Industry Directory | Manufacturer / Research Institute / Laboratory / School
Manufacturer of surface deposition and plasma surface cleaning and etching equipment offering reliable, repeatable cleaning and etching of PCBs and other materials.
Technical Library | 2008-04-29 15:50:45.0
The electronics industry is undergoing a materials evolution due to the pending Restriction of Hazardous Substances (RoHS) European Directive. Printed wiring board laminate suppliers, component fabricators, and printed wiring assembly operations are engaged in a multitude of investigations to determine what leadfree (Pbfree) material choices best fit their needs. The size and complexity of Pbfree implementation insures a transition period in which Pbfree and tin/lead solder finishes will be present on printed wiring assemblies
Technical Library | 2008-08-14 20:48:12.0
The Restriction of Hazardous Substances (RoHS) regulations of the European Union, and similar regulations being enacted around the world, require the virtual elimination of lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (Cr6), polybrominated biphenyls (PBB) or polybrominated diphenyl ethers (PBDE) from electronic products. Allowable concentration levels in any homogeneous material contained within a product are extremely low: 0.01% for Cd and 0.1% for other substances by weight. The most significant issue affecting the practical validation of RoHS compliance in the day-to-day assembly environment is ensuring that no restricted substances, especially tin-lead (SnPb) materials, have inadvertently entered into the production stream.
Technical Library | 2013-10-03 16:05:39.0
Printed Circuit Board (PCB) is an essential component of almost all electrical and electronic equipments. The rapid growth of the use of such equipments has contributed enormously to the generation of large quantity of waste PCBs. The WPCBs not only contain valuable metals but also a large variety of hazardous materials. Conventional treatments of such WPCBs have their own limitations. By pyrolysis of WPCBs, it is not only possible to obtain the organic part of it as a fuel or useful chemical but can make further processing to recover metals much easier and efficient. In the present work, a kinetic study on the low temperature pyrolysis of WPCBs using a thermogravimetric analyser has been attempted...
Technical Library | 2021-01-28 01:55:00.0
Printed circuit board surface finishes are a topic of constant discussion as environmental influences, such as the Restriction of Hazardous Substances (RoHS) Directive or technology challenges, such as flip chip and 01005 passive components, initiate technology changes. These factors drive the need for greater control of processing characteristics like coplanarity and solderability, which influence the selection of surface finishes and impact costs as well as process robustness and integrity. The ideal printed circuit board finish would have good solderability, long shelf life, ease of fabrication/processing, robust environmental performance and provide dual soldering/wirebonding capabilities; unfortunately no single industry surface finish possesses all of these traits. The selection of a printed circuit board surface finish is ultimately a series of compromises for a given application.
New Equipment | Industrial Automation
If you need Siemens ,pleases contact Email:unity@mvme.cn Contact: Sandy Lin Email:unity@mvme.cn Skype:onlywnn_1 Telegram:+8618020776786 Mobile(Whatsapp): (+86)-18020776786 QQ :2851195456 Siemens offers a wide range of electrical engineering-
New Equipment | Industrial Automation
If you need Siemens ,pleases contact Email:unity@mvme.cn Contact: Sandy Lin Email:unity@mvme.cn Skype:onlywnn_1 Telegram:+8618020776786 Mobile(Whatsapp): (+86)-18020776786 QQ :2851195456 Siemens offers a wide range of electrical engineering-
New Equipment | Industrial Automation
If you need Siemens ,pleases contact Email:unity@mvme.cn Contact: Sandy Lin Email:unity@mvme.cn Skype:onlywnn_1 Telegram:+8618020776786 Mobile(Whatsapp): (+86)-18020776786 QQ :2851195456 Siemens offers a wide range of electrical engineering-
New Equipment | Industrial Automation
If you need Siemens ,pleases contact Email:unity@mvme.cn Contact: Sandy Lin Email:unity@mvme.cn Skype:onlywnn_1 Telegram:+8618020776786 Mobile(Whatsapp): (+86)-18020776786 QQ :2851195456 Siemens offers a wide range of electrical engineering-
Industry News | 2021-05-24 01:06:02.0
Hazard Area are areas where volatile or flammable substances, such as fuel, gas, or flammable dust are present. Personnel working in those are typically wearing heavily protected clothes, face protection, ear protection. The normal communication method is not suitable in these situations. Special communications methods are used in these situation.
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