PATENT CLAIM ANALYSIS

Application Number: 15883487
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["257", "774000"]

Abstract:
A method for making and a semiconductor device comprises a silicon die including a metal contact region and, at least one passivation layer covering the semiconductor die and patterned such as to form an opening to the metal contact region of the semiconductor die. A continuous part of a contact layer comprises a refractory metal, and overlaps and completely covers the opening in the at least one passivation layer to contact the metal contact region in the opening and adhere to the at least one passivation layer along the entire edge of the continuous part. The contact layer comprises at least an adhesion layer and at least a diffusion barrier layer. A noble metal layer is arranged over the contact layer and completely covers the continuous part to adhere to the at least one passivation layer around the edge of the continuous part.

Claim (Index 1):
A method for fabricating a semiconductor device for use in harsh media, the method comprising:\n providing a semiconductor die comprising a metal contact region; covering said semiconductor die by at least one passivation layer and patterning the at least one passivation layer such as to form an opening to expose the metal contact region of the semiconductor die; forming a contact layer comprising a refractory metal on said exposed metal contact region, in which said contact layer comprises at least an adhesion layer and at least a diffusion barrier layer; patterning said contact layer such as to define a continuous part of the contact layer over the exposed metal contact region by exposing the at least one passivation layer around the entire edge of the continuous part, in which said continuous part of said contact layer overlaps and completely covers said opening in the at least one passivation layer; and providing a noble metal layer over said contact layer such as to completely cover said continuous part of the contact layer, wherein said noble metal layer furthermore extends over said edge of said continuous part of the contact layer such as to adhere to said exposed at least one passivation layer around the edge of the continuous part; wherein said providing of said noble metal layer comprises sputtering said noble metal on said continuous part of the contact layer and on the exposed at least one passivation layer around the edge of the continuous part such as to establish a mechanical connection by atomic bonding between the sputtered noble metal and the contact layer and between the sputtered noble metal and the at least one passivation layer.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 86.0
- Lexical Diversity: 2.86538
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15882073', '11140770', '10434524', '10144074', '11949785']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.912340522080665
- 35 USC 102 Novelty (BERT): 0.5045849098727064
- Combined Prediction Score: 0.8715649608598691
- Mean Citation Score: 219.02231
- Max Citation Score: 291.07318
- Similarity Product: 238.9292284064745

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test