Aluminium PCB – Hitech Circuits Co., Limited, from China
1. What’s Aluminium LED PCB?
Aluminum LED PCB substrate is a metal - based copper-clad sheet with good heat dissipation. A single panel is generally composed of three layers of structure, namely the circuit layer (copper foil), insulation layer and metal base layer. It is commonly found in LED lighting products. There are two sides, the white side is used to weld the LED pins, and the other side is the natural color of aluminum, which is usually coated with heat-conducting gel and then in contact with the heat-conducting part. Among all metal core PCBS, Aluminum LED PCB is the most common type. The base material consists of an aluminum core and standard FR4. It features a thermal cladding that dissipates heat in an efficient manner while cooling components and improving the overall performance of the product. Currently, aluminum-backed PCBS are considered solutions for high power and tight tolerance applications.
2. Aluminum LED PCB with Copper Layer, Dielectric Layer & Aluminum Layer
Aluminum LED PCB has a similar layout to any other printed circuit boards with copper layer(s), solder mask layer(s) and silkscreen(s). Instead of having a fiberglass or plastic substrate, Aluminum LED PCB is made from metal core substrate, which consists of copper layer, dielectric layer and aluminum layer. This substrate is called as Aluminum based copper clad laminate (CCL). The glass reinforced and ceramic filled dielectric layer in-between copper layer and aluminum layer is very thin, but plays a very important role of electric insulation and thermal conductivity (because of minimum thermal resistance) from copper layer to aluminum base. The copper is etched into conductors and metal base is to withdraw thermal (/heat). The superior heat transfer capacity of Aluminum-based PCB helps cooling components while eliminating problems associated with managing fragile ceramics.
3. Thermal conductivity of Aluminium LED PCB
The general thermal conductivity of Aluminum LED PCB is 0.3, 0.6, 1.0, 1.5, 2.0, 3.0, 5.0, 122W/m.k, etc., among which 0.3-1.0w /m.k is the general conductive Aluminum LED PCB, 1.5W/m.k is the middle conductive Aluminum LED PCB, 2.0-3.0w /m.k is the high conductive Aluminum LED PCB. 5.0W/m.k is thin abasal substrate, and 122W/m.k is ultra-high conductivity Aluminum LED PCB, also known as ALC Aluminum LED PCB.
At present, the common Aluminum LED PCB on the market has a thermal conductivity of 1.0, 1.5, 2.0W/m.k high conductivity type Aluminium LED, wherein the thermal conductivity of 1.0W/m.k Aluminum LED PCB is called general Aluminum LED PCB, its insulation layer is composed of epoxy glass cloth bonded sheet; Aluminum LED PCB with thermal conductivity of 1.5W/m.k is called high heat dissipation Aluminum LED PCB, and its insulation layer is composed of epoxy resin or other resins with high thermal conductivity; The Aluminum LED PCB with a thermal conductivity of 2.0W/m.k is called the Aluminum LED PCB for high-frequency circuit, and the insulating layer is composed of polyolefin resin or Polyimide resin glass cloth bonded sheet. The thermal conductivity of Aluminum LED PCB varies according to the copper layer in the circuit. Different processes produce different levels of thermal conductivity.
We currently support Aluminum based CCLs from Ventec, GDM and BoYu with thermal conductivity from 1.0 ~ 7 W/m•K. The Aluminum LED PCB prices of Ventec is much higher than that with GDM and BOYU since material cost, and the prices of high thermal conductivity is higher than low thermal conductivity. Hitechpcb provides a wide range of electrical and thermally conductive interface pads, thermally conductive gap filler, thermal phase change materials and thermally conductive electrically insulating materials, as well as specialized equipment for high volume Aluminum LED PCB manufacturing. Choosing Hitech Circuits PCB as your Aluminum LED PCB supplier, just send your Gerber files and fabrication notes to us, we will deliver qualitied PCB boards to you on time.
