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Product Overview

I3T25: 0.35 µm Process Technology

Product Description
Providing the density of a 0.35 µm digital process, analog/mixed-signal capability and high voltage, the Intelligent Interface Technology I3T25 process from ON Semiconductor is the answer to the need for increased digital content in a mixed-signal and/or high voltage environment. Featuring high voltage devices up to 18 V as well as digital and analog operation at 3.3 V and 12 V, the I3T25 process family features a wide range of capabilities in a single IC.

Features

  • 3 to 5 metal layers
  • Metal to metal (MIM) linear capacitors
  • Poly to poly capacitors
  • High and medium resistivity polysilicon resistors
  • Floating HV thick/thin ox NDMOS andPDMOS transistors
  • Floating low-voltage diodes
  • Schottky diode
  • Medium-voltage PNP and NPN bipolar transistors
  • Zener zap diode for OTP
  • Buried zener diode for clamping
  • Medium-voltage floating metal capacitors
  • Deep n + doped guard rings
  • Medium-voltage floating metal capacitors

Process Characteristics

Operating Voltage 3.3, 12 V
Substrate Material N-epitaxy on P-sub, retrograde wells
Drawn Transistor Length 0.35 µm
Gate Oxide Thickness 7/~30 nm
Contact/Via Size 0.4 µm
Contacted Gate Pitch 1.3 µm
Top Metal Thickness 845 nm
Metal Pitch
   Metal 1 1.0 µm
   Metal 2 1.1 µm
   Top Metal 1.4 µm
Metal Composition AI/Cu
Isolation LOCOS
ILD Planarization PSG/PETEOS/ +CMP
IMD Planarization PETEOS+CMP

Sample Process Options

  Mask Layers
3 metal, 25 V HIPO, OTP 19
4 metal, 25 V HIPO, OTP 21
5 metal, 25 V HIPO, OTP 23
Thick oxide +3
Poly Poly Cap +1
MIMC +1

Device Characteristics

(All Values Typical at 25°C)

Low-Voltage Transistors

NMOS Transistor Typical
Value
Unit
Vt (10/0.35, linear extrapolated) 0.59 V
Vmax=Vbd 3.6 V
IDS (10/0.35, Vds=Vgs=3.3 V) 530 µA/µm
PMOS Transistor
Vt (10/0.35, linear extrapolated) -0.57 V
Vmax=Vbd -3.6 V
IDS
(10/0.35, Vds=Vgs=3.3 V)
-250 µA/µm

Thick Oxide High-Voltage Transistors (Extended Drain)

Floating NDMOS (18 V) Typical
Value
Unit
Vt (Vd=0.1 V) 1.3 V
Vbd (Vgs = 0) 31 V
Vgsmax 12 V
Vdsmax, SOA* (Vgs=Vgsmax, full lifetime) 12 V
Vdsmax (Vgs full lifetime) 18 V
Ron*Area (Vg=18 V, Vd=0.5 V) 27 mΩ*mm²
Ids 260 µA/µm
Floating PDMOS (18 V)
Vt (Vd=0.1 V) -1.3 V
Vbd (Vgs = 0) -35 V
Vgsmax -12 V
Vdsmax, SOA* (Vgs=Vgsmax, full lifetime) -12 V
Vdsmax (Vgs full lifetime) -18 V
Ron*Area (Vg=18 V, Vd=0.5 V) 71 mΩ*mm²
Ids -110 µA/µm
* Symmetric Device Available.

Diodes

Zener Diode:
PBZD (a=2 μm)
Typical
Value
Unit
Vz @ 100 µA 4.6 V
Rzener 45 Ω
Ileak @ Vz=0.5 V 200 nA
Zapping Zener Diode for OTP: UZZD
Vz @ 1 µA 1.5 V
Vbd @ 10 mA 4.5 V
Ileak @ Vz= 1 V 1.4 V
Poly Diode for Gate Clamping: POLYD
Vreverse @ Ia=10 µA 6.8 V
Schottky    
Vbd @ 1 µA 15 V
ILeak @ 5.5 <20 nA

Capacitors (Parameter @ 25°C)

Type (Maximum Voltage) Typical
Value
Unit
Metal2/Metal2.5 Plate:
MIMC (3.6V)
1.5 fF/µm²
Poly Poly Capacitor (13.2V) 1 fF/µm²

Resistors (Parameter @ 25°C)

Resistor Type Typical
Value
Unit
High-Resistance Poly: HIPO 975 Ω/square
Salicided P+ Poly: LOPOR 2.4 Ω/square
Unsalicided P+ Poly: PPOLR 240 Ω/square
Unsalicided P+ in Mwell 64 Ω/square
Unsalicided N+ Poly: NPOLR 292 Ω/square
Unsalicided N+ in Pwell 47.5 Ω/square
Nwell under FOX (field oxide) 958 Ω/square
Nwell in AA (active area) 800 Ω/square
Pwell in AA (active area) 1755 Ω/square

 

Thin Oxide High-Voltage Transistors (Extended Drain)

