High-TG PCB High Temperature PCB fr4 Material The Glass Transition Temperature (Tg) is one of the most important properties of any epoxy and is the temperature region where the polymer transitions from a hard, glassy material to a soft, rubbery material. Circuit board material must flame-resistant, it canâ??t be burned at a certain temperature and only be soften. The temperature point is called the glass transition temperature (Tg). The higher Tg point means higher temperature requirement during lamination. And the Aluminum clad Circuit Boards will be hard and crisp, which will affect hole and the electrical properties. Ordinary PCB materials at high temperatures, not only will be soften, deformation, melting and other phenomena, but also the mechanical and electrical properties decline sharply. General fr4 Tg is 130-140 centigrade, moderate Tg is greater than 150-160 centigrade, High-Tg is greater than 170 degrees. The higher of Tg, the better performance of PCB heat resistance, moisture resistance, chemical resistance, stability and other characteristics. FR4 is a code name for grade of Epoxy Glass material. Tg means Glass Transition Temperature. When the working temperature reaches to the melting point, that means the temperature exceeds the Tg value, the status of pcb material will be changed from glassy to liquid, which will affect the function of pcb. And this value is related to the stability of the pcb dimension. As usual, made with Tg â?¥ 170â?? pcb material, which is called high Tg printed circuit board. With the rapid development of the electronics industry, high Tg material is widely used in computer, communication equipment, precise apparatus and instrument and etc.
What is High Frequency (HF) PCB Electronic devices with high frequency is the developing tendency nowadays, especially in wireless network. Satellite communication growing rapidly, information products move towards high speed and high frequency. Thus developing new products always need to use high frequency substrate, satellite system, mobile telephone receiving base station and so on, these communication products must use high frequency PCB. The features of Thick Copper PCB. DK should be small and stable enough, usually the smaller the better, high DK may lead to signal transmission delay. DF should be small, which mainly affect quality of signal transmission, the smaller DF could make smaller signal wastage accordingly. The thermal expansivity should be the same with copper foil as much as possible, because the difference will lead to copper foil separated in the changes of cold and heat. Water absorptivity must be low, high water absorptivity will affect DK and DF when in the wet environment.
What is Flexible PCB? Flexible printed circuit boards, also called Flexible PCBs or Flex PCBs, derive their name for their ability to enable the circuitry to be designed to fit the electronic device or product, as opposed to building the device to conform to the circuit board. Immersion Tin PCB are characterized by a distinctly patterned printed circuitry and component arrangement highlighted by a malleable base material. What are Advantages of Flexible Printed Circuit Boards? Flexible printed circuit boards offer a number of potential benefits including: Saving Space. Flex PCB design requires only about 10 percent of the space and weight of an ordinary circuit board assembly, offering greater installation and packaging freedom. The inherent flexibility also permits tighter bend capabilities. Maximum Reliability. A flexible printed circuit board requires fewer interconnects, which in turn requires fewer contact crimps, connectors and solder joints. Simply put, a flexible PCB board does not contain as many potential sources for failure, which enhances their reliability. Enhanced Capabilities. The flexible printed circuits boards are compatible with virtually any type of connector or component and works well with options such as ZIP connectors. They also perform extremely well in extreme temperatures and offer superior resistance to radiation and chemicals. Cost Savings. Cost-saving advantages of Flexible PCBs include reduced material and packaging demands, lower parts replacement costs and assembly errors that could result in the need for repairs. Thsse benefits make flex PCBs ideally fit for a wide range of applications in industries such as Military, Transportation, Medical, Consumer Electronics, Automotive, Aerospace, Communications and Industrial.
Rigid-Flex circuit boards are composed of a combination of rigid and flexible circuit boards that are permanently connected to one another. The proper application of Rigid-Flex circuit boards offers optimum solutions for difficult, limited space conditions. This technology offers the possibility of a secure connection of device components with the assurance of polarity and contact stability, as well as a reduction in plug and connector components. Additional advantages of pcb bare board are dynamic and mechanical stability, the resulting 3-dimensional freedom of design, simplified installation, space savings, and maintenance of uniform electrical characteristics. Use of Rigid-Flex circuit boards can reduce the total cost of the final product. Rigid-Flex circuit boards give you unlimited freedom of packaging geometry while retaining the precision density and repeatability of printed circuits. As a high reliability replacement for wire and wire harness assemblies, flex circuits provide a significant cost savings with no reduction in performance.
