Input/output pins for chip-embedded substrate
US9966341B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2016 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Oct 31, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/13091
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Input/output pins for a chip-embedded substrate may be fabricated by applying a contact-distinct volume of solder to at least two contacts that are recessed within the chip-embedded substrate, temperature-cycling the chip-embedded substrate to induce solder reflow and define an input/output pin for each one of the at least two contacts, and machining the input/output pin for each one of the at least two contacts to extend exposed from the chip-embedded substrate to a common height within specification tolerance. Such a technique represents a paradigm shift in that the manufacturer of the chip-embedded substrate, as opposed to the immediate customer of the manufacturer, may assume the burden of quality control with respect to minimizing unintended solder void trapping under the input/output pins, thereby reinforcing existing customer loyalty and potentially attracting new customers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.