Radio-frequency switch having stack of non-uniform elements

US10840233B2 · kind B2 · utility

Assignee

• Skyworks Solutions, Inc. · US

Inventors

• Yu Zhu · Wellesley, US
• David Scott Whitefield · Andover, US
• Ambarish Roy · Waltham, US
• Guillaume Alexandre Blin · Carlisle, US

Key dates

• Filing date: Mar 12, 2019
• Grant date: Nov 17, 2020
• Expiry date: Mar 12, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2924/181

Abstract

A switch fabrication method can include forming a plurality of elements, and connecting the elements in series between a first terminal and a second terminal, such that the elements include a first end element connected to the first terminal and a second end element connected to the second terminal. Each element can have a parameter such that the elements have a distribution of parameter values that decreases from the first end element for at least half of the elements to a minimum parameter value corresponding to an element between the first end element and the second end element. The minimum parameter value can be less than the parameter value of the second end element, and the parameter value of the first end element can be greater than or equal to the parameter value of the second end element.