4. Dielectric Constant of Aluminium LED PCB
The dielectric constant of Aluminum LED PCB substrate is a special detection method for Aluminum LED PCB. It is a variable Q value series resonance method through the measurement of dielectric constant and dielectric loss factor. The sample and tuning capacitor are connected in series to the high frequency circuit to measure the series circuit The principle of Q value.
The performance of Aluminum LED PCB includes requirements such as peel strength, surface resistivity, minimum breakdown voltage, dielectric constant, flammability and thermal resistance.
#aluminum PCB #led PCB #alimunum LED PCB
Your leading PCB High Volume PCB Assembly supplier in China
With 15 years of experience and high efficiency in PCB assembly and manufacturing, HITECH CIRCUITS is the perfect source for Big Batch PCB assembly on a limited budget. If you are looking for a large PCBA assembly within your budget, we will be your ideal choice. HITECH CIRCUITS has more than 15 years of experience in the OEM/PCBA manufacturing and assembly of printed circuit boards, advanced production technology and equipment, professional engineers and purchasing team to provide our partners with personalized and complete process solutions. HITECH CIRCUITS’s supply chain services deliver supply chain innovation on demand. We offer a bold, yet proven service solution designed to grow market share and profit. Our innovative approach to managing the supply chain offers a complete business model that delivers the talent and transformative tools necessary to create predictability, reliability, and responsiveness across your entire supply chain. Our practitioners are passionate about supply chains. We have spent a generation understanding, refining and building the best in intelligent supply chains. We provide talent on-demand with expertise in data analytics and strategic technologies that can help you predict, plan and respond more effectively.
Some designs require assemblies in small volume, maybe just prototypes, while others require them in high volume. At SMT house, High Volume, Large Volume, or Big Batch PCB Assembly always refers to printed board assembly projects with quantities more than 5K pieces. HitechPCB has the capability to offer high volume PCB assembly services to meet your requirements of high-quality, competitive price, on-time delivery and smooth communication in any manner of full turnkey, consigned and partial turnkey.
Also, if your business is involved in applications that require high-volume PCB assembly, the company to contact is HitechPCB, because we’re a complete turnkey solution for printed circuit boards assembly, we are ideally suited for bulk PCB assembly orders. Our state-of-the-art equipments, large facility and wide range of highly-qualified experts give us the capability of high-volume PCB assembly of up to 9,000,000.
We are also the perfect source if you’re looking for large-order PCB assembly on a budget. Because of our high level of efficiency and more than 10 years of experience with printed circuit board manufacturing and electronics assembly, we offer large printed circuit board orders at surprisingly competitive prices compared to other PCB manufacturers or PCB assembly companies.
Our large order PCB assembly process starts with a tested and practiced set of workflow guidelines for every phase of the process, from pre-order PCB design consultation with professional veteran engineers to PCB fabrication, components sourcing, PCB assembly, PCBA testing, PCBA inspection, PCBA packing and shipping all under the auspices of a highly-skilled production staff. You can be confident that no matter how many circuit boards you order, you will enjoy fast service, low prices and extremely high quality.
With our excellent after-sales service, 24 sales and technical support team, quick response service, we will be your best Big Batch PCB assembly manufacturer inChina. A wide variety of highly qualified experts
Why choose Hitechpcba Big Batch PCB Assembly
Compared to our competitors, Hitechpcba offers large printed circuit board orders at very competitive prices. The risky big batch PCB assembly process begins with a set of tried and tested workflow guidelines. From ordering PCB design to component procurement, manufacturing, testing, assembly, inspection, shipping and packaging. This is all under the guidance of our highly skilled production staff.
No matter how many boards you order, you'll love the fast response service, low cost, and surprisingly high quality.
Whether you are seeking for product designer, electrical engineer, system integrator, manufacturer, or big batch PCB manufacturing and assembly, low cost big batch PCB housing, electronic assembly services, Hitech Circuits PCB Assembly team will be your perfect choice for big batch PCB assembly plant inChina.
