Porting Analog Circuit Designs
A computer-based method of converting an analog integrated circuit design from a source technology to a target technology, by providing a computer readable source schematic file and a computer readable source layout file for the analog integrated circuit design in the source technology, providing a computer readable technology transfer file that includes conversion tables between properties of the source technology and properties of the target technology, converting the source schematic file in the source technology to a target schematic file in the target technology with the computer using the technology transfer file, and converting the source layout file in the source technology to a target layout file in the target technology with the computer using the technology transfer file.
1 . A computer-based method of converting an analog integrated circuit design from a source technology to a target technology, the method comprising the steps of:
providing a computer readable source schematic file and a computer readable source layout file for the analog integrated circuit design in the source technology,
providing a computer readable technology transfer file that includes conversion tables between properties of the source technology and properties of the target technology,
with the computer, converting the source schematic file in the source technology to a target schematic file in the target technology using the technology transfer file, and
with the computer, converting the source layout file in the source technology to a target layout file in the target technology using the technology transfer file.
2 . The computer-based method of claim 1 , wherein the step of converting the source schematic file to the target schematic file comprises:
converting source technology device names in the source schematic file to target technology device names in the target schematic file using the technology transfer file, and
converting source device properties in the source schematic file to target device properties in the target schematic file using the technology transfer file.
3 . The computer-based method of claim 1 , wherein the step of converting the source layout file to the target layout file comprises selectively receiving as input and providing as output one of polygon based layout files, parameterized cell based layout files, and standard cell based layout files.
4 . The computer-based method of claim 1 , wherein the technology transfer file comprises:
a device name conversion table for converting device names in the source technology to device names in the target technology, and
a property conversion table for converting functional device characteristics of the analog integrated circuit design in the source technology to functional device characteristics in the target technology that are associated with physical device characteristics in the target technology.
5 . The computer-based method of claim 4 , wherein the functional device characteristics include at least one of current drain-to-source versus voltage drain-to-source curves, positive power voltage scaling, transconductance, output conductance, voltage threshold, delay, leakage, capacitance, and resistance.
6 . The computer-based method of claim 4 , wherein the physical device characteristics include at least one of device length and device width.
7 . The computer-based method of claim 1 , wherein the source technology comprises a source node and a source foundry and the target technology comprises a target node and a target foundry, and at least one of the source node and the target node, and the source foundry and the target foundry are different between the source technology and the target technology.
8 . A technology transfer file disposed on a computer-readable medium, the technology transfer file for converting an analog integrated circuit design from a source technology to a target technology, the technology transfer file comprising:
a device name conversion table for converting device names in the source technology to device names in the target technology, and
a property conversion table for converting functional device characteristics of the analog integrated circuit design in the source technology to functional device characteristics in the target technology that are associated with physical device characteristics in the target technology.
9 . The technology transfer file of claim 8 , wherein the source technology comprises a source node and a source foundry and the target technology comprises a target node and a target foundry, and at least one of the source node and the target node, and the source foundry and the target foundry are different between the source technology and the target technology.
10 . The technology transfer file of claim 8 , wherein the functional device characteristics include at least one of current drain-to-source versus voltage drain-to-source curves, positive power voltage scaling, transconductance, output conductance, voltage threshold, delay, leakage, capacitance, and resistance.
11 . The technology transfer file of claim 8 , wherein the physical device characteristics include at least one of device length and device width.
12 . A computer-based apparatus for converting an analog integrated circuit design from a source technology to a target technology, the apparatus comprising:
an input for receiving and a memory for storing,
a source schematic file and a source layout file for the analog integrated circuit design in the source technology, and
a technology transfer file that includes conversion tables between properties of the source technology and properties of the target technology, and
logic elements for,
converting the source schematic file in the source technology to a target schematic file in the target technology using the technology transfer file, and
converting the source layout file in the source technology to a target layout file in the target technology using the technology transfer file.
13 . The apparatus of claim 12 , wherein the logic elements for converting the source schematic file to the target schematic file:
convert source technology device names in the source schematic file to target technology device names in the target schematic file using the technology transfer file, and
convert source device properties in the source schematic file to target device properties in the target schematic file using the technology transfer file.
14 . The apparatus of claim 12 , wherein the logic elements for converting the source layout file to the target layout file selectively receive as input and provide as output one of polygon based layout files, parameterized cell based layout files, and standard cell based layout files.
15 . The apparatus of claim 12 , wherein the technology transfer file comprises:
a device name conversion table for converting device names in the source technology to device names in the target technology, and
a property conversion table for converting functional device characteristics of the analog integrated circuit design in the source technology to functional device characteristics in the target technology that are associated with physical device characteristics in the target technology.
16 . The apparatus of claim 15 , wherein the functional device characteristics include at least one of current drain-to-source versus voltage drain-to-source curves, positive power voltage scaling, transconductance, output conductance, voltage threshold, delay, leakage, capacitance, and resistance.
17 . The apparatus of claim 15 , wherein the physical device characteristics include at least one of device length and device width.
18 . The apparatus of claim 12 , wherein the source technology comprises a source node and a source foundry and the target technology comprises a target node and a target foundry, and at least one of the source node and the target node, and the source foundry and the target foundry are different between the source technology and the target technology.