PATENT CLAIM ANALYSIS

Application Number: 15901631
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["257", "676000"]

Abstract:
A packaged semiconductor die includes a semiconductor die coupled to a die pad. The semiconductor die has a front side containing copper leads, a copper seed layer coupled to the copper leads, and a nickel alloy coating coupled to the copper seed layer. The nickel alloy includes tungsten and cerium (NiWCe). The packaged semiconductor die may also include wire bonds coupled between leads of a lead frame and the copper leads of the semiconductor die. In addition, the packaged semiconductor die may be encapsulated in molding compound. A method for fabricating a packaged semiconductor die. The method includes forming a copper seed layer over the copper leads of the semiconductor die. In addition, the method includes coating the copper seed layer with a nickel alloy. The method also includes singulating the semiconductor wafer to create individual semiconductor die and placing the semiconductor die onto a die pad of a lead frame. In addition the method includes wire bonding the leads of a lead frame to the copper leads of the semiconductor die and then encapsulating the die in molding compound.

Claim (Index 8):
A method for fabricating a packaged semiconductor die, comprising:\n providing a fully processed semiconductor wafer that includes more than one semiconductor die, the semiconductor wafer having a front side containing copper leads of said more than one semiconductor die and a back side that is opposite to said front side; etching selected portions of a protective overcoat layer from said fully processed semiconductor wafer to expose a top surface of said copper leads; forming a copper seed layer over said front side of said semiconductor wafer; coating said front side of said semiconductor wafer with a nickel alloy that includes tungsten and cerium (NiWCe); removing said copper seed and said nickel alloy located over said protective overcoat; singulating said semiconductor wafer to create said semiconductor die having a front side containing said leads of said semiconductor die and a back side that is opposite to said front side; attaching said back side of said semiconductor die onto a die pad; wire bonding said leads of said semiconductor die to leads of a lead frame; and encapsulating said semiconductor die, said wire bonds, and portions of said die pad and said leads of said lead frame in molding compound.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 88.0
- Lexical Diversity: 3.21311
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13798980', '15892485', '13535052', '10008704', '15899114']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9040779074208496
- 35 USC 102 Novelty (BERT): 0.4670225423940124
- Combined Prediction Score: 0.8603723709181658
- Mean Citation Score: 136.390716
- Max Citation Score: 142.05536999999995
- Similarity Product: 103.92514969952876

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test