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4 ways to improve PCBA production efficiency

4 ways to improve PCBA production efficiency
1. Keep component changes to a minimum

When specifying the bill of materials (BOM), it is not uncommon to find that the design engineer has listed several similar components in the same pcb board reference. Although this selection element may be provided with the best intentions, it may be a challenge because the size and shape of parts provided by different manufacturers may vary.

Surface mount pick and place procedures are usually set up for a specific part. Any deviations that exceed the expected tolerances may cause the parts to be rejected and the production line to stop grinding. To maintain consistency, always ask your material supplier to arrange only one approved part-or at least, they should let you know about any possible changes so that your pick and place program can be updated offline and you can avoid any expensive machines Downtime.

pcb board

2. Choose the most efficient packaging

The formats in which the devices are offered can vary greatly-especially in the area of integrated circuits (ICs). Typical IC packaging methods can include waffle trays, tubes and reels-each is usually distinguished by a specific letter or number at the end of the part number.

If your goal is to get the best efficiency, then tape and winding parts are the first choice, because the use of tubular parts relies on the operator to replace parts at any time as the tube becomes empty, which may delay the manufacturing process. Of course, in some cases, it may not be feasible to request glued and wound parts, such as in the case of New Product Introduction (NPI), which is usually small in batch size. In these cases, it may not make commercial sense to buy a larger amount of equipment, so you can receive it in recording and reel format.

If you decide to change the parts from tube packaging to tape and reel, you also need to ensure that the sealing quality on the cover tape is adequate. Poor quality seals increase the risk of cover tape movement, which may mean that parts may be damaged or lost.

3. Avoid splicing components

Sometimes, it may be necessary to splice a smaller amount of tape and winding assembly together to form a larger continuous strip. But if this splicing is not performed well, the tape may get stuck in the surface mount machine. If the cover tape is pulled away from the carrier tape, you will be left with a stuck machine that needs to be resolved by the operator, resulting in costly downtime.

4. Plan things that are not always planned

Inherent in the manufacturing process is that things sometimes don't go as expected. If the surface mount machine is misplaced, dropped or damaged a component, and you don’t have more inventory of that component, you may have two difficult choices. You can choose to continue building with SMT and fit the part manually once it arrives, or you can stop working while ordering (and waiting) for a replacement part. The reality is that neither option is particularly ideal. Installing parts manually can affect quality, increase the risk of damage, and affect your delivery time. At the same time, choosing to stop working means that your machine is idle and costs you money.

Putting the wastage into your component kit may cost you a small amount in the first place, but it can save you hundreds of pounds in additional rework. Therefore, whenever possible, make sure that you require more of each component than you actually think. The smallest details can have a huge impact on the efficiency of PCBA production. By developing a procedure to continuously monitor and improve the process, you will be able to identify and eliminate things that don’t work, firmly grasp quality and increase profitability.