|pcb production manufacturing shenzhen,CN china,Low
cost high quality print circuit PCB manufacturer
pcb production,electronics printed circuit board mass production,PCBA
production,Low cost shenzhen,CN china
Printed Circuit Board (PCB) Production
PCB production, prototyping and component placement
Since we do a lot of R&D and small-scale production in
the house, we established a small facility for PCB prototype
and small-scale production runs.
A single PCB can be milled with our milling machine quickly
and accurately. It lacks stop lack (see picture) and silk
print, but it is fast and cheap. And perfect for testing RF
circuits, prototyping and other design work. Single or double-sided
boards with 8-mil traces 0603 can be placed with ease. Our
prices are very competitive and it makes perfect sense starting
at around 50-100 boards (the problem is stencil mask which
can come out a bit expensive per board, if there are not that
many of them). Lead-free wave soldering and SMD owens are
CAD/CAM PCB design/routing
To round it off we also offer CAD/CAM PCB design, although
we are only doing it for smaller boards for the time being
as there is usually no time due to other project. If you need
this service please check with us first
The production of a printed circuit board (PCB) begins the
design of the board layout on a Computer Aided Drafting (CAD)
package. Once complete, a plot is made of the desired layout
in which areas of copper on the final board are represented
in black ink while areas to be void of copper are represented
by white paper. This hardcopy is two times larger than the
final board (2:1) to give better resolution on the final product.
The plot is photographed with a copy camera which reduces
the image to it's final 1:1 size.
A 1:1 negative is made from the photographed plot. The negative
is made by using Litho film in the camera. This type of film
produces images that are very high contrast: black and white
areas only with no grey. When developed, the image on the
negative has clear areas where the original plot was black
and black areas where the original plot was white.
Exposing The Board
Photosensitized PCB is placed on top of the negative and UV
light shines through the negative to expose it. Clear areas
on the negative allow the UV light to pass through and expose
the board while black areas of the negative prevent those
corresponding areas of the PCB from being exposed to the light
Developing The Board
The PCB itself is developed in a chemical solution. Areas
of the PCB exposed to the UV light (through the negative)
are turned into a plastic film. On areas not exposed to light
the film is dissolved away to reveal bare copper beneath.
This leaves traces of protective film over areas of the copper
which will later become the traces on the board. Exposure
and development of the board is done under yellow light to
protect the sensitive board from being ruined by exposure
to undesired light.
Etching The Board
The board itself is etched in a bath of heated Sodium Persulphate
solution. Here, exposed copper is dissolved while copper protected
by the plastic film is kept intact. The photo on the right
shows a board partially etched in which the fibreglass board
behind the copper is visible.
Finishing The Process
The plastic film covering the traces is now strippeed away
to reveal shiny copper traces. Copper in the areas between
the traces has been etched away to the non-conductive fibreglass
Exposed copper on the stripped board is now plated with
tin to protect it from oxidation.
A view of the completed PCB, ready for drilling and mounting
of components. PCB Design
Military and Aerospace PCB Design
PCB Design for Assembly
PCB Design for Assembly Checklist
PCB Design for Test
Request a Quote
Material Management PCB Design for Assembly (DFA)
Printed Circuit Board Design for Assembly (DFA) is critical
to OEMs who outsource PCBs for design and manufacturing. If
correctly performed, it shortens the product cycle, minimizes
development cost, and ensures a smooth transition into production
from prototype stages. Unfortunately, an OEM product engineering
team often accelerates design and development cycles and fails
to place emphasis on high volume production considerations
such as fixtures, casting, or extrusions, for example. In
cases like these, PCB prototype engineers intend to quickly
get the product on a test bench, to do proof of concept validation
rather than emphasizing Design for Assembly (DFA) considerations.
The prudent approach is to first examine the volume production
considerations. The main reason is there are different DFA
considerations related to prototype PCB assembly versus production
PCB assembly. Each requires a different design skill set and
Author(s): V.M. Evzhenko, A.G. Chebotarevsky
Journal: Circuit World
Page: 5 - 7
Publisher: MCB UP Ltd
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Abstract: An analysis is given of the present situation regarding
PCB production in six independent states of the former USSR.
