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As a hardware product manager, you need to have a comprehensive understanding of software, hardware, structure, design and other fields. Sometimes, just understanding is not enough, and more industry experience is needed to make judgments.
Life has a limit but knowledge not. When encountering this kind of situation, one of the previous ways to deal with it is to explore slowly by yourself and let time accumulate experience. The other is to ask the corresponding engineer politely. Whether others are happy or not is one thing. More often than not, some junior engineers may not be able to explain clearly.
But now the situation is different, I will give me some information with the help of ChatGPT. The following is the problem I encountered with the chip specification in my actual work. I asked ChatGPT for help, and it gave me the answer I wanted. I recorded the whole content with ChatGPT and shared it with the hardware engineer around me, and got a positive answer.
question:
The customer's request is: the working temperature of the product needs to meet the range of -20 degrees to 80 degrees.
I have the datasheet of this chip on hand, but these specifications are generally in English, and each English proper noun has a special meaning. Take temperature as an example, there are storage temperature, junction temperature, and ambient temperature. I need to confirm which temperature of the chip I have is the working temperature in the customer's selection requirements.
OK, let's start now.
Check a parameter on a specification: Working Junction Temperature = -40~120.
3 questions pop up in my mind:
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Is this Working Junction Temperature the working temperature mentioned by the customer?
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If not, what temperature does Working Junction Temperature refer to?
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So which English parameter should the working temperature mentioned by the customer correspond to?
The following is the record of my conversation with ChatGPT, if it can help me solve my doubts.
conversation log
User:
You are now a senior chip design engineer, please solve this parameter in plain language: Working Junction Temperature
ChatGPT:
Working Junction Temperature refers to the working temperature of the PN junction (also called diode junction) inside the chip, that is, the operating temperature of the chip. When the chip is running, the temperature of the PN junction inside the electronic device will change due to the passage of current, which will affect the performance and life of the chip. Therefore, Working Junction Temperature is an important parameter, which needs to be controlled within the set range to ensure the normal operation and reliability of the chip. Usually, this parameter will be given in the data sheet of the chip for engineers' reference.
Entering the state quickly, it seems to refer to the internal temperature, continue to ask and confirm.
User:
Is the junction temperature the internal operating temperature of the chip?
ChatGPT:
Yes, the junction temperature is the operating temperature inside the chip. The internal structure of the chip contains many electronic devices, such as diodes, transistors, etc., and these devices will undergo temperature changes due to the passage of current during operation. Among them, the diode junction temperature is one of the most important parameters inside the chip, because it directly affects the performance and life of the chip. Therefore, engineers need to precisely control the junction temperature inside the chip to ensure that the chip operates within the normal operating temperature range and can work stably for a long time.
Obtaining an affirmative answer, next, is there a parameter of "external temperature"? Continue to ask.
User:
What is the difference between the junction temperature and the surface temperature of the chip?
ChatGPT:
Junction temperature and chip surface temperature are two different parameters.
Junction temperature refers to the operating temperature of electronic devices inside the chip, and the most important parameter is the diode junction temperature. Diode junction temperature is one of the most critical temperature parameters inside the chip, which affects the performance and lifetime of the chip. Therefore, engineers need precise control of the junction temperature inside the chip.
Chip surface temperature refers to the external surface temperature of the chip. When the chip is working, heat will be generated inside the electronic device, and the heat will be dissipated through the surface of the chip. The surface temperature of the chip depends on the balance of heat generation and heat dissipation inside the chip, and is also affected by the external environment.
Although junction temperature and surface temperature are both parameters related to chip temperature, they are different concepts and need to be considered separately. The junction temperature mainly focuses on the temperature state of the electronic devices inside the chip, while the surface temperature takes more account of the heat transfer state between the chip and the external environment.
This external surface temperature sounds like the external working temperature. Continue to ask, is there a special term for it?
User:
What parameter is generally used to express the temperature outside the working temperature?
ChatGPT:
Typically, the operating temperature range is represented by several parameters. One of the common parameters is to specify the maximum and minimum operating temperature of the chip. For example, the operating temperature range of some chips may be listed as -40°C to 85°C, which means that these chips may experience unstable performance or damage at temperatures below -40°C or above 85°C Case.
In addition, some chips may provide some other temperature parameters in their data sheets, such as storage temperature, soldering temperature, etc. These parameters will also affect the performance and reliability of the chip. Therefore, when designing and using the chip, it is necessary to carefully consider these temperature parameters and ensure that the chip works normally within the specified temperature range.
Some Chinese nouns are given, but the specifications are all in English, I need him to give English proper nouns
User:
Please list these parameters in English
ChatGPT:
Here are the temperature parameters commonly used to specify a chip's operating temperature range, listed in English:
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Maximum operating temperature
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Minimum operating temperature
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Storage temperature
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Soldering temperature
Find the clue of operating temperature, and search in the specification to get a piece of information: Ambient Operating Temperature. So is this noun the working temperature? keep asking
User:
This parameter of the chip: what does Ambient Operating Temperature mean, and what is the difference from junction temperature
ChatGPT:
Ambient Operating Temperature refers to the operating temperature of the environment around the chip, also known as the ambient temperature. In contrast, junction temperature refers to the operating temperature of the electronic devices inside the chip, where the most important parameter is the diode junction temperature.
Solve the problem smoothly, the chip specifications meet customer needs!
final words
Through the above example, we have seen the power of ChatGPT. At the same time, we can also let it help us solve doubts in the fields of software, industrial design, and testing. Altman, the founder of OpenAI, said before that the limitation of ChatGPT's ability may come from your imagination and language expression ability. There is really nothing impossible, only unexpected. This is a treasure that needs to be explored slowly!