Patent ID: 7012120
Filing Date: 2006-03-14
Classification: C07D,C08G,H01L

Abstract:
1. A method of sealing underfilling between a semiconductor device including a semiconductor chip mounted on a carrier substrate and a circuit board to which said semiconductor device is electrically connected, or a semiconductor chip and a circuit board to which said semiconductor chip is electrically connected, the steps of which comprise: (a) dispensing into the underfilling between the semiconductor device and the circuit board, or the semiconductor chip and the circuit board a composition comprising: (i) from about 10 to about 70 weight precent of a curable resin component, based on the weight of the total composition, wherein from about 25 to about 75 weight percent is a compound having at least one linkage selected from the group consisting of oxiranes and thiiranes, substituted on at least three of the substitutable positions on the oxirane or thiirane carbons, respectively, with an alkyl, alkenyl or aryl substituent having a carbon content of 1 to about twelve carbon atoms, with or without substitution or interruption by one or more heteroatorns or halogens (I); and (ii) a curing agent component selected from the group consisting of anhydride compounds, amine compounds, amide compounds, imidazole compounds, and combinations thereof, provided that the compound I does not include as its sole component an epoxy compound within any of the following formulae [II: wherein each R is independently selected from the group consisting of hydrogen, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, C 1-4 alkoxy, halogen, cyano and nitro, R 1 and R 2 are each independently selected from the group consisting of hydrogen, methyl, ethyl, and propyl, provided that both R 1 and R 2 cannot be hydrogen, and R 3 is independently selected from the group consisting of propyl, and isopropyl, provided at least one of R 3a and R 3b , and at least one of R 3c and R 3d is independently selected from the group consisting of methyl, ethyl, propyl, and isopropyl, and m is 0 or 1] wherein each R is independently selected from the group consisting of hydrogen, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tertbutyl, C 1-4 alkoxy, halogens, cyano and nitro, and phenyl, and R 3 and R 4 together form an epoxy group, and R 1 and R 2 are each independently selected from the group consisting of hydrogen, methyl, ethyl, propyl, and phenyl, except that at least one of R 1 and R 2 is not hydrogen, and n is 0 and p is 0 and m is 0 or 1; wherein R, R 1 , R 2 , R 3 , and R 4 are as defined above and m is 1 and p is 1 and n is 1 or p is 0 and m is 0 and n is 1, and the compounds are symmetrical; wherein R is defined as above and the compounds are symmetrical; and wherein R, R 1 and R 2 are defined as above and c and d are both 1 or c and d are both 0 and the compounds are symmetrical; and (b) exposing the composition as so dispensed to conditions appropriate to cause the composition to form a reaction product.