PCB News - PCB engineer classification basis

There are grading basis among PCB engineers: beginner, elementary, intermediate (ABC), advanced, let's see what level you are.

skill requirements:

1. A simple package can be made, such as DIP10;

2. Master the basic operations of at least one PCB design software, and be able to formulate simple wiring rules such as line width and spacing;

3. It can carry out a more reasonable and orderly layout and wiring for PCBs with 100 components and 200 networks or less;

4. It can be manually or automatically routed and modified under other people's or custom rules to achieve 100% deployment and DRC completely pass;

5. Possess basic mechanical structure and thermal design knowledge;

6. Master some basic requirements for double-panel wiring.

Work content:

1. Simple PCB design and modification (such as simple structure front panel, single chip microcomputer system board, etc.);

2, the wiring of the specified part of the complex PCB board;

3. Debugging related to PCB design;

4. Write related development and debugging logs.

Job Responsibilities: Responsible for the self-designed part of the PCB.

Job position: Junior PCB engineer

skill requirements:

1. Complicated packages, such as RJ-45 with light, can be made according to the manual and real objects, and the dimensions, pads, etc. are completely correct (at least insertable according to the actual measurement);

2. Familiar with at least one PCB design software and able to formulate more detailed wiring rules independently or under guidance;

3. It can carry out a more reasonable and orderly layout and wiring of single, double-sided and multilayer PCBs with 400 components and 1,000 networks or less, and can take into account thermal design, structural design, and electromagnetic compatibility at any time during the layout and wiring process If you are not sure about the requirements of sexual design, aesthetics, etc., please consult or discuss with more senior PCB engineers in time;

4. Able to manually or automatically route and modify under other people's or self-defined rules, to achieve 100% deployment and DRC completely pass, basically there is no line width bottleneck, inner islands, etc., and a small amount of principles can be seen during the wiring process Low-level errors in the design are raised, and the pins and gates can be exchanged correctly, and the network table and schematic diagram can be modified correctly;

5. Able to correctly import and export mechanical drawings and basically understand the structural size requirements;

6. Be able to carry out some high-speed and analog PCB design under the rules or guidance of others and be basically stable;

7. The silk screen logo is clear and clear, and it can independently complete the design output work such as GERBER and proofread it;

8. Have basic manufacturability knowledge and use it in practice, and more than 50% of the designed board can be used for production.

Work content:

1. The design and modification of more complex PCBs (such as boards other than the CPU board in the dispatcher, 16-picture splitter board, etc.);

2, the wiring of the specified part of the complex PCB;

3. Debugging related to PCB design;

4. Work guidance for all lower-level PCB engineers;

5. Write related development and debugging logs;

6. When necessary (referring to the temporary absence of corresponding design tasks within a certain period of time, or when a certain PCB design work time is tight, and the designers must be transferred or strengthened, the same below), make up any low-level PCB engineer's work.

Job Responsibilities: Responsible for the self-designed part of the PCB.

Job position: Intermediate PCB engineer (according to the individual's specific ability, it can be divided into three levels: A, B, and C, A is high, and B is the second)

skill requirements:

1. Able to fully understand various original device manuals and wiring manuals, independently make extremely complex packages, such as placing switches, and ensure that various capabilities are completely correct (at least insert according to physical measurement), and can be based on the principle and structural requirements by itself Find suitable components or replacements;

2. Familiar with the operation and skills of at least one PCB design software and be able to formulate detailed wiring rules;

3. Able to put forward suggestions on the division and integration of various functional sections according to system requirements, and be able to carry out reasonable layout and wiring of various functional sections for the independent or division of the PCB of any number of components and networks, and the thermal design and structure can be considered at any time during the layout and wiring process. Design, SI, PI, EMC, aesthetics, manufacturability and other aspects of the requirements and propose solutions, can provide entry-level and junior PCB engineers with some layout and wiring requirements and rules reference, etc.;

4. The laminated structure design of the board can be correctly carried out, and the number of layers and the cost can be reduced as much as possible while meeting the performance requirements;

5. Have more high-speed and analog PCB designknowledge in terms of impedance, time delay, overshoot, crosstalk, loops, signal loops, planar integrity, inner splitting slots, signal termination, etc., and can be independent or in SI Under the guidance of engineers, complete the SI simulation and analysis of key signals and areas and put forward suggestions for improvement;

6. Be proficient in manual or automatic wiring and modification under the driving of rules. The whole board has a certain aesthetic feeling. During the wiring process, more than 80% of the low-level errors in the principle design can be seen and put forward, and they can be proficient in correct pin and gate exchange;

7. Able to communicate well with principle and structural design engineers, can understand more complicated mechanical drawings, and can put forward some reasonable improvement opinions related to PCB design in principle, device selection and structure, to help system design succeed as soon as possible;

8. The test points and silk screen marks are clear and error-free. Low-level mistakes in PCB design are rarely made. Generally, PCB design errors will not lead to revisions. 9) More than 9% of PCB processing manufacturers always give feedback and can solve them by themselves;

9. With more knowledge of manufacturability and practical practice, more than 70% of the designed boards can be used for direct mass production.

Work content:

1. Design and modification of extremely complex PCBs (such as 8-channel DVR backplane, PC motherboard, etc.);

2. Debugging related to PCB design and SI simulation of designated parts;

3. Provide work guidance and wiring rules for all lower-level PCB engineers;

4. Write related development and debugging logs;

5. The internal PCB standard packaging library and standard wiring module of the production and maintenance unit;

6. If necessary, concurrently take up the job of any lower-level PCB engineer.

Job responsibilities:

1. Responsible for the design part of the PCB;

2. Responsible for the unit’s internal PCB standard packaging library and standard wiring modules for their own design;

3. Responsible for their own SI simulation results and solutions.

Position: Senior PCB Engineer

skill requirements:

1. Master the document conversion between various common PCB design software, and the transferred documents can basically be used for modification;

2. Familiar with all the requirements in high-speed and analog PCB design, more than 80% of the boards designed or instructed by others have no related problems;

3. Have a wealth of manufacturability knowledge and be used for practice and guidance. More than 90% of the boards designed or guided by others can be used for direct mass production;

4. Skilled in high-density layout and wiring under the control of high-speed rules, and the deployed modules or boards are stable and reliable, and at the same time can achieve more than 80%, which is very aesthetic;

5. It is very innovative, and can often put forward various constructive proposals for improving the efficiency of PCB design, PCB design quality, and PCB structure distribution in the system.

Work content:

1. Participate in the analysis, planning and simulation of PCB-related parts in the system design;

2. Organize and conduct PCB design training;

3. Provide work guidance and wiring rules for all lower-level PCB engineers;

4. Determine related development and debugging logs;

5, SI simulation model search, establishment and documentation;

6, the whole board and system SI, PI, EMC simulation, PCB manufacturability evaluation, problematic PCB cause analysis and propose effective solutions;

7. If necessary, concurrently serve as any lower-level PCB engineer.

Job responsibilities:

1. Responsible for all your own work;

2. Responsible for all guidance to others.