The distinctive characteristics of the PCB industry under
the command-administrative system which existed until 1991
are outlined. Production capacities of PCB manufacturers and
production volumes for 1989–1993 are analysed. An important
feature of the market is PCB complexity. The fact that the
majority of companies are equipped with domestically produced
machinery creates drawbacks. The paper concludes with some
proposals for action to increase the efficiency and competitiveness
of printed circuit board production in the western part of
the former USSR. Inkjet PCB Production Project
FY2003-FY2005; FY2004 Project Budget: 410 million yen
Existing printed circuit boards (PCB) have a multi-layer construction
in which four to six layers of metallic wiring with a trace
width of about 50 屘m are stacked along with electronic components
such as resistors, condensers and input/output terminals.
To achieve even finer patterning and higher-density integration,
the production cost would have to dramatically increase.
As a solution to this problem, a new system for PCB production
is being developed using the inkjet technique. This can simplify
the processes required and reduce consumption of materials
and energy. Such low-cost, energy-saving multi-layer PCB production
technology is also suited to flexible manufacturing, and should
lead to finer patterning and higher-density integration.
Specifically, we will develop inkjet printing technology that
can produce very fine patterns quickly and steadily as well
as a complete PCB production system using inkjet printing.
LONDON — Electronics manufacturer Exception Group Ltd. has
announced a ￡400,000 investment in new manufacturing technology
for its printed circuit (pc) board production facility in
Tewkesbury, England. The company has recently taken delivery
of a Pola & Massa automated planariser, which is used
to reduce excess copper and resin from high density interconnect
(HDI) and multilayer high aspect ratio products.
Exception has also invested in an ATG A5 flying probe soft
touch test platform. The high-speed system uses 8 fine pitch
probes for the electrical testing of prototypes and complex
HDI adopted technology, with the ability to test pad features
down to 50 micron with zero witness marks, a critical factor
in micro BGA and flip chip applications, where the wire bond
process is next in the supply chain.
In addition to the planariser and soft touch test platform,
Exception has recently introduced a metallisation line to
provide an enhanced HDI manufacturing capability, similar
to that seen in the fabrication of IC substrates. The facility
complements Exception’s current SAP (semi additive process)
throughout the company’s wet cells, delivering improved fine
line resolution and yield beyond 50 microns Polychlorinated
PCBs Related Links
PCBs & Chemistry
PCBs & Environment
PCBs & Human Health
PCBs, or polychlorinated biphenyls, are a group of chemicals
consisting of 209 individual compounds. PCBs were widely used
as a fire preventive and insulator in the manufacture of transformers
capacitors because of their ability to withstand exceptionally
high temperatures. Concern over the toxicity and persistence
in the environment of PCBs led Congress in 1976 to enact the
Toxic Substances Control Act (TSCA) that included, among other
things, prohibitions on the manufacture, processing, and distribution
in commerce of PCBs.
PCBs have been demonstrated to cause a variety of adverse
health effects. PCBs have been shown to cause cancer in animals.
PCBs have also been shown to cause a number of serious non-cancer
health effects in animals, including effects on the immune
system, reproductive system, nervous system, endocrine system
and other health effects. Studies in humans provide supportive
evidence for potential carcinogenic and non-carcinogenic effects
PCBs build up (bioaccumulate) in the environment, increasing
in concentration as you move up the food chain. This is of
special concern in areas where fish are exposed to PCB contamination
and may be consumed by humans (as in the Hudson River). At
the Hudson River PCBs site, the best way humans can reduce
their risk of exposure to PCBs is by following the New York
State Department of Health advisories for consumption of fish
from the river.
Packaging & Interconnect
Pick & Place
Market Trends, PCB Production - 30 Jul 2008
Innovative demands from various end-user verticals including
telecommunications, automotive, aerospace and defense, medical,
and industrial packaging expect to fuel robust growth in the
Orbotech Announces "First Ever" Automated Optical
Repair System for Bare Printed Circuit Board Manufacturing
News, PCB Production - 03 Jul 2008
Orbotech Ltd announced the worldwide introduction of its new
PerFix Automated Optical Repair (AOR) system for shorts and
excess copper. According to the company, this is the first
of its kind in the b...
