When outsourcing the assembly of PCBs, make sure that your supplier can assemble all the types of package used by your board. Some manufacturers can not mount particular types of IC packets such as BGA, chip scale packs, or very small component types. If in doubt, be sure to send an email to your supplier in advance.
One limitation with small quantity prototypes is still that the variety of materials and material thicknesses will be limited. If you are using a special material, chances are that there will be no other customers using the same material. In addition, lead time plays a large role in cost decision making. A longer lead time allows the manufacturer to have more freedom to split their output. You should note that the quote will vary depending on the lead time when you enter your information in the instant quotation section.
Make sure you can provide the file formats your vendor needs. The most common format is the Gerber format for PCB production. Some companies may also be able to read file formats specific to design software. Several vendors also offer internal PCB design. Even if you design your frame yourself, selecting a supplier with design services can be valuable if there is a problem with your files. In this case, your supplier can make quick modifications that avoid costly delays.
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