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0 votes
1 answer
38 views

Carrier concentrations versus temperature and doping in Matlab

I am currently self studying structure of semi-conductors and I would like to make a graph in Matlab of the number of carriers as a function of temperature and doping. Let's say that I am testing ...
0 votes
2 answers
145 views

Can a chip be damaged if it goes above operating temperature while running?

An image sensor I'm using has the following temperature spec: Absolute Maximums: Ambient storage Temperature Max: 125°C Recommended Operating Conditions: Stable image temperature Max: 50ºC ...
0 votes
1 answer
3k views

Dependency of conductivity on temperature of extrinsic semiconductor

For an extrinsic semiconductor, how can we explain the following dependency of conductivity on temperature as shown here: My thoughts: At 0 K there is no energy available, hence no electrons can flow ...
4 votes
1 answer
456 views

Estimate temperature for silicon (p-n junction)

I need to estimate the temperature at which p-n junction made of silicon lose it rectifying characteristics. (\$N_A=N_D=10^{15}\,cm^{-3}\$) \$E_G\$ is independent of the temperature and are 1.12 eV ...
0 votes
1 answer
256 views

Select zener for minimal thermal drift

The voltage of a Zener diode in the Zener breakdown region depends on temperature. Suppose we have 3 Zeners with the following specs: 3.3 V rated Zener voltage at 5 mA 5.1 V rated Zener voltage at 5 ...
0 votes
2 answers
2k views

Calculating chip junction temperature based on case temperature

As far as I know one can calculate a chip’s (Diode, Transistor..) junction temperature rise with the consumed power and the thermal resistance Rth. Is there a way to calculate the junction ...
1 vote
1 answer
281 views

Why do bare die chips (MOSFET) have a maximum storage temperature?

As far as I understand, a chip in general and a MOSFET in particular has a maximum operating temperature (let‘s say 125 °C or 150 °C for Si) because above that temperature the risk increases of ...
2 votes
2 answers
187 views

Measuring junction temperature of LED tape?

My boss at work wants me to figure out a method of measuring the junction temperature of an LED that is part of a reel of tape. Unfortunately, there is no datasheet for the LED modules themselves, ...
1 vote
2 answers
2k views

How does cold weather affect the electronics

At Why exactly do chips start malfunctioning once they overheat? Sharptooth asked a very nice question about how does overheat affect electronics. That raised me the question of what does cold ...
3 votes
2 answers
187 views

Could modern electronic chips (e.g. ARM and Intel processors) operate for millennia at sufficiently low temperatures and clock speeds?

More broadly, what the practical maximum a modern silicon chip could be expected to last (assuming it operates at some temperature above 77K, and it has stable power)? For example, I expect diffusion ...
41 votes
10 answers
23k views

Why is the temperature range of industrial and military products so high?

From Wikipedia the common temperature range for electrical components is: Commercial: 0 to 70 °C Industrial: -40 to 85 °C Military: -55 to 125 °C I can understand the lower part (-40°C and -55°C) ...
0 votes
1 answer
69 views

Semiconductors-Achieve specific temperature

I want to achieve a specific temperature using a semiconductor or an electrical resistance in general. The temperature I want to achieve is at about \$30^oC = 86^∘F\$. This experiment consider it to ...