CN104750887A

CN104750887A - Method for generating parameterized unit in modularized mode

Info

Publication number: CN104750887A
Application number: CN201310735952.3A
Authority: CN
Inventors: 张效通; 肖薇; 谢光益; 李起宏
Original assignee: Beijing CEC Huada Electronic Design Co Ltd
Current assignee: Beijing CEC Huada Electronic Design Co Ltd
Priority date: 2013-12-29
Filing date: 2013-12-29
Publication date: 2015-07-01

Abstract

The invention discloses a method for automatically generating a parameterized unit and a script file through interface editing. A layout device of variable parameters is generated by compiling a parameterized unit script. According to the method for automatically generating the parameterized unit and the script file through the interface editing, a tool can automatically generate the script file of the parameterized unit by filling a required layer of the layout device of the variable parameters in an interface, selecting a parameter variation form, and filling design rule information and the like of the device layer. The parameterized unit script adopts a command supported by the EDA (electronic design automation) tool, and can correctly compile the device which conforms to a design rule. When a user modifies on the interface, a new script file can be immediately generated, a generated parameterized unit script can be conveniently maintained in real time, and therefore traditional manual writing time can be greatly saved, and a client can be liberated from heavy script writing and maintenance.

Description

A kind of templating produces the method for parameterized units

Technical field

A kind of method that templating produces parameterized units (Variable-Parameterized Cell) defines kit interface and parameterized units automatically produces engine and adds the method that certain design rule (Design rule) produces the script file of parameterized units and corresponding unit automatically.The invention belongs to integrated circuit CAD (Integrated Circuit/Computer Aided Design) field, especially in IC cad tools about technical field that PDK (Process Design Kit) generates.

Background technology

PDK is called for short technological design support package, is the communication bridge of chip production company (Foundry), EDA (Electronic Design Automatic) company and chip design company.When the semiconductor technology that chip design company needs employing chip production factory new, be first exactly need a set of PDK, PDK to be in most cases that chip production factory completes under the assistance of EDA company.PDK is the foundation stone that design corporation is used for designing, also be the factor of flow success or failure key, and the Vcell Script of Vcell and its correspondence is the core of PDK exploitation, also be part the most complicated and consuming time in PDK exploitation, in general Vcell exploitation can account for the 70-80% of PDK development time, and the exploitation of parameterized units and its corresponding script file simultaneously determines application and the quality of PDK.

Summary of the invention

The present invention discloses a kind of implementation method being produced parameterized units storehouse and script file by interface operation, the method completes number of parameters in parameterized units (CDF-Component Description Format) and default value by operation tool interface, the selection of parameterized units required device level, the configuration of logical process stratification classification and component graphics version, automatic reading and the middle design rule essential information arranged of generation technical papers (Tech), the script of automatic generation parameterized units also can be compiled into the CDF parameter of parameterized units storehouse and standard, accelerate development time and the development efficiency of parameterized units and CDF in PDK greatly.In tools interfaces, do scope to each input parameter, the multiple inspection such as validity, pole greatly reduces parameters input mistake, finds wrong Timeliness coverage and reports an error, and improves input efficiency.The parameterized units produced by interface operation can be upgraded by real time inspection in domain (Layout) editor, adopt the method that client can be made from complexity, loaded down with trivial details, free in Scripting Edition consuming time and attended operation, it also avoid simultaneously and write the not rigorous and lack of standardization to designing the risk brought of script file, greatly improve the ease for use of instrument and there is high economic worth.The present invention also completes the method for the treatment of variable in the script command registered in eda tool further.

Accompanying drawing explanation

Fig. 1 produces parameterized units process flow diagram automatically

Fig. 2 produces parameterized units instrument start-up display interface automatically

Fig. 3 selects and revises CDF default parameter value

Level needed for Fig. 4 Selection parameter unit

The hierarchical structure of Fig. 5 configuration parameter unit

Fig. 6 Selection parameter unit figure changing pattern

The technological parameter of Fig. 7 editing parameter unit

Fig. 8 compiles the CDF value and parameterized units storehouse that generate parameterized units

Fig. 9 is exampleization parameterized units in domain instrument

Figure 10 merges (abut) operation to the parameterized units generated

concrete implementation step:

Operating process step is as follows:

(1) first start initial interface, select the type of the parameterized units that will arrange, name.

(2) select name be the Transistor of nch exemplarily, the CDF option required for selection and key in acquiescence CDF value.

(3) layer required for nch is selected in process, and the topological structure of other level, and select the changing pattern of figure.

(4) process rule of input definition needed for nch.

(5) CDF parameter and the script file of nch device can be produced after above step completes, and it is compiled.

(6) compiling correct after can carry out the operations such as the example of multiple parameter and merging to a device in domain instrument.

Claims

1. templating produces a method for parameterized units, and we require that protected right characteristic is as follows:

(1) by producing the method for parameterized units script after interface editing, the method comprises can the parameter of receiving parameter unit, technique level, wherein of process rule, the final script file producing parameterized units;

(2) parameter inputted in interface, technique level, process rule automatically can extract from technique, and does validity check;

(3) the parameterized units script produced by feature (1) can be programmed to the method for parameterized units;

(4) the parameterized units script produced by feature (1) can be edited by client and can by eda tool identification;

(5) at least can by the order of eda tool identification containing one in the script file produced by feature (1);

(6) script produced by feature (1) contains technique level, the topological structure of level, the variation characteristic of level, wherein one in process rule etc.;

(7) script produced by feature (1) contains CDF parameter, and can produce different parameters unit according to parameter difference;

(8) change by changing optimum configurations the method generating parameterized units storehouse in real time.