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22 Threads found on Process Scaling
Can anyone pls explain to me in digital layout what are the factors that affect 1) Timing (causing timing violations) 2) power 3) area (if i have missed on any other factor that is considered while doing digital layout design kindly include that too pls) For a analog layout with scaling technologies so many issues are considered while doin
Hi, I've a completed layout in ADS and am wanting to produce the artwork for creating the micro strip circuit. Our lab has a convoluted process of exporting dxf and colouring it in and scaling it a few times. After some playing with the artwork generation in ADS, I've not produced anything usuable; to scale or even the right colour (black).
What is the peak to peak voltage range and the frequency of the AC signal? Essentially, you will need to signal process by scaling and level shifting the AC signal into the DC range of the ADC0808. BigDog
CMOS process provides lower power consumption and is easy to scaling down. Gate of MOS needs much lower driving current than base current of bipolar. scaling down increases CMOS speed.
Depends on your process and power supply voltage. Perhaps the following document may help you down-scaling:
This process is called analog scaling and it can be reasonably easy done with opamps .. Here is an appnote: scaling DC Input Voltages Give it a read .. IanP :D
Hi dears, I need scaling factors for calculating delay time changes,Power consumption, bandwitdth and chip area from 0.6um & 0.18um (TSMC) process to 90nm (UMC) process. I search ITRS ( ) but no topic find about it.:cry: thanks for your help.:D Regards
All, What happen to the variation of the design (say OSC) if I use 1.8V VDD for my 3V transistor. One thing for sure we need to watch out for headroom. If the headroo is OK, what else can contribute to the high variation of the design across temp, process and VDD. (PVT) thanks in advance
can any one tell me wat is theoretical utility of image gradient in image scretching or scaling process
The voltage range of analog output signal is 880mv to 3.5V. But the ADC input range is 0 to 2.5V. Should I use voltage clipping, voltage divider or use AC coupling to process input signal for matching ADC input range? Thanks.
Hi, I am trying to design an ADC with 8bit 2GS/s specifications with minimum power consumption. The process is 0.13um BiCMOS. I am trying to look for papers and found some groups used folding+interpolation to achieve >1G with 8bits resolution. Is F+I the only possible way to achieve the specs or there are better ways to do it? Do anyone have some r
I tried to simulate just a simple circuit of two inverters in cadence: one inverter from each process. My first issue was the scaling: one process scales units to um and the other doesn't so it is not able to recognize the device size as it is in the correct range for the model!! How do I deal with that?
If your circuits are all 3V devices, there will be no scaling effects from 0.18um process to 0.13um process. If your circuits are all 1.8V device, there will be some scaling effects from 0.18um process to 0.13um process. Usually, there will be about 40~50% shrink for all digital (...)
There are lots of critical issues that troubled in this technology. i.e Metal Resistance metal width are getting smaller this will be accompanied by increase in resistivity. scaling problem with the VIAs and CONTACT's also the resistance accompanied by them will become higher, plus the mask preparation will become longer to process. Leakage
Check the tutorial by Steven Smith about overlap-add method and FFT convolution - you don't need a very big FFT, you can process in real time.
Hi onlymusic16, could you explain "process is normally followed by a multiplier. This scaling factor accounts for variations in the outcome of the actual semiconductor manufacturing steps, typically 1.0 for most technologies" more clearly, for e.g asssume a case what will be the impact if the process is 2.0 . Since (...)
Hi, Does anyone have any idea how much the dielectric constant of the insulator material changes in standard CMOS processes and how much better/worse this gets with process scaling? I guess the TC should increase as more focus is placed on low k for less parasitic capacitance?
CMOS process technologies are available from most foundries in these gate lengths : 0.18 ?m, 0.13 ?m, 90 nm, 65 nm, 45 nm etc. What factor determines the scaling from one technolgy to another ? One trend i notice is that there is divide by 2 scaling in every alternate generations , ie, 0.18 /2 is 90 nm, 90nm/2 = 45nm, 0.13/2 is 65 nm (...)
Analog design is full of different trade-offs. In my view, you can not say which process is better until you design the circuit in both technologies and see which one is less noisy. What I can say from basic formulas of noise in CMOS technologies is that, usually by scaling the noise of the process will increase. For example, thermal noise (...)
I don't know exactly you want to know. But in general, when the design scales from other process, lots of parameter should be consider. Such as Vt, gate capacitance, not only the voltage and length.
when a new process is born, normally the thickness of the gate oxide is scaled down too, what is the key reason?
if you work in low voltage deep-submicron process, the threshold voltage is no longer as high as 0.7V. If you really need to work with supply voltage at the level of 0.7 V (may be 0.13um or even 0.09um process??), the Vth should be in the range of 0.3 - 0.5 or 0.6V, thus your logic gate still can be turned on. Technology scaling almost all (...)