Mobile phone ESD control technology, error correction methods and remedial measures Mobile phone ESD control technology, error correction methods and remedial measures Mobile phones are in an environment full of static electricity throughout their life cycle. If the anti-electrostatic discharge (ESD) design is not good, it may cause the mobile phone to lock up, reset, data loss and unreliability during use. This article will explain the basic principles and protection design methods of mobile phone ESD control, as well as remedial measures during product production, based on actual design. The most obvious impact of ESD damage is device failure. Sudden static discharge from fingers or other conductors can damage static sensitive devices or microcircuits. Electronic devices at risk of electrostatic discharge may be completely unaffected, or damage may occur but cannot be immediately detected, but due to the degradation of the intermediate layer, its expected life may be reduced, which is a potential equipment operation failure. ESD events cause device quality degradation, causing failure during continuous use. ESD damage can be cumulative, causing the damaged device to function sometimes well and sometimes badly, and this type of failure is somewhat hidden. Another important impact of ESD is interference with operating equipment. The energy transmitted and emitted by ESD events can be mistaken by the operating system as valid data, causing temporary errors in the data transmission process. In more serious cases, the device may produce serious failures, such as disconnection of the phone line or complete disconnection, which requires manual restart. ESD control technology One way to prevent ESD damage is to design special protection structures against ESD in devices, circuit packaging and systems. Another way is to prevent the accumulation of static charge and thus avoid the occurrence of ESD. 1. Basic principles of ESD control: a. Recognize that all electronic components and assemblies are sensitive to ESD damage; b. Avoid touching sensitive components and assemblies without proper grounding; c. Avoid transporting, storing and handling static sensitive components and assemblies unless in an electrostatically safe environment. 2. Design protection The main effective means of protecting microelectronic circuit components is to establish a protection circuit during device manufacturing. Designing a protection circuit requires a comprehensive consideration of three factors-the main function of the device, the manufacturing constraints of the device (such as shielding level and material properties) and the location of the device (ESD control). The protection circuit must react faster to ESD than the device being protected. Although typical device protection can be obtained through design circuits, no device manufacturer can completely...
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