The document discusses green technologies used in printed circuit board (PCB) fabrication. It describes direct metallization processes as alternatives to electroless copper plating that are more environmentally friendly by using fewer chemicals and resources. These include palladium-based, carbon/graphite-based, and conductive polymer-based processes. The document also provides background on PCB manufacturer DaShunChang Electronic and their experience producing various PCB types.
What is a plastic pipe?
History of plastic pipe
Types of plastic piping
Why plastic pipe?
Plastic pipe and fittings
PVC (why PVC is so common)
Cutting and joining of plastic pipe
What is a plastic pipe?
History of plastic pipe
Types of plastic piping
Why plastic pipe?
Plastic pipe and fittings
PVC (why PVC is so common)
Cutting and joining of plastic pipe
Polyvinyl Chloride aka PVC is one the famous and highly demanding plastic material in the world. PVC plastic is produced by monomers of polymerizing vinyl chloride and mostly used in construction, consumer goods, packaging, electrical and transportation industries.
its about the pvc (polyvinyl chloride) doors about its properties, advantages and disadvantages with market survey of pvc doors according to indian rupees and in additional i can provide pvc doors plan, elevation and section sheet on request.
Piper Plastics recently developed KyronMax a short fiber thermoplastic material that has more mechanical strength than long-fiber thermoplastic (LFT) materials.
PVC for its excellent properties is so far the most commonly used material for insulation and sheathing. PVC cable insulation can be recycled, which benefits both environment and business.
Manufacturers and Worldwide Exporters of Electrical Grade Insulation Paper, Foil and Film Based Products for Transformers, Cables and Conductors Industries.
A report on the topic of PCB Manufacturing. Crystal clear explanation is provided so that everyone can understand each and every process. Students can also make use of this document. In this report few points to be added later on ill upload the full standard of the document.
Polyvinyl Chloride aka PVC is one the famous and highly demanding plastic material in the world. PVC plastic is produced by monomers of polymerizing vinyl chloride and mostly used in construction, consumer goods, packaging, electrical and transportation industries.
its about the pvc (polyvinyl chloride) doors about its properties, advantages and disadvantages with market survey of pvc doors according to indian rupees and in additional i can provide pvc doors plan, elevation and section sheet on request.
Piper Plastics recently developed KyronMax a short fiber thermoplastic material that has more mechanical strength than long-fiber thermoplastic (LFT) materials.
PVC for its excellent properties is so far the most commonly used material for insulation and sheathing. PVC cable insulation can be recycled, which benefits both environment and business.
Manufacturers and Worldwide Exporters of Electrical Grade Insulation Paper, Foil and Film Based Products for Transformers, Cables and Conductors Industries.
A report on the topic of PCB Manufacturing. Crystal clear explanation is provided so that everyone can understand each and every process. Students can also make use of this document. In this report few points to be added later on ill upload the full standard of the document.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
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Introduction to Surface Mount TechnologyABDUL MUNAFF
Surface Mount Technology (SMT) refers to a specific type of electronics assembly where electronic components are attached to the surface of a substrate (typically a printed circuit board).
SMT is a modern alternative to traditional thru-hole technology where components are attached to substrates by leads that passed through holes in the PCB.
Surface Mount components require less space so SMT is helpful in product miniaturization.
SMT Overview
SMT V/S THROUGH HOLE
Basic SMT process flow
Equipments used SMT Assembly
Through Hole Assembly & Soldering
ELECTROSTATIC DISCHARGE
RoHS
E-WASTE MANAGEMENT(COPPER RECOVERY FROM PCB) ijaranjani
Anything that intends to discard or handles and produces and is not wanted or required.
Disposing of waste can have a significant impact on the environment.
It is in your interest to identify ways of reducing the amount of waste your business generates.
PCB Fabrication, China PCB Circuit Board Manufacturing from ChinaLeah-Hitech PCB
As a leading China PCB manufacturer, Hitech Circuits has rich experience and extensive expertise.from PCB layout & design, and PCB manufacturing to PCB testing and after-sales, all processesare finished in our ISO-certified factory. We put quality as the first priority, each circuit board goesthrough a strict quality control process before delivery, We specialize in producing all kinds ofprinted circuit boards, including PCB prototypes, FR4 PCB, Double-sided PCB, Aluminum PCB,RF PCB, Ceramic PCB, High-Frequency PCB, HDI PCB, etc. If you are looking for a reliablePCB board manufacturer in China, please don't hesitate to contact us.
As a leading one-stop electronics manufacturing services provider in China, Hitech Circuits Co., Limited (sales12@hitechpcb.com)offers high quality, cost effective and quick turn PCB board products, Printed Circuit board, PCB assembly, electronics assembly manufacturing, Electronic parts components sourcing services for your new products development.
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1. PCB Fabrication China Discusses Green Technologies in
PCB Fabrication
Posted on Thursday, July 03, 2014
http://www.sbwire.com/press-releases/pcb-fabrication-china-discusses-green-technologies-in-pcb-fabrication-526527.htm
Shenzhen City, China -- (SBWIRE) -- 07/03/2014 -- “Green― and “environmentally friendly― are ill-defined terms. I
these terms refer to manufacturing that involves the replacement of toxic substances with less toxic materials, the
elimination of materials or processing steps, and less consumption of chemicals (i.e., more efficient or higher yield
processing, reduction of water use, reduction of energy use, less space requirement, smaller equipment foot print, and
recycling and on-site recovery of materials).
Direct Metallization
This family of processes eliminates the electroless copper process. These processes typically have fewer process steps, use
less rinse water, have less floor space requirement, and use less toxic chemicals. Direct metallization processes include:
Palladium-based
These processes pretty much follow the classic electroless copper processing step sequence, except the sequence ends with
the application of the palladium catalyst, followed by the activation, then skips the electroless bath and proceeds to copper
electro-plating.
Carbon or Graphite-based
Using small carbon or graphite particles to render the dielectric hole-wall electro-platable, this process involves very few
steps.
Conductive Polymer-based
The process of using a non-conductive monomer to coat the board surface follows an oxidation step that forms a conductive
polymer from the non-conductive monomer. The polymer then facilitates copper electro-plating on the non-conductive
dielectric hole wall. An example of such a conductive polymer formation is the oxidation of pyrrole to poly-pyrrole, using
permanganate as the oxidation agent. The permanganate is reduced to manganese dioxide, which is insoluble and needs to
be further reduced to the soluble manganese Mn2+ ion. Another example is the polymerization of “EDOT― (3,4-
ethylenedioxy-thiophene) to poly-EDOT
About PCB Manufacturing China
DaShunChang Electronic is a quality oriented PCB manufacturer with 15 year’s experience. Our main products are single
side PCB,double side PCB, multi-layer PCB as well as FPC, Aluminum PCB, High Frequency PCB and Heavy Copper
PCB. Our products are mainly used in areas such as industrial control, medical equipment, automobile electronics,
telecommunication, security products and consumer electronics. You will feel confident of our Printed Circuit Boards every
time. We believe that with our solid Rigid PCB and Flexible PCB, plus competitive price will make us your first choice.
Visit http://www.dsc-pcb.com/about.php for more details.