Balltape structure for tape automated bonding, multilayer packaging, universal chip interconnection and energy beam processes for manufacturing balltape
US4814855A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1986 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Apr 29, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/4092
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Automated bonding of chips to tape and formation of bonding structures on Tape Automated Bonding (TAB) packaging structures are provided with bonding balls on the ends of beams leads of the TAB tape. Also balltape bonding balls are aligned on stacked TAB sheets and bonded together to form via interconnections through stacked balltape balls in multilayer, electronic packaging structures. Interconnection structures are provided for a universal chip connection laminate which can be applied between a chip and an MLC package. Area TAB tape, which comprises a modification of TAB tape provides balltape TAB connections by means of balltape bonds to areas within the interior of a chip whose leads are bonded in a TAB tape arrangement to the Inner Lead Bonds of the area tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.