Wire-bonding method and apparatus
First Claim
1. A wire-bonding method for a semiconductor device designed in accordance with a CAD system, said method comprising:
- a step of extracting coordinate values of a semiconductor pellet from said Computer Aided Design system;
a step of extracting coordinate values of leads from said Computer Aided Design system;
a step of extracting wiring information for bonding from said Computer Aided Design system;
a step of preparing bonding data having positional coordinates for bonding on the basis of (1) said coordinate values of said pellet, (2) said coordinate values of said leads, and (3) said wiring information;
a step of inputting said bonding data to a bonding unit; and
a step of driving said bonding unit on the basis of said bonding data.
1 Assignment
0 Petitions
Accused Products
Abstract
Wire-bonding of a semiconductor device designed in accordance with the CAD system is implemented on the basis of bonding data obtained by making use of the design data in the CAD system For the design data in the CAD system, coordinate data of the bonding pads and the lead frames and wiring information therebetween are used. Since ordinarily the coordinate system in the CAD system and the coordinate system in the wire-bonding apparatus are not equal to each other, coordinate transformation is applied to the bonding data obtained from the CAD system. The data thus transformed is delivered to the bonding unit. Since there is employed a scheme to utilize the design data in the CAD system, the necessity of inputting bonding data by an operator is eliminated, thus making it possible to carry out bonding work free from an error in a short time.
-
Citations
18 Claims
-
1. A wire-bonding method for a semiconductor device designed in accordance with a CAD system, said method comprising:
-
a step of extracting coordinate values of a semiconductor pellet from said Computer Aided Design system; a step of extracting coordinate values of leads from said Computer Aided Design system; a step of extracting wiring information for bonding from said Computer Aided Design system; a step of preparing bonding data having positional coordinates for bonding on the basis of (1) said coordinate values of said pellet, (2) said coordinate values of said leads, and (3) said wiring information; a step of inputting said bonding data to a bonding unit; and a step of driving said bonding unit on the basis of said bonding data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A wire-bonding method for a semiconductor device designed in accordance with a Computer Aided Design system, said method comprising:
-
a step of extracting coordinate values of a semiconductor pellet from said Computer Aided Design system being represented in a first coordinate system used in said Computer Aided Design system; a step of extracting coordinate values of leads from said Computer Aided Design system which are represented in said first coordinate system; a step of extracting wiring information for bonding from said Computer Aided Design system; a step of preparing bonding data having positional coordinates for bonding on the basis of (1) said coordinate values of said pellet, (2) said coordinate values of said leads and (3) said wiring information; a step of inputting said bonding data to a bonding unit; a step of transforming said input bonding data to corresponding data in a second coordinate system used in said bonding unit; and a step of driving said bonding unit on the basis of said bonding data. - View Dependent Claims (12, 13, 14)
-
-
15. An apparatus for implementing wire-bonding to a semiconductor device designed using a Computer Aided Design System which is used for designing a pattern on a semiconductor pellet and a Computer Aided Design System which is used for designing a pattern on a lead frame on the basis of wiring information input thereto, said semiconductor pellet having bonding pads and inner leads thereon, said wire-bonding apparatus comprising:
-
a first memory unit for storing design data with respect to the pattern on a semiconductor pellet in said Computer Aided Design System used for designing a pattern on said semiconductor pellet; a second memory unit for storing design data with respect to the pattern on a lead frame in said Computer Aided Design System used for designing a pattern on said lead frame; a third memory unit for storing said wiring information; a data extraction unit for preparing bonding data having positional information on the basis of said data from said first, second and third memory units; a coordinate transformation unit for transforming a coordinate system of said bonding data prepared in said data extraction unit; and a unit for carrying out wire-bonding on the basis of said bonding data having been transformed by said coordinate transformation unit. - View Dependent Claims (16, 17, 18)
-
Specification