In the reliability design of hardware circuits, the following 8 key points are crucial. Each key point is analyzed in detail based on specific engineering examples.
- Key point 1: The difference between quality and reliability
- Key point 2: The relationship between product life and individual product failure
- Key point 3: Laws that cannot be ignored in hardware product development
- Key point 4: Two main methods to improve reliability in hardware circuit design
- Key point 5: In-board circuit test, system test, reliability test, the relationship between the three
- Key point 6: Pay attention to the changes of circuit characteristics caused by temperature changes, and grasp the changes
- Key point 7: determine whether a potential failure may occur, the most critical basis for judgment
- Key point 8: The influence and difference of steady-state and transient impact on circuit stress, and how to extract such requirements from the datasheet
- Summary: For reliability, what are the key points that need special attention in circuit design?
Chapter 2 Selection of Circuit Components and Reliability in Application
- Tantalum capacitors, aluminum electrolytic capacitors, ceramic capacitors, reliability issues in the selection and application, where should all types of capacitors be avoided, and case studies
- Inductance, magnetic beads, reliability problems in application, and case analysis
- Common mode inductance (common mode choke) selection considerations and examples
- Diodes, Schottky diodes, transistors, MOSFETs, reliability issues in type selection and application, and case studies
- Crystal, crystal oscillator, reliability problems in application, and case analysis
- Reliability in the application of insurance management, selection and calculation examples of insurance management
- Reliability problems in the application of isolated components such as optocouplers, and parameter calculation methods based on reliability
- Application and example of buffer in reliability design
- Common reliability problems and countermeasures of I2C circuits, and engineering examples
- Circuit pull-up and pull-down resistor resistance calculation and reliability issues, and engineering examples
- Common reliability problems and case analysis of reset circuit
- Reliability problems caused by deviations of component parameter values, and calculation examples
- Verification of multiple components under the same material code, and failure case analysis
Chapter 3 Reliability in Chip Application
- The two kinds of damages (ESD and EOS) that the chip is susceptible to, the mechanism analysis, engineering example analysis
- Overshoot and analysis of chip signal interface, analysis of engineering cases
- Chip drive capability and related reliability issues, drive capability calculation methods and examples
- Whether to use spread spectrum clock, and its reliability analysis and case analysis
- Reliability problems and cases in DDRx SDRAM applications
- Reliability problems and cases in flash memory application
- Problems caused by chip models and case analysis, evasion strategies
- Read the chip manual-learn to find the design requirements put forward by the datasheet
- Reliability issues that may arise from chip upgrades, case studies
- High-temperature, low-temperature and other extreme environments stress analysis and case analysis of chips
- The influence of signal jitter on the reliability of the chip receiver, debugging methods and case analysis
Chapter 4 Derating Design and Case Analysis of Components and Chips
- The working mode of derating design in current enterprises
- Two Misunderstandings and Analysis of Derating Design
- Principle and analysis of derating
- Derating standards and the way in which enterprises and institutions formulate their own derating standards
- Several problems and analysis on derating in engineering design
- Component parameter derating-resistance derating calculation and analysis example
- Component parameter derating-capacitance derating calculation and analysis example
- Component parameter derating-MOSFET derating calculation and analysis example
- Component parameter derating-chip derating calculation and analysis example
- Derating of component parameters-sometimes the rating is not enough and needs to be derated
Chapter 5 Reliability in circuit design such as clock, filtering and monitoring
- Reliability of clock circuit design
Nine potential reliability problems and case analysis of clock circuit
Key Points and Case Analysis of PCB Design of Clock Circuit
- Timing design reliability problem and case analysis
- Reliability of filter circuit design
7 potential reliability problems and case analysis of filter circuit
In the design of the filter circuit, the two most difficult problems to solve and their impact on reliability and solutions
Filter circuit PCB design and potential reliability problems, case analysis
- Monitoring the reliability of circuit design
