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Recent content by cherryic

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    Poisson Equation Ellipstic Coordinate Transition Material Needed

    Poisson Equation Elliptic Coordinate Transformation Material Needed Hi all, Could you please do me a favor, I need this paper quite urgently, I have downloaded it on my PC 2 years ago, but I can't find it and download it now. Is there anyone who can send me a copy, thank you in advance! I...
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    Instance length does not fit the given lmax-lmin

    does not fit the given lmax-lmin Hi all, I need to use some PMOSFETs which have a length of 40u, but in the .scs file provided by TSMC, the length can not be larger than 20u, so I modify the lmax=20u to 50u in the file. But, when I simulate the circuit in Spectre it still says: “IXX.MXXX...
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    What's the function of DC/DC circuit used in BC3?

    Re: DC/DC Used In BC3 The figure shown below is the comparator used, the input signal is from the BC3 core, and the negative input to the op-amp is connected to a bias voltage generated by the bandgap in the DC/DC block, VB is also a bias from the bandgap in the DC/DC.
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    What's the function of DC/DC circuit used in BC3?

    Hi folks, Long time no see, I have been ill for several months, this is the first time I return DGC, I miss you guys so much! I got a DC/DC circuit used in BC3, but I don't know what's its function and what's it used for, can you give me some suggestions? Best regards, Terry
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    Temperature Option in Analog Artist

    Hi all, I have a question to ask you, that is, you know when I am using Cadence, in Analog Artist, there is a Temperature opition in Setup, what I wanna know is this Temperature is what kind of temperature, is it the environment temperature where the die is operating, or something else?
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    Dies Per Wafer Formula

    Hi all, In Rabaey’s book <<Digital Integrated Circuits-A Design Perspective>>, he gives us a formula for evaluating the dies per warfer, which is dies per wafer = [π*(waferdiameter/2)^2]/die area – (π*waferdiameter)/sqrt(2*die area), I wanna know where is the second term...
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    How to Calculate the CLMC?

    Hi all, today one of my colleagues asked me a question, that is how can we calculate the Channel Length Modulation Coefficient, this kind of question really confused me, most of the time I just pick up it and use it, but I don’t know how we can get it. Could you help me? Regards, Cherryic
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    How to Calculate the Channel Length Modulation Coefficient?

    Hi all, today one of my colleagues asked me a question, that is how can we calculate the Channel Length Modulation Coefficient, this kind of question really confused me, most of the time I just pick up it and use it, but I don’t know how we can get it. Could you help me? Regards, Cherryic
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    Input Current of CMOS Opamp

    Your reply really helps a lot!!! I've got it now.
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    Qustions about Allen’s Book

    Hi all, I have been reading P. E. Allen’s famous book <<CMOS Analog Circuit Design>> for 2 months, but I find some questions there, can anyone help me? In page 403, there is a line “However, the 1/f noise is aliased around clock frequencies…,” cuz I am not a native speaker so I don’t know what...

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