Integrated circuit packaging system with trace protection layer and method of manufacture thereof
AssigneeSTATS ChipPAC, Ltd.
InventorsByung Tai Do, Arnel Senosa Trasporto, Linda Pei Ee Chua, Henry Descalzo Bathan
Life of this patent
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Abstract
An integrated circuit packaging system and method of manufacture thereof including: providing a pre-plated leadframe having a contact protrusion and a protective pad on the contact protrusion; forming a contact pad and traces by etching the pre-plated leadframe; applying a trace protection layer on the contact pad, the traces, and the protective pad; removing the protective pad and a portion of the trace protection layer for exposing the contact pad; and depositing an external connector directly on a surface of the contact pad.
Claims20
A method of manufacture of an integrated circuit packaging system comprising:
- providing a pre-plated leadframe having a contact protrusion and a protective pad on the contact protrusion;
- forming a contact pad and traces by etching the pre-plated leadframe;
- applying a trace protection layer on the contact pad, the traces, and the protective pad;
- removing the protective pad and a portion of the trace protection layer for exposing a surface of the contact pad;
- and
- depositing an external connector directly on the surface of the contact pad.
A method of manufacture of an integrated circuit packaging system comprising:
- providing a pre-plated leadframe having a contact protrusion, a protective pad on the contact protrusion, and bond structures opposite the protective pad;
- connecting an integrated circuit die to the bond structures;
- depositing an encapsulation on the integrated circuit die and the bond structures of the pre-plated leadframe;
- forming a contact pad and traces by etching the pre-plated leadframe;
- applying a trace protection layer on the contact pad, the traces, and the protective pad;
- removing the protective pad and a portion of the trace protection layer for exposing the contact pad using a backgrinding tool;
- forming a recess in the trace protection layer by etching the surface of the contact pad to a recess distance from an exposed surface of the trace protection layer the surface of the contact pad only exposed in the recess;
- and
- depositing an external connector directly on a surface of the contact pad.
An integrated circuit packaging system comprising:
- an integrated circuit die;
- a contact pad connected to the integrated circuit die;
- traces connected to the contact pad;
- a trace protection layer on the contact pad and the traces, the trace protection layer having a recess with an external surface of the contact pad only exposed in the recess and the contact pad spaced a recess distance away from an exposed surface of the trace protection layer;
- and
- an external connector directly on the external surface of the contact pad.
Dependencies are inferred from the claim text.