok

If you’re looking for an insulated metal base circuit board, look no further than PCBTok. Our IMS PCBs come in a variety. We can make IMS PCBs in any size you need, and we’ll ship them quickly so you can get your project done on time. We have a large inventory of IMS PCBs in stock and ready to ship out to you today!

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Insulated Metal Substrate PCB: Perfect Choice for High Power Device

When you’re designing a product that requires high power components, it’s important to choose the best substrate. An Insulated Metal Substrate (IMS) PCB is an excellent choice because it provides superior thermal conductivity and electrical performance to other substrates. It’s also easier to manufacture, which means you can save time and money while still creating the best possible product.

An IMS PCB is an electrically isolated copper foil laminate that has an insulating layer on both sides. It has a high thermal conductivity and can withstand high temperatures and electrical charges. It is also resistant to wear and tear and has excellent mechanical properties. This makes it ideal for any application that requires high heat resistance or requires parts that are exposed to high voltage or current loads.

If you’re looking for a material that can handle the high power requirements of your components, insulated metal substrate (IMS) PCB from PCBTok is the perfect choice. Learning more on how can we help you with your next project, please contact us today!

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Aluminum Metal Substrate PCB

Popular in LED and power converting electronics due to their heat-conductive properties. Aluminum boards also extend the lifespan of an LED device by directing heat away from components.

Copper Metal Substrate PCB

IMS with copper substrate is an excellent conductor of electricity and heat, making it a perfect choice for your high-performance PCB. Our products achieve higher processing speeds with less rise in core temperature for better reliability.

Single-Sided PCB

Single-sided IMS PCBs provide an excellent solution for simple circuit boards that do not require the need for separate top and bottom layers. The other side remains bare, and is usually reserved for component placement of the circuit boards.

Double-Sided PCB

Great way to make the most of your circuit or product. It’s important for engineers to maximize their space using smart design. Double sided IMS PCB allows to build circuits that are compact and consume less power.

Multilayer PCB

Multilayer IMS PCBs are circuit boards that have more than two layers of conductive material. These circuits can be made with up to 8-40 conductive layers. Allows a high degree of precision manufacturing.

Stainless Steel PCB

Stainless steel IMS PCB is a great alternative to copper for your PCBs. It is lighter, stronger and has a better resistance to corrosion than copper. It does however require slightly more heat to solder than copper.

IMS PCB by Material (5)

  • Bergquist PCB

    Bergquist IMS PCBs are used as reliable heat sinks in many circuits. Our Bergquist-manufactured products provide substantial EMI shielding effects for circuits, and are also used as solder floats in many circuits.

  • Ventec PCB

    Ventec IMS PCB’s high performance flexible foils, laminates and prepregs are used in a wide variety of applications. Produced to extremely high quality standards and are compatible with a wide range of processes.

  • Shengyi PCB

    The high thermal resistance base material for this board provides excellent reliability for high layer count and high-temperature applications. Shengyi IMS PCB material is durable and can withstand temperatures.

  • Laird PCB

    Thermally conductive insulted metal PCB substrate system is used for heat dissipation in IMS circuit boards, to enhance cooling and prolong component life. Specific applications include thermally demanding environments.

  • Doosan PCB

    Doosan PCB’s high-end materials are loaded with top-tier electronic materials. With a robust range of substrates available for our in-house processing capabilities, we have a solution for any application of IMS PCB.

IMS PCB by Surface Finish (6)

  • IMS PCB with Immersion Silver

    Perfect for extreme conditions, the IMS PCB with immersion silver can withstand difficult operating conditions such as high temperatures and high humidity.

  • IMS PCB with Immersion Tin

    IMS PCB with Immersion Tin is a copper clad laminate board with an immersion tin surface. Has excellent solderability, plating adhesion and electrical conductivity.

  • IMS PCB with ENIG

    IMS PCB with ENIG is an electroless plating option that coats your circuit board while also improving its current carrying capacity by improving the surface roughness.

  • IMS PCB with HASL

    An IMS PCB with HASL is the process of applying a protective layer to the surface of a trace, which is then soldered. Will form a smooth surface with great leveling quality.


    IMS PCB with Organic solderability preservative or OSP, a water-based organic compound that selectively bonds to copper and protects the copper until soldering.


    This IMS printed circuit board process allows for better adhesion between immersion gold and epoxy, which produces a thinner and more electrically conductive layer.

Advantages of IMS PCB

IMS PCB is a revolutionary PCB material that offers several advantages over traditional PCB.

IMS PCB has increased thermal conductivity, which means that it can dissipate heat more effectively than traditional PCB. This is important for any electronic device that generates a lot of heat, like computers and other electronic appliances.

IMS PCB also has improved mechanical properties, which means it’s more durable. This makes it ideal for applications where there is a lot of stress on the PCB material, like in cases where an electrical component might come into contact with another part of the device or with the user’s hands.

Additionally, IMS PCB has improved fire resistivity and electromagnetic shield properties. This protects against both fire and electromagnetic interference (EMI). These properties make it ideal for applications where safety is paramount—such as medical devices—or where there is potential for EMI to disrupt operation of other electronics nearby.

Finally, IMS PCB is more SMD component friendly than standard boards; this means that more components can be fitted onto one board without compromising performance.

Advantages of IMS PCB
Assembly of IMS PCB

Assembly of IMS PCB

The IMS assembly process begins with a single sheet of metal, which is then cut and placed in a chemical solution. The metal is then etched, cleaned, and etched again to remove all unwanted material. Next, the remaining metal is oxidized—this creates an insulator between layers that helps prevent electrical shorts.