#high volume PCB assembly #pcba manufacturer
LED PCB Assembly – Hitech Circuits Co., Limited
What is the LED Circuit Board assembly?
Generally, LED PCB assembly is considered to be a circuit board that has the LED components soldered to it. The LED is soldered to the printed circuit board and features a chip that creates the light as electrically connected. A thermal heat sink and a ceramic base are used to bond the chip. Not all the PCB products can be used in Led industry, as an LED PCB is easy to create a high volume of heat, but making it hard to cool with traditional methods. For this reason, metal core PCB is widely used in LED application because of their enhanced ability to dissipate heat, especially aluminum pcb is often used to fabricate PCB for LED lights.
We’ve had great LED PCB assembly experiences with top LED chips to brand such as Cree, Luxeon, Osram, Nichia, Lumileds, MLS, EVERLIGHT, Samsung, LG, Seoul., etc. PCB LED lights can be incorporated into numerous lighting applications due to their combination of excellent energy efficiency, low cost and maximum design flexibility.
Application of LED PCB Assembly
Hitechpcba serves customers in different industries, providing highly reliable and innovative LED PCBs for various applications:
• Horticulture light LED PCB Assembly
• LED controller PCB Assembly
• Computer LED display and indicators
• LED lights PCB Assembly for medical use
• Automotive LED PCBs Assembly include PCBs for brake lights and headlights
• Street lighting LED PCB Assembly
• Flashlights and camping accessories
• Traffic light PCB Assembly
• Commercial lighting LED PCB Assembly
LED PCB Assembly specification
Number of layers for LED PCB
These layers are made up of aluminum and magnesium, but now have Copper base material and Ceramic base materials for LED PCB industry, we can meet it.
Aluminum LED PCBs stand out among other PCBs because it has a good insulation characteristic and has a better machinery performance, the cheap cost is one important factor too.
Types of layers for LED PCB Assembly
Normally, the base layer is made using aluminum alloy metal.
This aluminum alloy substrate used in making the base makes it ideal for through-hole technology which transfers and dissipates heat.
A thermal insulation layer is made using some ceramic polymer which has good viscoelasticity characteristics.
It is highly heat resistant and protects the PCB against heat and mechanical stress.
The circuit layer, which is covered by a copper foil which can range from one to ten ounces.
LED Board type- single or in panel
Some boards are shapeless. For this reason, LED PCB panels are used. This reduces time, labor production and testing time.
Some LED PCB Assembly is done on a single board while others are done on panel boards.
LED PCB Assembly Process
Roughly, the PCBA process can be divided into theses phases: soldering paste printing > SMT (surface mounted technology) > reflow soldering > AOI (automated optical inspection)> THT (through-hole technology) > wave soldering > touch-up and cleaning > IC-programming > FCT (functional tests) > aging testing.
Below we show you the process.
Step1. Summarizing Project Information
Before contacting your supplier, make sure you have all the project information. Suppliers will need info following for quoting LED PCB assembly:
Gerber
BOM
LED PCB specification
Quotation quantity
Once you have gathered these information, you can contact us and request for a quote.
Of course, you can also provide the schematic, LED PCB Assembly pictures and even samples to us. The more details they have, the more accurate the supplier’s quotation will be.
Step2. Discussion and details about custom LED PCB Assembly
Different projects will have different requirements. Remember the special requirements mentioned in step 1? That’s going to be the focus of this session. Equipment and engineering capacity will not be identical between suppliers. Make sure your supplier has the equipment to produce and assemble major components and the corresponding testing capabilities.
For example, some vendors don’t have X-ray testing equipment, which means they can’t check the mount quality of BGA chips. Outsourcing this step will increase risk and cost. That’s what you don’t want.
