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[43 matching items]
Electronic Parts
The electronic parts include key switches and caps. The life under nominal current and...

Min. Order: 2000 ps(s)
Delivery Lead Time: 3 - 4 week(s)

Remove from basket Smart Advance Int'l Ltd


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[19 matching items]
Electronic Parts
The featured items are electronic parts which are used in audio products like speakers....

Remove from basket Daeyoung Electric Co., Ltd.


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[6 matching items]
Electronic Parts
The featured items are components for electronics industrial use. They come in grey triangular...

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[2 matching items]
Electronic Parts
These electronic parts are power management circuits and field effect transistors There...

Remove from basket Guangdong Kexin Industrial Co., Ltd.

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[4 matching items]
Electronic Parts
The featured items are electronics parts which include high recovery rectifiers, mosfets...

Remove from basket Shenzhen Angel Automatic Technology...

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A good electronics manufacturer tailors the reliability of his processes and assemblies to suit his customer base. AirBorn Electronics designs and manufactures Printed Circuit board assemblies to a standard compatible with professional quality equipment. Many of our customers sell expensive niche market equipment. They really do not want to have a breakdown caused by a manufacturers decision to use an economical 10c IC socket in place of a more reliable 50c part. We have other clients who sell into higher volume commodity-product markets, and different design rules apply to their work due to the economies of scale.

Our assemblies are designed to be maintainable, repairable, durable and easily installed. The difference between a printed circuit board that is easy to work with and a PCB which bedevils technicians can be as simple as proper labelling, connectors and sockets. At AirBorn Electronics we have developed some maxims which we try to work by -

AirBorn Electronics manufactures products to a professional equipment standard:
IC Sockets are gold plated (DIP type are Gas tight machine screw construction with 4 prong gold plated mating surfaces)
Data connectors have Gold plated mating surfaces
PCB Laminates are professionally manufactured using Fibreglass FR4 stock, soldermask over bare copper (top & bottom), PTH, solderable finish, and silkscreen encoded with a full component identification legend.
All connectors are polarised, with numbering clearly marked.
All interboard cabling is stranded. All light wire is tinned stranded.
Components subject to lowered MTBF due to external adverse factors (e.g. line drivers) are socketed.
All socketed components are identified, with orientation shown.
All parts used are first grade, new, manufacturers product meeting the full manufacturers specification.
All non-substitutable-at-repair components are clearly marked.
All parts & PCBs have been processed under anti-static conditions.
Quality is not goodness. -- Sandia National Labs document
It is surprising how many standards accredited Manufacturers produce atleast some equipment that complies only with items (8) and (10) - this is because quality of manufacturing starts with the design, if the design did not include (for example) polarised connectors, IS09000 manufacturing certainly could not add this. Standards (a bit of a rant)
Its all very well to have an ISO9000 Manufacturer produce your boards, but if the design is not up to scratch the end result may well be faithfully reproduced ISO9000 compliant junk. Standards rarely specify quality of design - indeed, when they try to do this they usually create such a rigid inflexible environment that nothing useful gets produced. Even with our "top ten" criteria above, there will be projects where the best design choice involves breaking one of the rules. It is fantastic to have a strong standards base for your products and designs, but by and of itself it is not the whole answer.
Your most important resource in technical manufacturing are your People and your systems, and standards really seem to fit in to that mix as "codified systems."
By extending the engineering design into the specification of the manufacturing operation, AirBorn Electronics can increase the quality of the final product. By being available to respond to the changing engineering requirements that arise from time to time in manufacturing, we can help ensure the highest quality final product in the longer term.

Communicating manufacturing information is a critical issue. We now generate all manufacturing documents (Gerbers and BOM in particular) in house rather than forwarding CAD files. We have a standard method for transferring "miscellaneous notes" to third party manufacturers, we put the notes in the Printed circuit board
From Wikipedia, the free encyclopedia
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Part of a 1983 Sinclair ZX Spectrum computer board; a populated PCB, showing the conductive traces, vias (the through-hole paths to the other surface), and some mounted electrical componentsA printed circuit board, or PCB, is used to mechanically support and electrically connect electronic components using conductive pathways, tracks or signal traces etched from copper sheets laminated onto a non-conductive substrate. It is also referred to as printed wiring board (PWB) or etched wiring board. A PCB populated with electronic components is a printed circuit assembly (PCA), also known as a printed circuit board assembly (PCBA).

PCBs are inexpensive, and can be highly reliable. They require much more layout effort and higher initial cost than either wire-wrapped or point-to-point constructed circuits, but are much cheaper and faster for high-volume production. Much of the electronics industry's PCB design, assembly, and quality control needs are set by standards that are published by the IPC organization.

