Invention Grant
- Patent Title: Ink printed wire bonding
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Application No.: US15335331Application Date: 2016-10-26
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Publication No.: US09859256B1Publication Date: 2018-01-02
- Inventor: Federico Giovanni Ziglioli
- Applicant: STMICROELECTRONICS S.R.L.
- Applicant Address: IT Agrate Brianza
- Assignee: STMICROELECTRONICS S.R.L.
- Current Assignee: STMICROELECTRONICS S.R.L.
- Current Assignee Address: IT Agrate Brianza
- Agency: Seed Intellectual Property Law Group LLP
- Main IPC: H01L25/065
- IPC: H01L25/065 ; H01L23/00 ; H01L23/31 ; H01L25/00 ; H01L21/56

Abstract:
An integrated circuit package with improved reliability and methods for creating the same are disclosed. More specifically, integrated circuit packages are created using one or more sacrificial layers that provide support for ink printed wires prior to package processing, but are removed during package processing. Once each of the sacrificial layers is removed, molding compound is placed around each ink printed wire, which may have a substantially rectangular cross section that can vary in dimension along a length of a given wire. While substantially surrounding each wire in and of itself improves reliability, removing non-conductive paste, fillets, or other adhesive materials also minimizes adhesion issues between the molding compound and those materials, which increases the bond of the molding compound to the package and its components. The net result is a more reliable integrated circuit package that is less susceptible to internal cracking and wire damage.
Information query
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