Mentor Graphics Publishes New Technology Book On BGA Routing
News, PCB Production - 01 Jul 2008
Mentor Graphics Corporation announced the publication of a
new book written by Charles Pfeil, Engineering Director of
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Routing, Effective De...
Ruwel Acquires NCS in India
PCB Production - 27 Jun 2008
Ruwel GmbH, said to be Germany's biggest producer of printed
circuit boards for the world's electronics industry, has announced
that it has taken over 80 percent of the shares in Naavinya
CAD Soft Ltd...
PD Circuits Updates Web Site
PCB Production - 27 Jun 2008
PD Circuits Inc, specializing in delivering the PCBs, technical
support, and service to OEM and EMS companies worldwide, announces
that it recently updated its Web site to make it more informative
DuPont Electronic Technologies Announces Global Price Increase
News, PCB Production - 26 Jun 2008
DuPont Electronic Technologies has announced a global price
increase of up to 20 percent, effective June 16, 2008. The
company cites rising raw material, transportation and energy
costs among its reas...
PD Circuits Expands China Operations
News, PCB Production - 24 Jun 2008
PD Circuits Inc announced that it has completed Phase 2 of
the development of its China PWB Supply Chain operations.
In its second year of its China expansion program, the company
said it has doubled ...
Rohm and Haas Announces a Comprehensive Set of Actions to
News, PCB Production - 18 Jun 2008
Rohm and Haas Company has announced a comprehensive set of
actions to restore profitability and ensure the achievement
of its Vision 2010 goals by realigning its manufacturing footprint
and support se...
Ibiden to Invest RM1 Billion on Second Malaysian PCB Facility
PCB Production - 21 May 2008
Ibiden Co Ltd announced that it plans to set up its second
PCB manufacturing facility in Malaysia to complement its existing
plant in Beijing, China. In a statement in Kuala Lumpur to
The New Straits ... Our products
Coaxial cable and connectors
SWR and POWER meters
Rack cabinets and boxes
Replacement 2000mW final transistor
Our Radio Guides
How To Start Guide
Frequently Asked Questions
About PCS Electronics
Shipping & Returns
Frequently asked questions
Well, you can be safe in the knowledge that at ABL Circuits
you will be dealt with in a friendly and highly professional
manner and with all your requirements logged onto our sophisticated
computer system. You will get exactly what you asked for on
time, every time .. So you can plan your production time accurately.
You can benefit from our 18 step PCB production process including
inspecting your photography to CNC drilling your printed circuit
boards. From etching the copper to photo-image resist.
You will receive your single or plated through printed circuit
boards within 5 working days as standard ..
.. and your multi layered circuit boards within some of the
best turnaround times within the PCB Industry. You can even
choose our 8 hour prototype service if there's a particular
project you need urgently.
What is more, your printed circuit board will receive seven
different inspections as they progress through the PCB production
process. Ensuring that every one of your printed circuit boards
reaches you in perfect condition. We aim to be your choice
for a UK PCB manufacturer.
You can request our brochure online on our web site. Or,
if you prefer simply call us on 01462 894312 and we'll put
our brochure in the post for you.
As always, your feedback is very important to the success
of this site and our business. Your thoughts and comments
would be greatly appreciated.Manufacturing of Original PCB
I will introduce about the making of the Printed Circuit Board(PCB)
which I use when I assemble the electronic circuits from this
About the Printed Circuit Board
Implement of the Printed Circuit Board making
Process of the Printed Circuit Board making
Making of the Double sided printed board
Cool-Amp silver plating
CAD software EAGLE
The circuit board when I assemble the electronic circuits
is generally using the one which is called "The universal
As for the reason, the circuit to make is because it makes
Generally, I don't make many sheet of the printed boards with
the same pattern.