Analysis of commonly used monitoring methods in hardware circuit design, 5 key monitoring links, and engineering design examples
Monitoring circuit reliability problems and case analysis
Chapter 6 Reliability related to “heat” in circuit design
- How does heat affect the reliability of electronic products? Analysis, calculation and case analysis
- How to control the influence of “heat” in electronic design-10 points and case analysis
- Misunderstanding about “heat” in circuit reliability design-7 misunderstandings and case analysis
- Components work continuously and intermittently, the impact on life
Chapter 7 Reliability in the design of circuit protection and protection
- Potential reliability problems in anti-reverse insertion design-combined with case analysis
- Reliability problems and case analysis of power-on shock
- Hidden dangers of I/O port reliability—5 kinds of I/O port impact methods, case analysis and evasion strategies
- Active and standby redundancy improves reliability—Several design methods and examples of active and standby redundancy
- Potential reliability problems and solutions in the design of interconnection of multiple circuit boards through connectors
- How to improve reliability in the design of overcurrent protection circuits, problems, strategies and cases
- How to improve reliability in the design of protective circuits, common problems, evasion methods and case analysis
- Reliability points and application examples of TVS tube applications in protection circuits
- Reliability issues in the application of clamp diodes, case studies
- Hidden reliability risks in low-power design
Chapter 8 Reliability in Power Circuit Design
- Choose a power module or a power chip to build a power circuit by yourself—the advantages and potential problems and case studies of the two solutions
- Whether to use a centralized first-level power supply or a distributed two-level power supply, their respective advantages and disadvantages
- Several links in the power supply circuit most likely to cause reliability problems-analysis and cases
- Several reliability problems easily caused by LDO power supply, and case analysis
- Six reliability problems in switching power supply design-principle analysis, example waveforms, solutions and engineering strategies
- 16 design points and case analysis to improve power circuit reliability
Chapter 9 Reliability in PCB design and anti-interference design
- Surface layer routing or inner layer routing, their respective advantages and disadvantages, where should surface layer routing be preferred, and inner layer routing should be preferred, instance analysis
- How to avoid the contribution of surface traces to EMI-methods and examples
- On what occasions do you need to lay copper foil on the surface of the PCB? When shouldn’t copper foil be laid? Potential reliability issues that may exist in this operation
- Under what circumstances should the impedance-controlled circuit board-an example analysis
- Noise comparison between power supply and ground
- Strategy for reducing power supply noise and interference in PCB design
- Understanding of signal loops in PCB design-the impact of loops on interference and EMI, the way loops are formed, which loops are allowed to exist on PCBs and are beneficial, case studies of various situations
- On the PCB, the processing method of clock traces and potential reliability problems, and case analysis
- In PCB design, how to isolate the interference on the ground copper foil
- In PCB design, reliability problems and case analysis caused by factory process limitations that are easy to ignore
- PCB design, several points related to reliability and design examples
- In circuit design, points and examples of reliability design for PCB production and soldering, assembly
- How to control and check the specific changes, methods and examples of PCB each time the board is changed
- The relationship between grounding and anti-interference, reliability, misunderstanding, 7 comprehensive case analysis and classroom discussion
- How to configure FPGA pins to improve anti-interference performance and reliability—design examples and design experience
Chapter 10 FMEA and the reliability of hardware circuits
- Parsing FMEA
- Relationship between FMEA and reliability
- What problems can FMEA help companies solve?
- The status of FMEA in the industry
- FMEA related standards and analysis
- The 10 steps of the FMEA plan and the main points and examples of each step
- FMEA test plan—example analysis, point analysis, test method
- In the product development cycle, the point in time when FMEA starts
Chapter 11 Software and Hardware Cooperation and Reliability
In many occasions, the reliability of electronic products can be improved with the help of software, which saves time and effort and has a better effect.
Therefore, hardware R&D engineers need to have a certain understanding of software, and master how to coordinate with the software department, with the help of the realization of software, to improve the reliability of electronic products.