The Established SF305 PCB Manufacturer

Flex PCB usage is required in newer digital product technologies. Our company will benefit from SF305 flex PCB material.

  • PCBTok has manufacturing experience spanning over 12 years
  • Conduct AOI inspection and e-test for all items
  • A micro-section and a soldering sample are provided
  • Prior to manufacturing, we give complete CAM review

Please contact us as soon as possible; we will respond to your SF305 order.

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Transform Your Business with PCBTok SF305

Our commitment to quality distinguishes us from other PCB suppliers.

Aside from being an astute manufacturer, we help you meet your PCB design and PCB assembly needs.

For Flex PCBs, using the SF305 is a legitimate option.

Due to its suitability for any application, whether commercial or industrial.

For your discerning standards, we only use the best materials and manufacturing processes.

Don’t miss out on this opportunity. Inquire about SF305 now!

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SF305 PCB By Feature

Polyimide Film SF305 PCB

For Polyimide Film SF305 PCB , it means that this polyimide material included in the copper clad. The element makes it heat resistant.


For FCCL SF305 PCB, the long name is 3 Layer Flexible Copper Clad Laminate. It pegs the board as a Flex PCB in a general sense.

SF305 Flex PCB Sheet

Listed as SF305 Flex PCB Sheet, this item comes in specific length and weight per sheet as itemized.

IPC-42042 SF305 PCB

Meant to say that this PCB is safe, IPC-4204/2 SF305 PCB conforms to stringent product safety standards recognized internationally.

UL 94 V-0 SF305 PCB

Quintessentially, UL certificate for UL94 V-0 SF305 PCB assumes that this PCB will not be a fire hazard.

Halogen-Free SF305 PCB

Retain your company’s status as RoHS compliant whenever you use the Halogen-Free SF305 PCB in your electronic parts.

SF305 PCB By Function (5)

SF305 PCB By Layer & Size (5)

SF305 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.

Automatically Helps With Module Devices

Looking for a high-quality flexible type of PCB on which to utilize?

Your question is answered, as SF305 will be beneficial to you.

We have a large selection of tried and tested SF305 PCBs, so you can be confident you’re getting a high-quality product.

Our prices are also unbeatable!

So, what are you waiting for?

Shop now to get your hands on the best flex PCBs using the cost-effective SF305.

Automatically Helps With Module Devices
Processed SF305 With Precision

Processed SF305 With Precision

When you purchase an SF305 PCB from PCBTok, you can be confident that you are receiving a high-quality product that will meet your requirements.

Furthermore, unlike our competitors, we process orders quickly and without delay.

We can deliver to any address in the world.

Just ask our very friendly sales representatives.

No matter if it is a Quick-turn PCB, you are assured that the parts are flawless.

Precision matters to you, and so it does to us with your SF305 PCB purchase.

For Flex PCBs Above Par

Our SF305 Flex PCBs, which are made from a Copper Cladding Sheet, are ideal for mobile and industrial control systems.

Your Flex PCB will be backed by world-class support, as PCBTok’s expert team is always available to answer any questions.

When it comes to custom orders, we are happy to help.

We will not abandon you. We ensure that you will always have someone to turn to if you encounter any issues during your SF305 project.

For Flex PCBs Above Par

Huge Savings With Our SF305

Huge Savings With Our SF305
Huge Savings With Our SF305 2

Our claim to fame is that we do it better, cheaper. Additionally:

  • There will be enough supplies to meet your needs, there will be no shortages, absolutely guaranteed.
  • We offer a complimentary sample before placing a bulk order for added assurance.
  • SF305 can also be customized to meet your specific requirements, making it appealing for newly invented mobile phones and devices.

When you order any PCB from us, you will receive a genuine and long-lasting Shengyi SF305 product. Inquire now!

SF305 PCB Fabrication

Great Option for Your Needs

SF305 is a solid 3 Layer of Flexible Copper Clad Laminate.

Because of the polyimide component, SF305 is more heat-efficient than other PCB materials.

This leads to greater heat operational effectiveness.

As a result of its unique formulation, we ensure you that any electronic apps it is based on will be functional

This PCB laminate is also UL 94 V-0 rated, for your safety.

PCB Suitable for Consumer Electronics

Our numerous certifications, which have met rigorous criteria, demonstrate that we are the leading Shengyi SF305 PCB supplier.

To achieve the highest quality, X-Ray Tests, Functional Tests, and AOI Tests are completed

Lastly, you can trust our team members to give the best SF305 to you.

After all, they’ve got appropriate training from international exposure.

OEM & ODM SF305 PCB Applications

SF305 PCB for Office Automation

Given that an office ecosystem needs strategic planning, then SF305 PCB for office automation is used.

SF305 PCB for Automotive Applications

Great for cameras, SF305 PCB for automotive applications is an obvious choice for modern car designs.

SF305 PCB for Image Sensors

SF305 PCB for is deemed great for image sensors, because the material can be compartmentalized in tight spaces.

SF305 PCB for Video Recording Devices

SF305PCB for video recording devices refer to the DVD and DVR equipment. Some are used in industry settings too.

SF305 PCB for Consumer Digital Gadgets

SF305 PCB for consumer digital gadgets covers a lot of ground because the Shengyi material is known for its implementation in gaming devices.

SF305 PCB Banner 2
Try the Beneficial Shengyi SF305 Material

We make Flex PCB using the high-class SF305

So that you’ll never worry about break-downs.

SF305 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
  • “They tested our initial plan, discovered it needed some work, fixed the problem, and didn’t charge me a single dollar! Following that, they have already assisted us several times with their quick 24 hour PCB prototyping service. They are always honest, helpful, and just so nice! We will return soon to complete additional work for our company. Excellent customer service. Reliable as well as worth your time and energy.”

    Mark Vesterberg, Procurement Coordinator from Belgium
  • “They examined our PCB project and proceeded without incident. They did make some suggestions, and they demonstrated how to use proper English. The best PCB shop not only in Shenzhen, but anywhere! We’ve been ordering from PCBTok for years and will continue to do so as long as they’re in business! Thank you, customer support and IT team.”

    Paul Babiński, Key Account Manager from Poland
  • “PCBTok is the most trustworthy PCB company I’ve ever met. I would strongly advise you to call them because they know what they are doing. They were pleasant, straightforward, and quick. The man who responded to our email was very prompt and had a good command of the English language. While I waited, I was able to complete some work. This will be my go-to site because I am so impressed!”

    Darin Trebuchet, Business Development Manager from Halifax, Canada

SF305 PCB – The Ultimate FAQ Guide

The SF305 PCB is a general design board for electronic devices such as cell phones and laptops. Because of the large number of components, it is critical to design PCBs to meet these specifications. The following guide will answer frequently asked questions about the design process. The guide will help you determine the correct components and layout of the PCB and how to calculate the final dimensions of the PCB.

To avoid crosstalk, parallel alignments should be avoided when designing a PCB. This can lead to signal integrity issues that are difficult to resolve after the PCB is manufactured. Check that the angle of the tracks is correct to avoid mutual inductance and capacitance. Selecting components with low levels of electromagnetic radiation (EMR) will help signal integrity. Use high-quality materials such as aluminum and copper whenever possible when designing PCBs.

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