Also, pay attention to time taken by the supplier to quote. Motherboards often contain hundreds or even thousands of components, and they are supplied by different manufacturers. To ensure the quality of the components, the supplier sourcing team will make multi-inquiries from these manufacturers or authorized suppliers to match customer’s requirement, which usually takes 2-3 business days, and even longer for some scarce chips. Therefore, if your project is complex and the supplier quotes you within few hours, double check with them.
#LED PCB #PCB assembly #LED PCB manufacturer China
PCB Assembly Prototypes Manufacturer – Hitech Circuits Co., Limited
What is a prototype PCB assembly?
PCB prototyping is the experimentation pilot stage of the product which is to be mass produced at a later stage. This is more of an experiment which is done after the initial discussions and the design. This offers a pre-production analysis of the boards that are to be manufactured, reducing the possible number of errors in the PCB design. PCB prototypes help the manufacturer analyze the strengths as well as weak areas of their proposed circuit boards. Prototypes also serve as a reference point for future versions of the same product. At Hitechpcba, we handle PCB prototype assembly in quantities from one to hundred printed circuit boards.
We have acquired capabilities that enable us to serve our clients better. All these years, we have worked on many complex prototype PCB assembly projects, and we believe the following capabilities have helped us serve our clients better.
Prototype PCB Assembly Services: We specialize in the following prototype printed circuit board assembly services.
SMT: We can provide single-sided and double-sided surface mount PCB assemblies in different specifications.
Plated Through Hole: We offer plated through hole assembly with selective soldering.
Mixed Assemblies: We often work on projects involving mixed assemblies – through-hole and SMT and electromechanical assemblies.
PCBA Testing: All the PCBA functional testing is performed in-house. Over the years, we have invested in various test fixtures and equipment, which helps us ensure the quality of PCBA. Currently, we provide the following types of PCBA testing services:
Flying probe testing for PCB
Functional testing including system and board-level testing
General PCB Assembly Capabilities: Our general PCB assembly capabilities are not limited to these:
RoHS, leaded or lead free, clean and no chemistries
PCB components including various types of QFNs, BGAs, 0105, 0201, 0804, and press fit components in small quantities.
What are the benefits of a prototype PCB assembly?
Prototype PCB assembly comes with several advantages. These benefits play a major role in the facilitation of your PCB manufacturing. Some of these benefits include:
Detection of Flaws Early
With prototype PCB, you will easily detect whatever flaws are present during the product’s development stages. This will allow you to solve the issues thereby saving you some money if you had gone ahead to make the production having the flaws in them.
If you go ahead to make changes during the production, there may be a need for more technicalities, and this may be expensive.
Testing of Each Component
With a prototype, you will be able to test all your system’s elements individually before you go ahead to set it up. You should do this because it is important especially for very complex projects composed of several parts that are PCB based.
When you validate each of these components, you will be able to identify those areas having issues that you should look into. This is the only way the project can function the right way.
Reduction in Total Costs
Utilizing the prototype bare PCB for any of your projects could go a long way in reducing what you’ll have spent in total for the project. With prototyping, you will be able to notice those errors in your project and then make corrections before you start the real production.
As soon as these flaws have been checked and rectified, then you may continue with the manufacturing of your Printed circuit boards in large quantities, thereby saving you unnecessary costs.
High-Quality PCBs
Why prototyping your PCB is important is to help you test if your project will function effectively. When we talk of testing, it involves the identification of errors present and then rectifying and making corrections to them.
Therefore, the eventual PCB after the prototyping will be of high quality that surely meets standards set internationally.
Less Turnaround Time
With prototype PCB assembly, you will be able to reduce the total time used in producing your printed circuit board. While making use of prototype printed circuit boards, you’ll be able to see the errors and then make corrections before you start the actual production.
Therefore, the eventual prototype will be free of defects. This implies that your PCBs will be produced quickly by your manufacturer.
For further details freely contact Cynthia at [email protected]
#pcb #pcb assembly #pcba China