Microelectronic package and method of manufacturing same
US8035218B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2009 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Nov 3, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/15311
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A microelectronic package includes a first substrate (120) having a first surface area (125) and a second substrate (130) having a second surface area (135). The first substrate includes a first set of interconnects (126) having a first pitch (127) at a first surface (121) and a second set of interconnects (128) having a second pitch (129) at a second surface (222). The second substrate is coupled to the first substrate using the second set of interconnects and includes a third set of interconnects (236) having a third pitch (237) and internal electrically conductive layers (233, 234) connected to each other with a microvia (240). The first pitch is smaller than the second pitch, the second pitch is smaller than the third pitch, and the first surface area is smaller than the second surface area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.