Технология PCBA - описание обработки PCBA

что сказать обработка PCBA appearance inspection
обработка PCBA печатная плата, also known as печатная плата, printed circuit boards, often use the English abbreviation PCBA, Это важный электронный элемент, a support for electronic components, поставщик, подключенный к электронным элементам. Because it is made using electronic printing technology, Она называется "печатная" плата. Before the advent of printed circuit boards, взаимодействие между электронными элементами зависит от прямого соединения проводов для формирования полной цепи.

Now, планшет для испытания схем - всего лишь полезный инструмент для эксперимента, А печатная плата стала абсолютным лидером электронной отрасли. But most people still don't know what the обработка PCBA описание внешнего вида:? Let's learn about it with the editor of обработка PCBA.

обработка PCBA appearance inspection instructions

• Missing parts: The components are not mounted as required in the corresponding position on the PCBA.
холостая сварка: 3/4 of the area of the solder joints with no or less solder on the component feet (SMD components are less than 1/2 of the width of the component).
• Lian tin: Due to abnormal operation, Две неподвижные точки соединены оловом..
• Wrong parts: The components mounted on the PCBA do not match those shown on the BOM
• Welding: The component pins are not well tinned, and effective welding cannot be guaranteed (including false welding)
• Cold welding: The surface of the solder joint is gray without good wetting.
напротив: после установки сборки, the polarity is opposite to that specified in the document
• Tombstone: One end of the patch component is lifted away from the pad to form a tombstone
• Back: The front of the module (the silk-screened side) is facing down, but the welding is normal
• Open circuit: the component pin is disconnected or the circuit on the PCBA board is disconnected
• Tombstone: One end of the patch component is lifted away from the pad to form a tombstone
• Back: The front of the module (the silk-screened side) is facing down, but the welding is normal
• Open circuit: the component pin is disconnected or the circuit on the PCBA board is disconnected
• Lifting: The copper foil or pad of the circuit is lifted from the PCBA surface and exceeds the specification
• Multiple pieces: The file indicates the location of no components, and there are components on the corresponding PCBA board
• Tin cracking: usually after the solder joint is subjected to external force, the solder joint and the component pin are separated, влиять на сварочный эффект. Our factory is located in China. за десятилетия, Shenzhen has been known as the world's electronics R&D and manufacturing center. наш завод и сайт одобрены китайским правительством, so you can skip the middlemen and buy products on our website with confidence. Потому что мы прямой завод, this is the reason why 100% of our old customers continue to purchase oniPCB. Вы можете заказать у нас 1 кубик PCB. We will not force you to buy things you really don't need to save money.
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