Technologies > UMC Overview


UMC 0.25 um technology overview (MPW):


Process Name
L250
MixedMode/RF
Process technology specificationsunits
Substrate Type
P-substrate
Nwell - Sal ( Poly[n][p] / Active[n][p] ) Unsalicided ( Poly[n][p] / Active[n][p] )Ohm/sq400 - ( [2.5] [2.5] / [2.5] [2.5] ) ( [133] [309] / [79] [79] )
Wafer size (6) / available die thicknesses
8 Inch / 29 Mils - 11 Mils
High Ohmic Resistor (HR)Ohm/sq948
Metal Metal Cap (MiM cap)fF/µm²1
Low Vt / Zero VT implant
Y/Y
Twin well / Triple well / Thick gate for 3.3V
Y / Y / Y
Number of Poly/Metal Layers#1P 5M
Metal1/2/3/4/5 /6 /7/8 Pitchµm0.96/0.8/0.8/0.8/0.64
Min drawn MOS Length (regular/3.3V)µm0.24 / 0.34
Min diffusion width for MOSµm0.3
Operating VoltageV2.5 / 3.3
Vton(N / P)V0.54 / -0.58
Ioff(N / P) core transistor (VD = VDD, Vg = 0V)pA/µm3 / -2
Number of Masks (all options included)#35
Ring Oscillator stage delay ( 2 conditions)pSec/stage40 (@2.5V) 55 (@3.3V)
RF Top Level Metal Pitchµm2.2
RF Top Level ThicknesskA20
FtGHz32GHz @ 140µA/um Vg/Vd=1.5V/2.5V
FmaxGHz30GHz @138µA/um Vg/Vd=1.5V/2.5V
Cadence Design Kit
MixedMode + RF





(1) The designkit can be used for designs in Logic process, when only using the Logic layerset and using the appropriate modelset
(2) The Logic Virtual Silicon Technology libraries are compatible with the Mixed Mode processes. Contact Europractice first to sort out legal issues
(3) Other combinations of metalization scheme exist, but are not available on the MPW runs.
(4) High Speed (HS) Standard Performance (SP) Low Leakage (LL). Two out of three flavours can be combined on one design
(5) Density numbers can be strongly dependent on the specific configuration of the memory
(6) From the MPW only naked dies can be delivered. This is just an indication of the original wafersize

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