integrated circuit - Do ICs have a shelf life? - Electrical Engineering ...
2017年4月13日 · 17. ICs as such dont have a shelf life, like milk or so. They do age on the shelf, though, but generally not as fast as when in use. What happens is you have a rising probability of ICs being dead when unpackaged, or dying earlier when used. Oxidation, radiation (both natural and man-made), and chemical degradation of the dielectric, and ...
How to interpret Vcc and GND on integrated circuits?
2015年12月25日 · You can indeed use a resistor to cause a voltage drop on the integrated circuit power line(s). Fact it's never done that way (at least not without clamping diodes, such as a reverse-biased Zener diode) because the resistor value depends on the current consumed by the IC, which varies and can vary a lot. Instead circuits are powered with a low ...
integrated circuit - How are OTP fuses in ICs implemented?
2019年9月2日 · So there, the OTP bit was actually a complete UV-erasable structure and not a simple bit of metal. So no single answer. In the IC processes I have worked with, the fuses which are used for OTP memory are made from polysilicon. They're simply polysilicon resistors with a value of a few hundreds of ohms when intact.
integrated circuit - What is a "DIE" package? - Electrical …
Low Cost -- It is also common in really cheap electronic devices to skip the cost of packaging. They use unpackaged dies and glue them to the substrate (PCB), bond the pads to the board directly, and then encapsulate the die in an epoxy to secure, seal, and protect everything. High Reliability -- It can also be done this way for speciality ...
integrated circuit - Preference of BJT to MOSFET - Electrical ...
2022年10月11日 · For example MOSFETs have lower source-drain voltage drop than BJTs have collector-emitter voltage drop if you have reasonable (not too high) currents. Low voltage switched mode power supplies usually use MOSFETs. Also MOSFETs don't have a wasted gate current like BJTs have a wasted base current. BJTs are good for class B and AB amplifiers so ...
Questions tagged [integrated-circuit] - Electrical Engineering Stack ...
Questions tagged [integrated-circuit] Ask Question. An integrated circuit (IC) is an electronic circuit built onto a single plate of a semiconductor material, normally silicon. Modern ICs may contain billions of transistors and they have played a major part in the miniaturization and performance improvements of modern electronic systems.
integrated circuit - What is the difference between a BIOS chip …
2019年1月15日 · From what I can gather, the BIOS chip is a loadable memory space that handles initial I/O, system checks and CAN configure certain things like power states and clock rates, before handing operation...
integrated circuit - Help Identifying an IC Chip - Electrical ...
2021年11月5日 · The chip is an CPX94 SOP8, with 9221 written below the CPX94. It connects to a MOSFET so I was looking to get its pinout. I'm not sure if this chip is now considered obsolete and that's why it's so hard to locate. In the circuit below, the resistors between the pads are rheostats. Below is the mostly complete setup, less the MOSFET and switch.
integrated circuit - What capacitors are available in chip design ...
2018年8月3日 · integrated-circuit; Share. Cite. Follow edited Aug 3, 2018 at 18:34. Voltage Spike ♦. 87.5k 48 48 ...
integrated circuit - ICs with humidity or moisture sensitivity - bake ...
I purchased some ICs recently that included something I'd not seen before - a moisture 'sensor' on a paper strip with color indicators for a few specific levels of humidity. Once the paper reaches a