Chip on film type semiconductor package
View Patent ↗A chip on film type semiconductor package includes a film, a plurality of leads formed over the film, a chip formed over the plurality of leads, an under-fill layer filled an space between the chip and the plurality of leads and an insulating heating sheet formed on an opposite side of the film contacting to the plurality of leads, wherein the insulating heating sheet is formed of a compound based on a glass fiber.
1. A chip on film type semiconductor package, comprising:
a film;
a plurality of leads formed beneath the film; a chip coupled to one ends of the leads;
an under-fill layer filled between the chip and the plurality of leads; and
an insulating heating sheet formed on over the film and comprising a glass fiber inserted between silicon paste layers, wherein the insulating heating sheet has a thermal resistance less than approximately 0.2° C/W.
2. The chip on film type semiconductor package of claim 1 , wherein the insulating heating sheet has a form of a lattice structure.
3. The chip on film type semiconductor package of claim 1 , wherein the insulating heating sheet includes a compound including a silicon rubber, a boron nitride and the glass fiber.
4. The chip on film type semiconductor package of claim 3 , wherein a volume content of the silicon rubber is in a range of approximately 19% to approximately 24%, a volume content of the boron nitride is in a range of approximately 65% to approximately 71% and a volume content of the glass fiber is less than approximately 10%.
5. The chip on film type semiconductor package of claim 1 , wherein the insulating heating sheet has a thickness in a range of approximately 100 μm to approximately 200 μm.
6. The chip on film type semiconductor package of claim 1 , wherein the insulating heating sheet is attached to the film by an adhesive member.
7. The chip on film type semiconductor package of claim 1 , wherein the chip includes a driver IC chip.
8. The chip on film type semiconductor package of claim 1 , wherein the under-fill layer includes a liquid resin.