Inspection requirements for PCBA processed products

  In PCBA processing, the processed electronic products need to be inspected. Only the products that pass the inspection can be shipped. Next, Shenzhen PCBA processing manufacturer-Shenzhen VIASION Electronics will introduce the inspection requirements of PCBA processed products.

  Inspection requirements for PCBA processed products

  1. Quality requirements of printing process

  ① The position of the tin paste is in the middle, without obvious deviation, and can not affect the paste and soldering;

  ②The printing tin paste is moderate, and it can be pasted well, and there is no less tin and too much tin paste;

  ③ The tin paste point is well formed, and there should be no continuous tin and uneven shape.

  2. Quality requirements for component placement process

  ① The component placement must be neat, centered, without offset or skew;

  ② The type and specification of the components at the mounting position should be correct; the components should be free of missing or wrong pasting;

  ③ SMD components are not allowed to have reverse paste;

  ④ SMD devices with polarity requirements should be installed according to the correct polarity markings;

  ⑤ The component placement must be neat, centered, without offset or skew.

  3. Component soldering process requirements

  ① FPC board surface should be free of solder paste, foreign matter and marks that affect the appearance;

  ② The bonding position of the components should be free of rosin or flux and foreign matter that affect the appearance and soldering tin;

  ③  The tin spot under the components is well formed, and there is no abnormal wire drawing or sharpening.

  4. Appearance process requirements of components

  ① There should be no cracks or cuts on the bottom of the board, surface, copper foil, circuits, through holes, etc., and no short circuit caused by poor cutting;

  ② The FPC board is parallel to the plane, and the board has no convex deformation;

  ③ The FPC board should have no leakage V/V deviation;

  ④. There is no blur, offset, reverse printing, printing deviation, ghosting, etc. in the silk-screened characters of the marked information;

  ⑤ There should be no swelling and blistering on the outer surface of the FPC board;

  ⑥ The aperture size requirements meet the design requirements.