Aluminum PCB Advanced Circuits Specification Aluminum Printed Circuit Boards Contain a Thin Layer of Thermally Conductive Dielectric Material that Transfers Heat. There are many names for these products; Aluminum clad, aluminum base, Metal clad printed Circuit Board (MCPCB), Insulated Metal Substrate(IMS or IMPCB), Thermally conductive PCBs, etcâ?¦ but they all mean the same thing and perform the same way. How Are Aluminum PCBs Made? A thin layer of thermally conductive but electrically insulating dielectric is laminated between a metal base and a copper foil. The copper foil is etched into the desired circuit pattern and the metal base draws heat away from this circuit through the thin dielectric. Operating theory: The power device surface mounting on circuit layer, it is ideally suited for the mounting of high power light emitting diodes (LEDs) easily dissipating the heat generated by power devices.
For Prototype PCB, our ablility is from 1 to 10Layers, we are able to manufacture low volume single and double-sided PCBs to complex multilayer PCBs with blind and buried vias at affordable prices PCBmain not only makes your pcb bare boards quick, but also makes your job right as well as cost-effective. This greatly reduces your cost and shorten the time for developing your electronic products. Reduced time to market is key to success. we are experts in providing pcb prototype service to customers worldwide. Prototype Printed Circuit Boards Meet High-Quality Standards Pcbmain offers rapid PCB prototyping services for Quick-Turn PCB Fabrications at high quality and low cost. We're fully compliant with ISO9001:2008 quality management systems, and we have an in-house quality control department to verify that all work meets each regulation depicted by the high standards.
Standard PCB service refers to full feature printed circuit board manufacturing service. With years' experience in pcb fabrication company, we have handled hundreds of thousands of PCB projects, and covered almost all kinds of substrate materials including FR4, Aluminum, Rogers, etc. This page only touches standard FR4 based PCB. For PCBs with special technical substrate, please refer to corresponding webpages for information. Unlike Prototype PCB service, our Standard PCB service has tighter production tolerances.
It is me named Victor Cheung greeting from a factory (Main PCB design & Manufacturing / PCB Assembly) with ONE STOP SERVICE and turnkey project (OEM/ODM). We can make and provide you Double-layer PCBs, Multi-layer PCBs, Rigid PCBs, Flexible PCBs, High frequency PCBs and Aluminum-backed PCBs, Copper-backed PCBs etc and PCB asscembly, I wish I could cooperate with your company to make and ship the PCBs / PCBA to you with comparative prices.
Hello, It is Mr Victor Cheung Greeting from a PCB Assembly manufactuering PCB factory of Grandtop Electronics Co., Ltd. (3W "dot" grandtopgroup"dot"com) For more infromation pls contact me. Best regards!
Wide variety of Metal Core PCBA : Aluminum, copper or iron
Single layer, double layer or multi-layer
single-layer, double side or multi-layer
Printed Circuit Board Assembly China Addisen Technology (Zhongshan) Co., Ltd. was established by two masters in 2003 in china, the company owns a strong technology research team organized by Doctors and Masters. We specialized in R&D printed circuit board since 2003.
Advance control functions Closed-loop vector control. SVPWM pure sine wave control which eliminates low frequency electromagnetic noise. Optional active/passive PFC. Reliable operation It has short-circuit protection, over-current protection, blocking protection, power failure protection and son on. Isolated communication port design. Integrated phase loss and phase fault protection. Air cooling and fan cooling. Optional IP55 protection level. Convenient to use Offer customized design with built-in controller and external controller for option. The ultra-wide speed range from 10% to 100%. Configurable frequency hopping point. Energy saving and high efficient Automatic defrosting under heating mode. Three levels of anti-freezing function. It has high power functions of refrigeration and heating with energy-efficient and produces confort by constant room temperature control. Saving over 30% energy.
Konrich Technologies has been providing printed circuit boards (pcb) to our customers throughout the world for many years. With our rich experience in pcb manufacturing, we received a high recognition from customers. Good quality record, high on-time delivery rate and excellent customer service leaves a very good impression to our customers and also make us very competitive in the industry. With the advantage of our strong R&D, we can produce many types of pcb boards - normal single, double to multilayer boards, HDI as well Flex & Rigid-flex boards. Our pcb boards are widely used in many fileds - Industrial control, Communication, Medical, Security, Consumer Electronics, etc. .