Also, when changing the circuit after the operation confirmation
of the circuit, the universal circuit board is convenient.
However, when trying to make all electronic circuitses with
the universal circuit board, there is a limit.
The case where had better make the Printed Circuit Board is
The circuit which handles the high frequency
In case of the circuit which handles the high frequency (the
MHz order), the length of the wiring, the way of letting through
the wiring have an influence on the circuit operation. Because
it is, it is necessary to investigate the length of the wiring,
the distance with the other circuit.
When doing the high density assembly
In case of the universal circuit board, the hole to mount
the part becomes the 0.1-inch interval.
Because it is, in the case which mounts with the part in the
interval below it, the Printed Circuit Board must be made.
When the lead line of the part is not the 0.1-inch interval
For example, in case of the transformer for the high frequency,
the lead line of the shielding case is not the 0.1-inch interval
to the lead line of the coil.
Because it is, when mounting such a coil on the universal
circuit board, a hole for the lead line of the shielding case
must be made in the circuit board.
Or, it makes turn the 45° and it mounts.Products ? Project
Design and Development Services ? PCB Production
Contact us for pricing
QuickFind Code: QF378
Category: Project Design and Development Services
Crownhill can handle your PCB layout and schematic capture
requirements. With a commitment to high quality and reasonable
pricing you receive your completed design on time and within
budget. We handle both new designs as well as updating existing
boards. Designs may be either a netlist or a hand drawing.
All sizes and complexities of designs are welcomed. Multi-layer
PCB's, split planes, surface mount (SMT) and through hole
are standard. In addition to hand routing of critical signals
we use industry standard PCB layout and schematic capture
tools to bring your design to reality, in accordance with
your specifications. Netlists and existing PCB's created from
various tools are supported. You receive check plots, Gerber
files (RS274X format), drill file(s), fabrication drawings,
assembly drawings and if applicable, schematics and parts
To provide a quotation we will require: turnaround, or while
you wait ( by proir arrnagement). We can also provide multi
layer boards upto 12 layers. On single or double sided boards
and some four layer boards, CAM files received before 9am
by email and paid for by credit card can be despatched as
finished PCBs for delivery overnight to any destination on
the UK mainland.
For our fast 24hr or "special" while you wait service
the following rules apply:
￡30.00 for 10sq cm Single sided no PTH rising to
￡40.00 for 10sq cm Double sided with PTH, larger sizes pro-rata,
send design files for a quotation
Circuits supplied can be 1 or 2 layer 0.8 or 1.6 mm Fr4 with
Plated Through Holes.
Finished in bare copper tracks and pads on both sides.
Minimum track and gap 0.2 mm
Holes can be PTH or NON PTH, as defined in your gerber files
or by your written description.
Only top and bottom copper layer files, excellon CNC drill
files, and a profile layer file will be used. All other files
will be ignored.
Profiles will be cut with a 2.00 mm or 1.00 mm diameter router
as a simple single pass
Profiles must be drawn with a single continuous line, the
inside or outside can be used as the cutting line, you must
specify which. (default is cutting outside).
Internal cut-outs, circles and slots are permissable, please
notify us of these or unusual board profiles (Stars or polygon
Panelisation and step & repeating is allowed
Please include "readme" files & design notes
to aide manufacture
Legends in copper are permissable
Note: For this service
No solder resists
No alterations, editing, or additional instructions regarding
the circuits may be made after webeing work on your order
No design rule checking is performed by us
Electrical test is not included
No scoring or tabs, unless discussed with us and agreed in
advance, your design notes must be acceptable to us.
No gold or other finishes
Minimum CNC drill size is 0.30mm, maximum CNC drill size is
1.5 mm, larger holes are routed
Data must be received by 9am on a working day and we will
ship by close of business the same day or following working
day, to be agreed when payment is received.
Please check your files with GC-Prevue before submitting
them to us.
The maximum number of circuits available is 2 depending on
the size of the circuits, but ask us to quote.
Overnight shipping is ￡10.00 within the UK. Please enquire
regarding overseas shipping costs.