Hello All I work for an established company that is trying to make movesforward

Question

Hello All I work for an established company that is trying to make movesforward in regards to quality. We have the tools to be able to inspect parts up to 500xmagnification. In the eyes of the electrical engineer what kind ofissues are of concern in quality. Examples being... Do you care about mis shapen BGA's, residueor scratches on the circuit boards? We already have an idea of the kinds of standards already putin place but I would rather hear some real life concerns/situationsthat can give a better understanding to the customers needs orwants. Any feedback would be of great appreciation. Even if you tellme in I am the wrong place all together. Thank you for any help!!! :-) Howie Hello All I work for an established company that is trying to make movesforward in regards to quality. We have the tools to be able to inspect parts up to 500xmagnification. In the eyes of the electrical engineer what kind ofissues are of concern in quality. Examples being... Do you care about mis shapen BGA's, residueor scratches on the circuit boards? We already have an idea of the kinds of standards already putin place but I would rather hear some real life concerns/situationsthat can give a better understanding to the customers needs orwants. Any feedback would be of great appreciation. Even if you tellme in I am the wrong place all together. Thank you for any help!!! :-) Howie

Explanation / Answer

I worked for a large electronics company for 34 years, holdingpositions in manufacturing, R&D and marketing. Let metell you, this is not an easy question. It is very openended.
Quality has many more elements than just cosmetics. Primary is the reliability of the design. Alsoimportant is the suitability of the product for the needs of theend user. Cost is a quality issue, as well.
In terms of the cosmetics, I'd look to what can normally beexpected using good process control. I assume that thecircuit boards are now surface mount. This requires almost100% automation, and the issues are more cleanliness thanscratching. If there is rough handling putting a PCB into aproduct, that should be eliminated, either by better handling or abetter design for manufacturing. If a repair is needed, suchas changing a part, the PCB should show no burn marks (we used tocall these measles). The board cannot get too hot or thetraces will de-laminate. Hand solders almost always have someflux inside, the choice of flux should be done carefully, we alwaysRMA (Rosin, mildly active) instead of the more common RA as thelatter will cause corrosion over the life of a product.
As you can guess, more info is needed as to the expectationsof your customers and the type of product you are making.

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