Contents [hide]
1 History
2 Manufacturing
2.1 Materials
2.2 Patterning (etching)
2.3 Lamination
2.4 Drilling
2.5 Exposed conductor plating and coating
2.6 Solder resist
2.7 Screen printing
2.8 Test
2.9 Printed circuit assembly
2.10 Protection and packaging
3 Design
4 Safety certification (US)
5 "Cordwood" construction
6 Multiwire boards
7 Surface-mount technology
8 See also
9 References
10 External links
10.1 Design guidelines
10.2 Standards and specifications
10.3 Do-it-yourself (DIY) guides
10.4 Others

[edit] History
The inventor of the printed circuit was the Austrian engineer Paul Eisler (1907–1995) who, while working in England, made one circa 1936 as part of a radio set. Around 1943 the USA began to use the technology on a large scale to make rugged radios for use in World War II. After the war, in 1948, the USA released the invention for commercial use. Printed circuits did not become commonplace in consumer electronics until the mid-1950s, after the Auto-Sembly process was developed by the United States Army.

Before printed circuits (and for a while after their invention), point-to-point construction was used. For prototypes, or small production runs, wire wrap or turret board can be more efficient. Predating the printed circuit invention, and similar in spirit, was John Sargrove's 1936-1947 Electronic Circuit Making Equipment (ECME) which sprayed metal onto a Bakelite plastic board. The ECME could produce 3 radios per minute.

During World War II, the development of the anti-aircraft proximity fuse required an electronic circuit that could withstand being fired from a gun, and could be produced in quantity. The Centralab Division of Globe Union submitted a proposal which met the requirements: a ceramic plate would be screenprinted with metallic paint for conductors and carbon material for resistors, with ceramic disc capacitors and subminiature vacuum tubes soldered in place.[1]PCB Assembly and Production Process
- an overview of the PCB assembly process involved in building a surface mount technology (SMT) board using pick and place techniques.

Within a printed circuit board electronics assembly / production or manufacturing process there are a number of individual stages. However it is necessary for them all to work together to form an integrated overall process. Each stage of assembly and production must be compatible with the next, and there must be feedback from the output to the input to ensure that the highest quality is maintained. In this way any problems are detected quickly and the process can be adjusted accordingly.

PCB assembly process overview
The various stages in the PCB assembly process including adding solder paste to the board, pick and place of the components, soldering, inspection and test. All these processes are required, and need to be monitored to ensure that product of the highest quality is produced. The PCB assembly process described below assumes that surface mount components are being used as virtually all PCB assembly these days uses surface mount technology.

Solder paste: Prior to the addition of the components to a board, solder paste needs to be added to those areas of the board where solder is required. Typically these areas are the component pads. This is achieved using a solder screen.

The solder paste is a paste of small grains of solder mixed with flux. This can be deposited into place in a process that is very similar to some printing processes.Rene Panhard and Emile Levassor
Rene Panhard and Emile Levassor were partners in a woodworking machinery business, when they decided to become car manufacturers. They built their first car in 1890 using a Daimler engine. Edouard Sarazin, who held the license rights to the Daimler patent for France, commissioned the team. (Licensing a patent means that you pay a fee and then you have the right to build and use someone's invention for profit - in this case Sarazin had the right to build and sell Daimler engines in France.) The partners not only manufactured cars, they made improvements to the automotive body design.

Panhard-Levassor made vehicles with a pedal-operated clutch, a chain transmission leading to a change-speed gearbox, and a front radiator. Levassor was the first designer to move the engine to the front of the car and use a rear-wheel drive layout. This design was known as the Systeme Panhard and quickly became the standard for all cars because it gave a better balance and improved steering. Panhard and Levassor are also credited with the invention of the modern transmission - installed in their 1895 Panhard.

Panhard and Levassor also shared the licensing rights to Daimler motors with Armand Peugot. A Peugot car went on to win the first car race held in France, which gained Peugot publicity and boosted car sales. Ironically, the "Paris to Marseille" race of 1897 resulted in a fatal auto accident, killing Emile Levassor. (Learn more about Panhard

Using the solder screen, placed directly onto the board and registered in the correct position , a runner is moved across the screen squeezing a small mount of solder paste through the holes in the screen and onto the board. As the solder screen has been generated from the printed circuit board files, it has holes on the positions of the solder pads, and in this way solder is deposited only on the solder pads.

The amount of solder that is deposited must be controlled to ensure the resulting joints have the right amount of solder.
Pick and place: During this part of the assembly process, the board with the added solder paste is then passed into the pick and place process. Here a machine loaded with reels of components picks the components from the reels or other dispensers and places them onto the correct position on the board.

The components placed onto the board are held in place by the tension of the solder paste. This is sufficient to keep them in place provided that the board is not jolted.

In some assembly processes, the pick and place machines add small dots of glue to secure the components to the board. However this is normally done only if the board is to be wave soldered. The disadvantage of the process is that any repair is made far more difficult by the presence of the glue, although some glues are designed to degrade during the soldering process.

