Tape carrier used in tab system
US5153708A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 11, 1991 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Sep 11, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/48247
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A tape carrier used for assemblage of integrated circuit chips based on a TAB system, comprises a plurality of square frames, each including a substantially square opening for defining a position of an integrated circuit chip to be bonded to the frame, the square opening being formed within a mold area of the frame on which, when the integrated circuit chip mounted at the square opening and bonded to the frame is resin-molded, the resin-molded integrated circuit chip extends. At least two substantially rectangular first openings are formed within the mold area at a space between the square opening and an outer periphery of the mold area. A plurality of lead groups, extend from an inside of the square opening to positions adjacent to a periphery of the frame by crossing one of the first openings. At least one second opening is formed at a space between adjacent two of the first openings, and such that none of the leads extend across the second opening, thereby allowing a resin to flow therethrough in a process of resin-molding the integrated circuit chip mounted at the square opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.