Marketplace

[a]https%3A%2F%2Fwww.greenpcba.com%2Fpcb-surface%2F[/a] # electronic # manufacturing # service # china PCB surface finish include: PCB plating finishes is a coating between a component and a bare board PCB. It is applied for two basic reasons: to ensure solderability, and to protect exposed copper circuitry. As there are many types of surface finishes, selecting the right one is no easy task, especially as surface mounts have become more complex and regulations such as RoHS and WEEE have changed industry standards. Recently, the common surface PCB treatment technologies which GreensTone may use when manufacturing PCBs are HASL(hot air solder leveling), organic coating (OSP), electroless nickel/gold, immersion silver, immersion gold, etc. The solder mask is mainly Liquid UV Photo-imageable Ink with green, red, black, yellow, white, matt black/green, bule, gray, etc. green should be the most commonly used one. The suggested soldermask clearance in GERBER is 2-4 mils. The silkscreen layer is the top layer of the PCB and serves as a reference indicator for placing components on the PCB. The graphics and text on PCB, a circuit board is usually printed with a permanent non-conductive epoxy ink. The color is typically white. Screen printing is used to specify useful information on the PCB board, which can help users during the assembly. It is used to mark component values, part numbers, test points, polarity, etc. PCB Surface Features PCB surface finish Comparison of cost and solderability Actual solderability: Electroplating nickel gold> HASL > OSP > ENIG >Immersion silver >Immersion tin Cost: Electroplating nickel gold > ENIG > Immersion silver> Immersion tin > HASL > OSP. The functions of the solder mask layer on the PCB board Preventing short circuit from bridge connection in the soldering process Preventing the physical breakage of a conductor circuit Prevent short circuit between conductive lines and solder joints when proceeding reflow soldering, wave soldering, and manual welding Preventing the copper layer from oxidation Its high Insulating brings the possibility to the high density of PCB finish Here are three main ways to add silkscreen coating on a PCB Manual screen-printing: This is a process that can be used when line widths are greater than 7 mm and the registration tolerance is 5 mm. Liquid Photo Imaging (LPI): This process provides more accuracy and legibility over manual screening and is used when line widths are greater than 4 mm Direct Legend Printing (DLP): This is the most accurate way of adding a silkscreen, however, it is very expensive. For more information about electronic manufacturing service china and turnkey pcb assembly, please feel free to contact us!

PCB Capability

[a]https%3A%2F%2Fwww.greenpcba.com%2Fpcb-capability%2F[/a] #printed #circuit #board GreensTone has successfully served customers with pcb manufacturing capabilities service in communication, industial devices, new engrgy, power supply, sensors, smart home applications control, smart industial control , medical devices and security control device and so on. GreensTone PCB Quality Control 1. PCB Files Checking Before manufacturing For every orders we recieved, Gerber files should be checked by our PCB engineers before sending to production. Engineers would help to check the board edge clearance, drilling, pad spacing, impedance and routing. if the engineer finds a problem with the file or something can't be optimized, our engineers will contact the customer to confirm the files again. 2. Raw Material Guarantee The quality of the raw materials determines the quality of the finished products. GreensTone has been working with leading suppliers in the industry,and apply materials as to international standards and customer requirements, such as Rogers, Shengyi, KB (kingboard) sheet, Rohm&Haas, TAIYO for solder mask ink. 3. The Good Performace Production Equipment To ensure the quality and reliability of PCB products, GreensTone continuously introduces advanced equipment to improve their pcb fabrication capabilities, including: Automatic solder mask production line LDI exposure machine Fully automatic PCB etching equipments line Fully automatic PCB testing machine line Fully automatic electroplating line Automatic silkscreen printing production line 4. Quality Inspection Method Comply with ISO9001:2015 requirements Production processes are in line with IPC standards Basic visual inspections Rigorous electrical tests. Flying Probe Testing AOI (Automated Optical Inspection) Copper Thickness Tester If you are looking for a reliable ems manufacturing company, don't hesitate to contact us! For more about printed circuit board, contact us.

