Samsung patents chip contacts with two layers of different grain sizes
Samsung describes a way to build tiny electrical connections inside a computer chip. The method creates a two-layer contact where the bottom layer has larger crystal grains than the top layer.
In the filing’s own words
A method of manufacturing a semiconductor device includes forming a first contact structure in contact with a source/drain region, and forming a second contact structure on the first contact structure. Forming the second contact structure includes forming a first layer comprising at least one first grain on the first contact structure, and forming a second layer including second grains on the first layer. A size of each of the at least one first grain is greater than a size of each of the second grains.
What exactly they claim (claim 1)
1. A method of manufacturing a semiconductor device, the method comprising: forming a first contact structure in contact with a source/drain region; and forming a second contact structure on the first contact structure, wherein forming the second contact structure comprises: forming a first layer comprising at least one first grain on the first contact structure; and forming a second layer comprising second grains on the first layer, wherein a size of each of the at least one first grain is greater than a size of each of the second grains.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- SEMICONDUCTOR DEVICE
- Publication number
- US20260282445A1
- Application number
- 19679180
- Filed
- May 15, 2026
- Published
- Sep 17, 2026
- Inventors
- 6
- Claims
- 20
Classified under
H10D 30/6729 Electricity & electronicsH10D 30/43 Electricity & electronicsH10D 30/6735 Electricity & electronicsH10D 30/6757 Electricity & electronicsH10D 62/121 Electricity & electronicsH10D 64/258 Electricity & electronicsMore from Samsung in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.