Single Side : Maximum shipping Panel Size 470mm*570mm Finished Board Thickness : Minimum Board Thickness : 0.6mm+/-0.1mm , Maximum Board Thickness : 2.0mm+/-10% Dielectric Material : Heat Conductive Glue / FR4 Aluminum Type : 5052 Copper Thickness : 1/2~2oz Trace Width / Spacing : Minimum Line Width / Spacing(Internal&External) 0.1mm ,The tolerance followed by IPC-6012 Surface Finish : Immersion Gold(Ni/Ru) 0.025~0.1um /Lead Free HASL (Min. 2.5um)/OSP (Entek CU106A) 0.2~0.5um Solder Mask : LPI Test : Hi-Pot Test
Layers: FPC 1~4 L Finished Board Thickness with Copper : Min 0.075mm (1L) / Max 0.3mm (2L) Finished Board Thickness Tolerance: �±0.02~0.04mm Impedance Control :+/-10% Base Copper Thickness : Standard : 1/3oz,1/2oz,1oz / Spcial:2oz Base Film Thickness:Standard:0.5mil , 1mil / Special : 2mil Stiffener:PI / FR-4 /SUS Finished Hole Diameter:Min { }0.15mm / Max { }6.30mm Finished Hole Diameter Tolerance PTH�±3mil(�±0.075mm) npth�±2mil(�±0.05mm)
Layers : Sample 1~32 / Mass Production 1~20 Size :Max shipping size is 600mmx550mm , +/-0.15mm Finished Board Thickness: Min 0.4mm(4L)/0.6mm(6L),+/-0.1mm (Max) 3.6mm(2.2~3.6mm depends on material), +/-10% Copper Thickness :1/3~5oz (Depends on material) Impedance Control :+/-10% Via Holes (Min) : Mechanical Drill:0.2mm / Micro Via:0.1mm PTH+/-0.075mm NPTH +/-0.05mm Aspect Ratio : Sample :10:1 / Mass Production :8:1 Min Trace(Width/Spacing) : Internal 0.075mm / External 0.075mm The tolerance followed by IPC-6012 Advance Process : Blind Routing Cavity,Coil Board,Plug Hole With Epoxy,Half Hole Plated Spacing between Pads : Min :8 mil
Konrich can produce many types of pcb boards - normal single, double to multilayer boards, HDI as well Flex & Rigid-flex boards. Our pcb boards are widely used in many fileds - Industrical control, Communication, Medical, Security, Consumer Electronics, etc.
Circuit Board Assemblyï¼? Chip-on-board (COB) Surface-mount technology (SMT) Ball-grid array (BGA) Through-hole Advantages: One-stop service included PCB fabrication and PCBA. Components sourcing Cost-effective Min order 1 pcs PCB Assembly Capabilityï¼? The Minimum PCB Dimension: 50x40mm The Maximum PCB Dimensionï¼?600x400mm The Maximum Component Height: 25mm The Maximum PCB Weight: 3KG The Minimum Components Size: 0201(0.5Ã?0.25mm),Flip-CHIP,QFP,BGA,POP The Maximum Components Size: 55mm The Minimum PCB Dimension: 50x40mm The Maximum PCB Dimension : 510x460mm The BGA/QFP pitch :0.3mm Testing: ICT, Burn-in, Function Test,Temperature Cycling The Lead time of PCB assembly: 7-10 WDS About King Sun PCB: King Sun PCB Technology is a manufacturing enterprise that be engaged in high density interconnector multilayer, various types PCB prototype, small and mass production PCB produce. Our products included: HDI PCBs, Via in PAD PCBs, ENEPIG PCBs, Castellated Holes PCBs, Small BGA ball PCBs, Heavy copper foil PCBs, High Frequency PCBs, Rigid-Flex PCBs.Products are used in wide range of IoT industries, Hi-Tech industries, Power supply, Telecommunication, Computer, Industrial control, Digital products, Science and Education instruments, Medical instruments, Automobile, etc. In 2005,we expanded our products to develop and manufacture metal core base PCBs(MCPCB) ,now commonly used in LED lighting and Automobile industry. MCPCBs first class material ensure reliability and play a major role in excellent heat dissipation. It greatly increase longevity of LED Lighting. now we have gained reputable recognition in famous LED Lighting companies. King Sun concentrates on high quality, fast and satisfied service in summary, our service offering are: ï?§ Quick-turn around prototypes fabrication. ï?§ Low cost for mass productions orders. ï?§ MCPCB fabrication. ï?§ PCB prototype assembly ï?§ Function test after PCB assembly ï?§ Stencil making ï?§ Components source
