PATENT CLAIM ANALYSIS

Application Number: 15896078
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["216", "013000"]

Abstract:
A gold-plating etching process for 5G high-frequency signal boards is carried out according to the following steps: the outer dry film, the plug gold-plating, the film removing, and the alkaline etching The alkaline etching solution comprises 100 to 150 g/L. of cupric chloride, 90 to 120 g/L of ammonium chloride, and ammonia. The pH value is 9.6 to 9.8. The ratio of the ammonia and the alkaline etching solution is (550-800):1000. The present invention provides a gold-plating etching process of 5G high-frequency signal boards. The alkaline etching procedure is performed right after gold-plating, eliminating the outer etching process after gold-plating. Costs of the outer film pressing, the exposure, and the development can be saved. The flow rate is improved. Requirements of 5G communication circuit boards are satisfied. That is, the transmission speed of 5G communication high-frequency signal boards of the present invention is fast.

Claim (Index 1):
A gold-plating etching process for 5G communication high-frequency signal boards, wherein the process comprises the following steps:\n outer dry film: performing an opening, window treatment on a circuit and gold-plated areas for a gold-plating; making an entire opening window on an outer layer of the gold-plated areas; plug gold-plating: before the plug, gold-plating, cleaning, drying, and acid-pickling a copper surface to ensure that the copper surface will not be oxidized; during the gold-plating process, performing a nickel-plating at first, and then performing an activation treatment, and then performing a gold-plating; wherein a gold surface is required to be lustrous and not rough after the gold-plating; film removing: removing a film with sodium hydroxide; alkaline etching: using an alkaline etching solution as an etchant during the alkaline etching; wherein during an alkaline etching process, the circuit and the gold-plating areas are under the protection of gold after gold-plating; stripping off dry films in an non-gold-plated areas by the film removing process before the alkaline etching, such that the copper surface is exposed to be etched by the alkaline etching solution; wherein the alkaline etching solution comprises 50-250 g/L of cupric chloride, 70-150 g/L of ammonium chloride, and ammonia; a pH value of alkaline etching solution is 9-10; a temperature of the etching is 50-60\u00b0 C.; a ratio of the ammonia to the alkaline etching solution is (550-800):1000.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 88.0
- Lexical Diversity: 2.16883
- Patent Class: 216.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13394688', '15202549', '12597835', '11924618', '13388752']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7457081979704363
- 35 USC 102 Novelty (BERT): 0.500381345904132
- Combined Prediction Score: 0.7211755127638059
- Mean Citation Score: 204.42522
- Max Citation Score: 213.66048
- Similarity Product: 141.2841248101616

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

Dataset: test