Patent · US Active

Single-shot encapsulation

US11171099B2 · kind B2 · utility

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16Claims
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Assignee

Inventors

Key dates

Filing dateJul 29, 2019
Grant dateNov 9, 2021
Priority date
Expiry dateJul 29, 2039

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01L2924/181
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

A semiconductor device includes a semiconductor wafer. A plurality of pillar bumps is formed over the semiconductor wafer. A solder is deposited over the pillar bumps. The semiconductor wafer is singulated into a plurality of semiconductor die after forming the pillar bumps while the semiconductor wafer is on a carrier. An encapsulant is deposited around the semiconductor die and pillar bumps while the semiconductor die remains on the carrier. The encapsulant covers an active surface of the semiconductor die between the pillar bumps.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.