New Equipment | Assembly Services
NextPCB has specialized in PCB Prototype and PCB Manufacturing for 15 years. In order to offer the best service and competitive price to our customers, we have PCB Prototype manufacturer and PCB Manufacturing Manufacturer dedicated to each PCB fabric
Technical Library | 2019-09-04 21:35:53.0
Since the European Directives, RoHS (Restriction of Hazardous Substances) and REACH (Registration, Evaluation, Authorization and Restriction of Chemicals), entered into force in 2006-7, the number of regulated substances continues to grow. REACH adds new substances roughly twice a year, and more substances will be added to RoHS in 2019. While these open-ended regulations represent an ongoing burden for supply chain reporting, some ability to remain ahead of new substance restrictions can be achieved through full material declarations (FMD) specifically the IPC-1752A Class D Standard (the "Standard"), which was developed by the IPC - Association Connecting Electronic Industries. What is important to the supply chain is access to user-friendly, easily accessible or free, fully supported tools that allow suppliers to create and modify XML (Extensible Markup Language) files as specified in the Standard. Some tools will provide enhancements that validate required data entry and provide real-time interactive messages to facilitate the resolution of errors. In addition, validation and auto-population of substance CAS (Chemical Abstract Service) numbers, and Class D weight rollup validation ensure greater success in the acceptance of the declarations in customer systems that automate data gathering and reporting. A good tool should support importing existing IPC-1752A files for editing; this capability reduces the effort to update older declarations and greatly benefits suppliers of a family of products with similar composition. One of the problems with FMDs is the use of "wildcard" non-CAS numbers based on a declarable substance list (DSL). While the substances in different company's lists tend to have some overlap, no two DSL’s are the same. We provide an understanding of the commonality and differences between representative DSLs, and the ability to configure how much of a non-DSL substance percent is allowed. Case studies are discussed to show how supplier compliance data, can be automatically loaded into the customer's enterprise compliance system. Finally, we briefly discuss future enhancements and other developments like Once an Article, Always an Article (O5A) that will continue to require IPC standards and supporting tools to evolve.
New Equipment | Assembly Services
Lead Time For Production Orders: Sample Lead time(days) Mass production lead time(days) Single sided PCB 1~3 4~7 Double si
New Equipment | Assembly Services
Lead Time For Production Orders: Sample Lead time(days) Mass production lead time(days) Single sided PCB 1~3 4~7 Double si
Industry Directory | Manufacturer
HX Circuit was established in 1992, located in Shenzhen, China. We are a manufacturer with one stop service from PCB, SMT, components to assembly.
600V *RO4350B *RO4003C Dielectric material & Stack up requirement FR-4(no copper): 0.05-3.2mm for option Prepreg type: 7628H(7630), 7628(43%), 7628(41%), 2116HR, 2116, 2113, 1080 and 1060 for option Copper
Technical Library | 2017-06-29 16:39:30.0
Currently there is no industry standard test method for measuring dielectric properties of circuit board materials at frequencies greater than about 10 GHz. Various materials vendors and test labs take different approaches to determine these properties. It is common for these different approaches to yield varying values of key properties like permittivity and loss tangent. The D-24C Task Group of IPC has developed this round robin program to assess these various methods from the "bottom up" to determine if standardized methods can be agreed upon to provide the industry with more accurate and valid characteristics of dielectrics used in high-frequency and high-speed applications.
FPC laser cutting machine http://www.vcutpcbdepaneling.com Email?sales@yushunli.com evaliu@yushunli.com Website?http://www.hk-yush.com /http://www.pcbdepanelingmachine.com http://www.vcutpcbdepaneling.com / http://www.yushunli.com / http://www.smtcj.
Industry News | 2010-12-03 22:31:01.0
Endicott Interconnect Technologies, Inc. (EI) announced today that the Company has added Liquid Crystal Polymer (LCP) Laminates to its family of microelectronics packaging product offerings.
280°C). Unlike PTFE based microwave materials, no special through-hole treatments or handling procedures are required. RO4003C was designed with a dielectric constant of 3.38. The RO4350B has a dielectric constant of 3.48 and is UL94V-0 rated. RO445