DELIVER MOLDING MECHANICAL DESIGNS SYSTEMATICALLY

[a]https%3A%2F%2Fwww.greenpcba.com%2Fmolding-services%2F[/a] #printed #circuit #assembly GreensTone mechanical design engineers will work with your team to design and test the best solutions for your products. Gain full access to our specialized molding capabilities including layout, thermal analysis, prototype and verification testing, CNC machining, sheet metal fabrication, plastic molding and 3D printing. Molding or moulding, is the process of manufacturing by shaping liquid or pliable raw material using a rigid frame called a mold or matrix. This itself may have been made using a pattern or model of the final object.GreensTone has a large team of engineers, designers and manufacturing experts. These technical specialists are located in shenzhen china with backgrounds in mechanical design, testing, materials, injection for plastics, manufacturing techniques and CAD modeling. Greenstone custom moulding service Capabilities Mold design: Facility: with automated, three-axis, VMC centers, and sinker EDMs. supply metal stamped parts ranging from small to large precision metal components provide a wide range of custom mold making services, from the prototype, pilot run, to mass production. Tooling design, manufacturing and repairing: Encompass a variety of capabilities, such as 2D or 3D CAD modeling, prototyping, inspection, design, and engineering analysis. offer full technical DFM support and comprehensive documentation, available upon request. Greenstone mould making services Capabilities Molding Quality Control Process 1. Pre-production Document Check Before the production, our engineering team conducts a technical evaluation of your part design. This includes an assessment of important factors such as 3D and 2D drawings, material, surface finish, structure, workmanship and etc. When the engineer finds that there is a problem with the file or there is something that can be optimized, communicate with the customer in time to eliminate the problem before processing. 2. Raw Material Guarantee GreensTone strictly controls material and surface treatment suppliers, using high-quality materials to produce parts. Upon customer request, we provide certification of the materials used to manufacture your parts. Reports come from raw material manufacturers and usually include: material model number, material grades, material dimensions, mechanical properties, chemical analysis, etc. 3. The World's Leading Production Equipment To guarantee our strict quality control, we have the highest specification production workshop and the most advanced equipment, including but not limited to the following: -axis,4-axis,5-axis CNC Machining Center Turn-milling Complex Machine EDM Equipment NCT Punch Machine Laser Cutting Machine Press Brake Machine 4. In-process Quality Control We strictly comply with ISO9001:2015 requirements. The parts will be processed in strict accordance with the established technological process. After the FAI report is passed, the mass production can be carried out. There is IPQC in the production process to ensure that every process is correct. 5. Quality Inspection Before Shipment We have a dedicated QC team that 100% inspects finished parts before delivery, ensuring the parts we manufacture are of the highest quality. For all orders, we provide inspection reports upon request. If you are looking for a reliable mold making company china, don't hesitate to contact us! There are many electronics assembly companies, but we are one of the best choices for you. For more about printed circuit assembly, contact us.

Heavy Copper PCB

[a]https%3A%2F%2Fwww.greenpcba.com%2Fheavy-copper-pcb%2F[/a] #china #heavy #copper #pcb Heavy Copper PCB PCBs with a copper thickness of more than 70um are called thick copper PCBs, sometimes also called thick copper PCBs. Copper thickness typically varies from 105 to 400 µm. The thicker the copper, the higher the power dissipation of the board. These thick copper plates are used for high current output and improved thermal management. Thick copper makes it possible to create boards with cross-sections for high current loads, which also facilitates heat dissipation. Greenstone is one of the China heavy copper pcb manufacturers which can provide the most professional products and services. Advantages of china heavy copper pcb Thick copper PCB is widely used in various household appliances high-tech products military medical other electronic equipment. The application of thick copper PCB makes the core component of electronic equipment products-circuit boards have a longer service life, and at the same time it is very helpful to the size reduction of electronic equipment. For more information about contract manufacturing china and circuit board assembly, please feel free to contact us!