Originally, every electronic component had wire leads, and the PCB had holes drilled for each wire of each component. The components' leads were then passed through the holes and soldered to the PCB trace. This method of assembly is called through-hole construction. In 1949, Moe Abramson and Stanislaus F. Danko of the United States Army Signal Corps developed the Auto-Sembly process in which component leads were inserted into a copper foil interconnection pattern and dip soldered. With the development of board lamination and etching techniques, this concept evolved into the standard printed circuit board fabrication process in use today. Soldering could be done automatically by passing the board over a ripple, or wave, of molten solder in a wave-soldering machine. However, the wires and holes are wasteful since drilling holes is expensive and the protruding wires are merely cut off.

In recent years, the use of surface mount parts has gained popularity as the demand for smaller electronics packaging and greater functionality has grown.

...and 99 more like this
BOM either alongside the parts affected or as a note applying to the whole printed circuit board. The (realistic) rationale is that all subcontract assemblers have to reference the parts list to produce the board.

Previously (as soon as 5 years past) we relied on either marking up the board overlay (as pictured) or communicating the requirements directly to the manufacturer. However, as we have been told, english may not be the first language of many assembly staff. And communicating requirements ourselves is not always practical when the client deals directly with the manufacturer; so our system has adapted.

Most electronics manufacturers have converted their stocks of parts to Sn (Tin) finish parts that are Lead free and ROHS compliant. However, it is still the customers option to choose ROHS compliant production or to allow tin/lead solder and board finishes. The tin/lead solder and board finishes are required for most defence projects and are allowed for legacy production. There is a slight cost reduction in producing tin/lead finish PCB laminates. ROHS compliance must start at the design stage of your project with selection of ROHS compliant parts. This is not difficult and so we produce every design as ROHS compliant without being asked. If the client wants ROHS compliant production, they need to request it, but the design is ROHS compliant by default.

[17 matching items]
Plastic Parts For Satellite Receiver - Front panel
Mould design: as per customer product design and requirements. Cavity & core steel: H13(1.2344),...

Remove from basket Acetop Ind'l Ltd




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Chat with Supplier Electronic Manufacturing Services Overview

Utilizing production facilities around the world, STACI Corporation is proud to offer its customers complete, customized Electronic Manufacturing Services (EMS) to meet a wide range of manufacturing needs, including everything from low volume prototyping to high volume production. STACI specializes in offering its state-of-the-art EMS for a variety of industry-wide applications in the Automotive, Telecom, Computer and Consumer Electronics industries.

STACI can provide customers with everything from basic Printed Circuit Board Assembly (PCBA) services up to complete turnkey box-build services, including final testing and retail packaging. Utilizing production facilities in the United States and Asia, STACI can work with customers to service them from the optimal location depending upon the customer’s need for turn-around time, volume and proximity.

STACI can also work with customers to cost-reduce the Bill of Material by:

Utilizing STACI’s Electro-Mechanical component partner factories located in low-cost countries to provide plastic, metal, cable and other products.
Utilize STACI’s Sourcing and Procurement resources located in low cost countries to search out cost-effective alternate products

STACI’s production facilities and those of its partners are well equipped, featuring advanced production equipment including:

SMT equipment from Siemens, Sanyo, Juki, I.Pulse and Fuji
Reflow Ovens from Heller, Tamura and Sanyo
Chip on Board (COB) equipment from ASM
AI Equipment from Panasert
X-ray Equipment

BGA Rework Station

EMS Capabilities

Regardless of a customer’s needs or timeline, STACI stands ready to provide a wealth of cost-effective electronic manufacturing solutions, utilizing the following capabilities and specifications:

Manual and automated insertion assembly
High speed surface mount placement equipment
Wire die bonding
Open book quoting
Shared cost reduction initiatives
Inventory control
Electro-mechanical parts sourcing and production – metal, rubber and plastics and more
Extensive RoHS (Pb-free) Compliant services
Complete range of services from Printed Circuit Board Assembly to turnkey box-build
Factories are ISO9000 certified and some are QS9000 certified.

Our Certification

ISO9001:2008
ISO14001: 2004
BS - OHSAS18001: 2007
TS16949

Reasons to Choose STACI’s Electronic Manufacturing Services

Wide range of manufacturing and testing facilities
A highly skilled workforce
Cost-effective, high quality products built to your specifications
Around-the-clock engineering support
Dock-to-dock delivery
Just-in-time delivery using local and/or regional warehouses
We monitor our On-Time Delivery rate for all product and are committed to improving our performance over time. Below is a chart that shows the On-time Delivery Rates for the most recent quarters for all our EMS shipments.

[21 matching items]
Complex Multi-Layer Circuit Board
This printed circuit board complies of multi-layers.The side contact design comes with...

Min. Order: 1,000 pc(s)
Delivery Lead Time: 4 week(s)

Remove from basket Introlines Ind'l (HK) Ltd




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