Floating NDMOS Typical
Value
Unit
Vt (Vd=0.1 V) 0.6 V
Vbd (Vgs = 0) 31 V
Vgsmax 3.6 V
Vdsmax, SOA* (Vgs=Vgsmax, full lifetime) 12 V
Vdsmax (Vgs full lifetime) 18 V
Ron*Area (Vg=3.3 V, Vd=0.5 V) 35 mΩ*mm²
Ids 280 µA/µm
Floating PDMOS
Vt (Vd=0.1 V) -0.6 V
Vbd (Vgs = 0) -28 V
Vgsmax -3.6 V
Vdsmax, SOA* (Vgs=Vgsmax, full lifetime) -12 V
Vdsmax (Vgs full lifetime) -18 V
Ron*Area (Vg=3.3 V, Vd=0.5 V) 75 mΩ*mm²
Ids -121.5 µA/µm

Thick Oxide High-Voltage Transistors (Nested Drain)

Floating NDMOS (12 V) Typical
Value
Unit
Vt (Vd=0.1 V) 1.3 V
Vbd (Vgs = 0) 21 V
Vgsmax 12 V
Vdsmax, SOA* (Vgs=Vgsmax, full lifetime) 8 V
Vdsmax (Vgs full lifetime) 12 V
Ron*Area (Vg=18 V, Vd=0.5 V) 15 mΩ*mm²
Ids 260 µA/µm
Floating PDMOS (12 V)
Vt (Vd=0.1 V) -1.4 V
Vbd (Vgs = 0) -21 V
Vgsmax -12 V
Vdsmax, SOA* (Vgs=Vgsmax, full lifetime) -8 V
Vdsmax (Vgs full lifetime) -12 V
Ron*Area (Vg=18 V, Vd=0.5 V) 75 mΩ*mm²
Ids -92 µA/µm
* Symmetric Device Available.

Bipolar Transistors

Bipolar Transistors Vertical Low-Voltage NPN (Parameter, E_area=3.61 µm²) Typical
Value
Unit
Hfe @ Ic=10 µA 17.3 -
Bvceo @ Ic=1 µA 20.5 V
Bvces @ Ic=1 µA 20.9 V
Vertical Low-Voltage PNP Transistor
(Parameter, E_area=0.64 µm²)
Hfe @ Ic=10 µA 20.1 -
Bvceo @ Ic=1 µA -14.5 V
Bvces @ Ic=1 µA -19.5 V

 


Libraries
(All values typical at 25°C)

Standard Cell
Ultra High Density Core Cell
pn sum: 2.0
Area of 2-input nand (na21): 38.88 µm²
Gate density (na21 @ 100% utilization): 25.72 k gates/mm²
Scan Flop density (scan flops @100% utilization): 3.215 k ff/mm²
Average power (@ 3.3 V): 0.2929 µW/MHz/gate
Core Cell Level Shifters
Unidirectional: 1 cell optimized for speed, pad high to core low

Standard I/O
Fat Pad I/O Library (for core limited designs)
172.80 µm min in-line pad pitch
180.00 µm pad height
Tall Pad I/O Library (for pad limited designs)
86 µm min in-line pad pitch
322.50 µm pad height

Memory Options

RAM
Synchronous High Speed/High Temp Single Port SRAM
Minimum: 16 words x 2 bits
Maximum: 128 k bits
(ie: 16 k words x 8 bits, 8 k words x 16 bits, …)
Synchronous High Speed/High Temp Dual Port SRAM
Minimum: 16 words x 2 bits
Maximum: 128 k bits
(ie: 16 k words x 8 bits, 8 k words x 16 bits, …)
Low Power Synchronous SRAM
Minimum: 64 words x 4 bits
Maximum: 128 k bits
(ie: 16 k words x 8 bits, 8 k words x 16 bits, …)

ROM
Synchronous High Speed/High Temp Diffusion ROM
Minimum: 256 words x 4 bits
Maximum: 512 k bits
(ie: 64 k words x 8 bits, 32 k words x 16 bits, …)
Low Power Synchronous Via Programmable ROM
Minimum: 256 words x 4 bits
Maximum: 512 k bits
(ie: 64 k words x 8 bits, 32 k words x 16 bits, …)

Non-Volatile Memory
OTP – One Time Programmable
Fuse: Zener Diode optimized for low power zapping
Both Serial and Parallel Output Capability
In field programming available
Vector: Up to 320 bits
EEPROM – No additional masks or processing steps
Differential Bit Cell (Redundancy for High Reliability)
2ms Write/Erase
Array: up to 8 k bits (128x64), Vector: 8 to 64 bits (1x8 to 1x64)
Internal Charge Pump provided
Memory Failure Rate: <10ppm, <1ppm with ECC (128x56)
Automotive qualification AEC-Q100

CAD Tool Compatibility

Digital Design
Synopsys Design Compiler
Cadence Verilog

Analog Design
Cadence DFII (4.4.6)
Cadence Spectre

Place and Route
Synopsys Apollo
Cadence Silicon Ensemble

Physical Verification
Mentor Graphics Calibre

For more information please contact your local sales support at www.onsemi.com