Guidelines For Subcontracting PCB Assembly And Small Volume Prototype Manufacturing

Purchasing costly production equipment isn'tfind that the quotation will change based on the
feasible if you simply want to run the PCBlead time when you input your data in the instant
assembly of several prototypes. Instead youquote section.
probably want to outsource the prototypeBe certain that you can provide the file formats
assembly to a dependable contract manufacturer.that your supplier requires. The most common
I will provide some tips as to what to watch outformat is the Gerber format for PCB production.
for when seeking a contract manufacturer.A few companies will also be capable to read
Many contract manufacturers will offer andesign software-specific file formats. If you
immediate quotation mechanism on their websitechoose a vendor which also offers circuit board
for manufacture of circuit boards and assemblydesign services then you can rest assured that
of prototypes. This will save you time whenthere won't be any extensive delays in case your
evaluating different vendors. This quote systemboard files have a problem that needs to be
should let you to enter all of the boardcorrected.
information. Such details include board thickness,Ensure that your vendor can handle the package
material and any special manufacturingtype of each component on your board if you
requirements including milling. This will help youplan on subcontracting the PCB assembly. You
avoid any surprises in case of surcharges forshould find a list of which types of components
special manufacturing requirements.your vendor can assemble online. Some vendors
Frequently the cost per board will decrease asmay not be capable to assemble special BGA or
volume increases. This is a result of the relativelychip-scale packages. Get in touch with your
high setup expense of circuit board making andvendor if you have questions about what kind of
component assembly. Several prototypecomponents can be assembled. That will avoid
manufacturers will combine boards fromproblems later on.
numerous customers to help distribute the setupA number of manufacturers will have inventory
cost and lower the cost per board for smallof commonly used components which you can pull
volumes. In the design stage of your product, youfrom as opposed to purchasing each component
may want to start out with a smaller volume ofyourself. If you pull stock from your supplier, you
boards initially. After that you can work out thehave to include in your BOM information on which
issues with your design. Finally you will be able toparts you are consigning yourself. Then send your
increase the build volumeBOM with that data to your supplier.
One limitation with small-quantity prototypes still isMost manufacturers will also offer manufacture of
that the choice of materials and materialthe SMT stencil which is needed for PCB
thicknesses will be restricted. If you are utilizing aassembly. Be sure to buy the stencil immediately
special material then chances are there won't bewhen buying the circuit boards themselves to
any other customers utilizing the same material.avoid delays.
Most vendors will charge differently depending onTo ensure quality, be sure that your supplier
how quick you want them to complete thecarries the usual quality approvals. Also, if your
manufacture. A longer lead time will afford theboard requires particular testing, be sure your
vendor more freedom to slot the assembly.vendor has suitable testing equipment. Some
Moreover, they can more easily combine yourtesting will require extra time and cost.
order with other customer's orders. You should