Patent ID: 7087133
Filing Date: 2006-08-08
Classification: H01L,Y10T

Abstract:
1. A method of attaching portions of adhesively coated material to a plurality of sites on a leadframe of a plurality of leadframes connected by removable edges, the method comprising: providing a source of an adhesively coated material; providing a leadframe of the plurality of leadframes connected by removable edges, the leadframe having a first site for attachment of a first portion of the adhesively coated material and a second site for attachment of a second portion of the adhesively coated material; providing an application apparatus having a first applicator and a second applicator, wherein a displacement of the application apparatus operates to simultaneously displace the first applicator toward a first location and the second applicator toward a second location, the first applicator being constructed to remove a first portion of the adhesively coated material from the source of adhesively coated material and apply the first portion to the first site, the second applicator being constructed to remove a second portion of the adhesively coated material from the source of adhesively coated material and apply the second portion to the second site; providing an indexing apparatus for positioning the leadframe in a first condition such that the first site of the leadframe is situated at the first location, the indexing apparatus being further adapted to position the leadframe in a second condition such that the second site is situated at the second location; operating the indexing apparatus to displace the leadframe to the first condition; operating the source of the adhesively coated material to selectively supply the first applicator with a quantity of the adhesively coated material while withholding a supply of the adhesively coated material from the second applicator; displacing the application apparatus such that the first applicator is urged toward the first location thereby causing the first applicator to remove the first portion of the adhesively coated material from the source of adhesively coated material and apply the first portion to the first site while the second applicator is urged toward the second site without removing the second portion of the adhesively coated material from the source of adhesively coated material or applying the second portion to the second site; operating the indexing apparatus to displace the leadframe to the second condition; operating the source of the adhesively coated material to selectively supply the second applicator with a quantity of the adhesively coated material while withholding a supply of the adhesively coated material from the first applicator; and displacing the application apparatus such that the second applicator is urged toward the second location thereby causing the second applicator to remove the second portion of the adhesively coated material from the source of adhesively coated material and apply the second portion to the second site while the first applicator is urged toward the first site without removing another portion of adhesively coated material from the source of adhesively coated material or applying the another portion to the first site.