An accurate procurement management planning economy can accurately predict and master the production and development plan of an enterprise, and enable Chinese enterprises to minimize the occupation of procurement funds on the premise of meeting their own
the prices of PCB board and components in the Chinese market are basically public information and transparent for enterprises on major network platforms, which can be referred to through comparative study.
PCB testing has become an indispensable part of the circuit board manufacturing process. It finds the problem in time, assists the staff to deal with it quickly, and ensures the high quality of PCB.
It is a kind of pin-free or short lead appearance assembly components (SMC/SMD, Chinese known as chip components) installed in the Printed Circuit Board (PCB) appearance or other substrate appearance, after reflow welding or immersion welding and other me
To prevent warping, design engineers must balance the copper pattern on each layer of the circuit board with the area of the circuit. Design engineers must also balance component layout, assembly distribution, and heat distribution to reduce warping.
If the PCB is warped, that is, uneven, the machine's inability to maintain a constant height when releasing the component while placing it on the board affects the accuracy of placement, especially for fine-spaced components.
The main application is the process of small batch trial production to the circuit board factory after the electronic engineer has planned the circuit and completed the production of PCBA, that is, PCBA proofing.
From the development trend of various regions in the world, after large-scale restructuring, migration and technological upgrading, domestic PCB and FPC production and processing enterprises seize the opportunity of transferring electronic products to the
PCB copying board is to scan the circuit board, record the location of the components in detail, and then remove the components to arrange the material purchase, and scan the empty board into pictures, processing and restoring to the drawing file.
The comparison between design and wiring is a major error in the final stage of PCB design. So a number of things need to be checked again, such as device size, hole quality, pad size and review level.
With the continuous improvement of electronic communication technology, more and more traditional circuit board manufacturing methods have been far from meet the rapid development of this era, want to really fast production of high precision, good perform
For designers, our main consideration is the minimum line width of wiring, spacing control and wiring uniformity. Because the spacing is too small will cause the clip film, film can not fade resulting in short circuit.
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