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Semiconductors are more than just processors and GPUs

blog.robertelder.org

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Re: Semiconductors are more than just processors and GPUs

#3
post #2

Fun fact: Solar cells and the LEDs are the same element. If you wire up a solar cell like an LED, it glows dimly in infrared. QA uses this to diagnose dysfunctional wafers.

Steve Mould had a video[1] about this a couple of years ago where he shows a small solar panel lighting up.

[1]: https://www.youtube.com/watch?v=6WGKz2sUa0w

Re: Semiconductors are more than just processors and GPUs

#4
post #2

Fun fact: Solar cells and the LEDs are the same element. If you wire up a solar cell like an LED, it glows dimly in infrared. QA uses this to diagnose dysfunctional wafers.

Steve Mould had a video[1] about this a couple of years ago where he shows a small solar panel lighting up. [1]: https://www.youtube.com/watch?v=6WGKz2sUa0w

Is it possible to have a light / emw battery ?

Re: Semiconductors are more than just processors and GPUs

#5
I used to be a professional computer geek on weekdays and professional photographer on weekends; and 20 years on, it still blows my mind the similarities between the materials and manufacturing of the CPU doing heavy work in my laptop and the sensor gathering pixels in my camera :O

Re: Semiconductors are more than just processors and GPUs

#7
post #2

Fun fact: Solar cells and the LEDs are the same element. If you wire up a solar cell like an LED, it glows dimly in infrared. QA uses this to diagnose dysfunctional wafers.

Hey, Electroboom just covered this:

https://www.youtube.com/watch?v=l2y-w9aS98k&t=617s

Re: Semiconductors are more than just processors and GPUs

#8

I used to be a professional computer geek on weekdays and professional photographer on weekends; and 20 years on, it still blows my mind the similarities between the materials and manufacturing of the CPU doing heavy work in my laptop and the sensor gathering pixels in my camera :O

Transistors!

E.g. EPROM (memory type chip) is typically deleted by shining a uv light on the actual silicon die, through a uv transparent quartz window in the final packaged chip.

edit: fixed EEPROM -> EPROM

Re: Semiconductors are more than just processors and GPUs

#9

I used to be a professional computer geek on weekdays and professional photographer on weekends; and 20 years on, it still blows my mind the similarities between the materials and manufacturing of the CPU doing heavy work in my laptop and the sensor gathering pixels in my camera :O

Transistors! E.g. EPROM (memory type chip) is typically deleted by shining a uv light on the actual silicon die, through a uv transparent quartz window in the final packaged chip. edit: fixed EEPROM -> EPROM

I read somewhere that some people used EPROMs and decaped Ram chips as digitizers for early computers.

Re: Semiconductors are more than just processors and GPUs

#10

I used to be a professional computer geek on weekdays and professional photographer on weekends; and 20 years on, it still blows my mind the similarities between the materials and manufacturing of the CPU doing heavy work in my laptop and the sensor gathering pixels in my camera :O

Transistors! E.g. EPROM (memory type chip) is typically deleted by shining a uv light on the actual silicon die, through a uv transparent quartz window in the final packaged chip. edit: fixed EEPROM -> EPROM

That's not an EEPROM. That's an EPROM. The first E in EEPROM is ELECTRONIC - i.e. you use a voltage (or a control word) to indicate that you would like to erase the device.

Also, EPROMs are extremely vintage. They were replaced by EEPROMs - the first of which came out in 1977. That's an... extremely vintage example.

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