Electrostatic withstand voltage test device and electrostatic withstand voltage test method
US12203969B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2021 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Oct 29, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D84/038
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A mount board has a plurality of terminals electrically connected to a plurality of pins of a semiconductor device, and a conductor pattern. An electrostatic withstand voltage test device includes a metal plate on which the mount board is installed, a power supply for applying a voltage to the metal plate, an insulator disposed between the metal plate and the mount board, a switch circuit connected between the terminals and ground wiring, and a controller for controlling the switch circuit. The switch circuit includes a plurality of first switches provided corresponding to the terminals and each connecting a corresponding terminal to the ground wiring. The controller turns on at least one first switch selected from the first switches when an electric charge stored in the conductor pattern is discharged to the ground wiring through the semiconductor device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.