IMS PCBs are used because they are thin and lightweight, but also because they provide excellent electromagnetic shielding. This makes them perfect for use in applications where there is a high level of interference or where electrical components need to be protected from outside forces.

Because IMS PCBs are so thin, they can be easily bent into any shape required by the design of the device they are being used in. This makes them easy to manufacture and assemble into final products.

Applications of IMS PCB

IMS PCBs are an excellent choice for high-power and high-frequency electronic devices. They have a high thermal conductivity, which makes them a good fit for products that need to transfer heat quickly.

In addition, IMS PCBs are well-suited to rugged environments, making them ideal for commercial and industrial applications. They can also be used in harsh environments like those found in aerospace, military, and automotive applications.

IMS PCB is used to make computers, laptops, mobile phones, game consoles, smart watches and other electronic products that usually has LED lights. IMS PCB has many advantages, including heat dissipation and stability.

Applications of IMS PCB

PCBTok’s Most Reliable IMS PCB

PCBTok’s Most Reliable IMS PCB
PCBTok’s Most Reliable IMS PCB (1)

PCBTok is the most reliable and professional IMS PCB manufacturer in the industry. Our team has more than 12 years of experience in the field of PCB, and we have been providing high-quality products to our customers all over the world. We have a very strict quality control system and we strictly adhere to it.

We also use only high-quality materials, so you can be sure that our products are durable and long lasting.

Our customers are very important to us, which is why we always pay attention to their needs and requirements. If you need a custom IMS PCB at an affordable price, then please contact us today!

IMS PCB Fabrication

PCBTok IMS PCB’s Standard Inspection Process

PCBTok IMS PCB’s Standard Inspection Process is a comprehensive process that ensures the quality of our products. We use this process to ensure that the PCBs we manufacture meet the highest standards for performance, reliability and safety. The inspection procedure begins with incoming material inspection, which includes visual inspection, dimensional inspection and mechanical property measurement tests for each material.

Following this inspection, all raw materials are first cut into sheets before they are laminated onto a substrate using thin film technology. The laminating machine has several sensors that measure the thickness of each sheet as well as determine if there are any defects present on the surface of it. Once these sheets have been laminated onto substrates, they are cut into individual boards using automatic laser machines which ensure accurate cuts every time! These boards are then inspected again for any defects before being packaged individually for distribution worldwide!

Metal Substrate of IMS PCB

Most IMS PCBs are made with a metal substrate, which is the material that is actually connected to other components. The main types of metal substrates are aluminum, copper, and stainless steel.

Aluminum is a very common material for IMS PCBs because it is lightweight and flexible. It can also be easily bent into different shapes without breaking or becoming damaged.

Copper is another popular choice for an IMS PCB because it has many positive attributes: it conducts electricity well; it is very durable; it doesn’t corrode easily; and it has excellent thermal conductivity.

Stainless steel is a strong alloy that resists corrosion due to its chromium content. It is often used for plumbing applications because it does not corrode easily when exposed to moisture.

OEM & ODM IMS PCB Applications

Illuminated Signs

Our Insulated Metal Substrate PCB is designed to be used with LED backlighting in illuminated signs. It is available in a variety of sizes and thicknesses and last longer than it would.

LED Headlights

LED headlights are used in vehicles to provide high-quality lighting with low energy consumption. IMS PCBs are used in these applications because it has good thermal conductivity.

Power Electronics

An insulated metal substrate PCB is a kind of printed circuit board that is used to connect and protect electrical components, such as resistors, capacitors and high-performance electronics.

Engine Control

When it comes to engine control boards, insulated metal substrate (IMS) PCB is made with a thin layer of copper sandwiched between two layers of epoxy insulation for durable circuit board.

DC Power Supply

Used to provide a low resistance path for the current flow. This can be used for DC power supplies, as well as other applications such as LED lighting, automotive electronics and more.

Outstanding and Dependable IMS PCB Manufacturer PCBTok
Outstanding and Dependable IMS PCB Manufacturer | PCBTok

PCBTok IMS PCBs have outstanding thermal conductivity for cooling electronic components and offer great insulating properties.

Inquire about IMS PCB from PCBTok today!

IMS 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
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.

Quick Quote
  • “PCBTok is a PCB supplier that I have never thought of before. However, one of my colleagues suggested it to me and said that it will be the right choice if I want to buy high-quality PCB. Now that I’ve received my PCB order from PCBTok, I can confidently say that she was not lying when she told me about the quality of the product. I can also say that the personnel from PCBTok are quite friendly and professional as well. There were some problems with the Gerber files, but the PCB production team was quick to identify the error, and the order was turned around in less than a day. I’m impressed!’

    Ken Page, Electrical Technologist, Connecticut USA
  • “Manufacturing some of the best PCBs and laminates, I have always been a fan of PCBTok. I have always been impressed by the performance of PCBTok’s products. I have used them for a long time, and I have never had a problem with their excellent service. Moreover, because I have always gotten what I wanted from them, you will see that they are the only company that I use for my business. Whenever I need PCB reverse engineering assistance, I always go to them. They are a great group of professionals who have a great deal of expertise with inquiries and concerns from their customers. You should try out their products and see for yourself.”

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  • “I run a small PCB manufacturing business and I am very picky when it comes to choosing my suppliers. I have tried many before and I can say PCBTok is definitely the best for me. They are not only reliable, but also, cheap and very easy to work with. They responded quickly to my emails and I received the product within a week of ordering. Honestly, I don’t know why wouldn’t you choose PCBTok!”

    Phil Harris, Licensed Electronics Engineer from Montreal, Canada
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