Chip carrier film, method of manufacturing the chip carrier film and liquid crystal display using the chip carrier film
View Patent ↗A chip carrier film comprising a metal wiring formed on a surface of a base film, a first insulating film covering the metal wiring excluding a semiconductor chip connecting pad portion and a terminal connecting pad portion, a semiconductor chip connected to the semiconductor chip connecting pad portion of the metal wiring and mounted on the base film, and a second insulating film formed on a back face of the base film and having a different coefficient of curing shrinkage from that of the first insulating film. It is possible to obtain a chip carrier film capable of preventing the suspension of the base film from being generated by the self weight of the semiconductor chip when holding the base film by the delivery device and of carrying out mounting without a hindrance.
1. A method of manufacturing a chip carrier film comprising:
etching a metal film formed on a surface of a base film to form a metal wiring;
coating a first insulating film to cover the metal wiring;
mounting a semiconductor chip on the base film to be connected to the metal wiring;
coating a back face of the base film with a second insulating film having a different coefficient of curing shrinkage from that of the first insulating film; and
curing the first and second insulating films.
2. The method of claim 1 , wherein the second insulating film has a higher coefficient of curing shrinkage than that of the first insulating film, and the first and second insulating films are cured.
3. The method of claim 2 , wherein the first insulating film and the second insulating film are cured by heating.
4. The method of claim 1 , wherein the first insulating film and the second insulating film are cured by heating.