SHARED POWER FOOTER CIRCUIT

Organization Name

taiwan semiconductor manufacturing company, ltd.

Inventor(s)

Hidehiro Fujiwara of Hsin-chu (TW)

Kao-Cheng Lin of Taipei City (TW)

Wei Min Chan of Sindian City (TW)

Yen-Huei Chen of Jhudong Township (TW)

SHARED POWER FOOTER CIRCUIT - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240212747 titled 'SHARED POWER FOOTER CIRCUIT

The patent application describes a device with two power rails for different power domains, each connected to a circuit block and a virtual VSS terminal. A footer circuit controls the connection between the virtual VSS terminal and a ground terminal.

Device with two power rails for separate power domains
Circuit blocks connected to each power rail
Virtual VSS terminal connecting both circuit blocks
Footer circuit controlling connection between virtual VSS terminal and ground terminal

Potential Applications: - Electronic devices requiring separate power domains - Systems needing controlled connections between power and ground terminals

Problems Solved: - Efficient power management in devices with multiple power domains - Controlled grounding for improved circuit performance

Benefits: - Enhanced power distribution efficiency - Improved circuit performance and reliability

Commercial Applications: Title: Power Management Device for Enhanced Circuit Performance This technology can be used in various electronic devices, such as smartphones, tablets, and IoT devices, to optimize power distribution and improve overall circuit performance. This innovation has the potential to enhance the reliability and efficiency of electronic systems, leading to better user experiences and longer device lifespans.

Questions about the technology: 1. How does the footer circuit control the connection between the virtual VSS terminal and the ground terminal? 2. What are the specific advantages of having separate power domains in electronic devices?

Original Abstract Submitted

a device includes a first power rail for a first power domain and a second power rail for a second power domain. a first circuit block is connected to the first power rail and a second circuit block is connected to the second power rail. the first and second circuit blocks are both connected to a virtual vss terminal. a footer circuit is connected between the virtual vss terminal and a ground terminal, and the footer circuit is configured to selectively control a connection between the virtual vss terminal and the ground terminal.