Turnkey service of PCB design+fabrication+assembly+component procurement+delivery. 2-32 layers PCB 3 SMT production lines 10000 m2 workplace, over 10 years experience. Hope to establish business cooperation with you. lillian yang OurPCB Tech. Ltd 008615511345900 lillian.yang@circuitspcb.com

1. OurPCB Tech. LTD
Add: 3rd Floor, Nanhai Plaza, NO. 505 Xinhua Road, Shijiazhuang, Hebei, China. 050057
Contact: Lillian Yang E: Lillian.yang@circuitspcb.com M: 0086-15511345900 SKYPE: yang.lillian10
PCB Assembly steps in Mass Production
PCB Assembly steps in Mass Production
Specialized in PCB Assembly for over 10 years, OurPCB is equipped with
many advanced machineries, including three high speed SMT lines, Siemens
HS50 Pick and placers, Siemens F5 pick and placers, Heller 1809 Reflows,
Speedline MPM printers, OK intelligent solder irons, Otek Automatic
Optical Inspection and many other advanced machineries. We assemble
BGA, LGA, QFN, QFP, DIP, SIP.., the smallest SMT footprint we can
mount is 0201. Our factory can also provide programming, wiring as well as
injecting and conformal coating services.
You can find some important PCB assembly steps below.
1. pcb SMD Assembly
Surface mount devices are miniaturized components that are placed directly
mounted on the printed circuit board and get soldered on the same side.
Before any placement, solder paste is applied to board with respect to
pads/connection through stencils. SMD assembly is mostly automated for
mass production of PCB Assembly. Common automatic SMT placement
machines can place thousands of components per hour, making this part of
the assembly highly automated and fast. SMD assembly is an important part
in PCB assembly step.

2. OurPCB Tech. LTD
Add: 3rd Floor, Nanhai Plaza, NO. 505 Xinhua Road, Shijiazhuang, Hebei, China. 050057
Contact: Lillian Yang E: Lillian.yang@circuitspcb.com M: 0086-15511345900 SKYPE: yang.lillian10
After SMD components are placed on PCB, it is directed to the reflow oven
in order to mechanically bond the SMD terminal with plated copper of PCB,
resulting in firm electrical and mechanical connection. After SMD assembly,
inspection of board is performed to rectify any problem.
2. pcb Through-Hole Assembly
Through-Hole Assembly is also very important PCB Assembly step. Larger
components in through-hole packages are manually placed on PCB.
Directional components like capacitors and LEDs are taken proper care in
placement and visual/ camera inspection is performed. After inspection,
components are soldered to the PCB through wave soldering in automated
process or manual soldering in non-automated process.

3. OurPCB Tech. LTD
Add: 3rd Floor, Nanhai Plaza, NO. 505 Xinhua Road, Shijiazhuang, Hebei, China. 050057
Contact: Lillian Yang E: Lillian.yang@circuitspcb.com M: 0086-15511345900 SKYPE: yang.lillian10
3. Testing, Cleaning and Coating
Fully assembled board is tested, usually through bed-of-nail tester or
flying-probe-tester in order to confirm the functionality of components.
After this stage, board is cleaned (usually ultrasonic cleaner) to remove any
reside of flux or soldering and then conformal coating is applied to protect
the board form any contamination.
Now, assembled board is ready to be shipped/ placed inside the product. A
typical fully assembled board is shown in the figure 1 below.
for more posts, pls visit http://www.ourpcb.com/
in needs of PCB or PCB Assembly Services, feel free to

4. OurPCB Tech. LTD
Add: 3rd Floor, Nanhai Plaza, NO. 505 Xinhua Road, Shijiazhuang, Hebei, China. 050057
Contact: Lillian Yang E: Lillian.yang@circuitspcb.com M: 0086-15511345900 SKYPE: yang.lillian10
contact me here,we will try our best to help.
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