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circuit board imposition specifications
The main advantage of b circuit board is to greatly reduce wiring and assembly errors and improve the automation level and production labor rate. The following is an introduction to the knowledge about B circuit board puzzle:
, circuit board puzzle width (line) or 3 (line). If automatic dispensing is required, B puzzle width and length
, puzzle shape as much as possible Nearly square, it is recommended to use,, and panels but do not form a yin and yang board
The outer frame (clamping edge) of the circuit board panel should adopt a closed-loop design to ensure that the B panel will not deform after being fixed on the fixture
/>, the center distance between small boards is controlled within ~
, there should be no large devices or protruding devices near the connection points between the outer frame of the puzzle and the internal small boards, or between small boards. , and there should be a space of more than . To ensure that there will be no breakage during the board loading and unloading process, the aperture and position accuracy must be high, the hole walls are smooth and burr-free
. Each small board in the circuit board panel must have at least three positioning holes, 3 apertures, and the edge positioning holes. Wiring or patching are not allowed. Reference symbols used for the entire board positioning of the circuit board and for the positioning of fine-pitch devices are not allowed. In principle, the spacing is less than . The positioning reference symbols used for imposition circuit boards should be set at their diagonal positions and should be used in pairs and arranged at the diagonal corners of the positioning elements.
When setting the reference positioning point, usually leave a solder mask-free area larger than it around the positioning point
Based on the principles of quality first, reputation first, and win-win cooperation, we strive to achieve zero defects management philosophy throughout. While pursuing perfect quality, we are also constantly improving our service system. We look forward to cooperating with friends at home and abroad to seek common development!
Zhongtian Yuan Circuit Board Co., Ltd. is a high-tech enterprise in Zhengzhou specializing in the R&D, production and processing of B circuit boards, multi-layer printed boards, and aluminum substrates
We have always put quality first and customer first. As our service tenet, we provide you with considerate service. We welcome customers and friends to call us for consultation and purchase negotiation!