Semiconductor chip capable of calibrating bias voltage supplied to write clock buffer regardless of process variation and temperature variation, and devices including the same
US12394470B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Feb 14, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/4076
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor chip includes a write clock buffer, a voltage regulator, a process calibration circuit and a temperature calibration circuit. The voltage regulator generates plural regulated voltages. The process calibration circuit output one of the regulated voltages as a bias voltage of the write clock buffer, depending on a process variation of the semiconductor chip. The temperature calibration circuit track a temperature variation of the semiconductor chip in real time, performs analog calibration on the bias voltage from the process calibration circuit in real time depending on a result of the tracking, and outputs the analog-calibrated bias voltage to the write clock buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.