Semiconductor power device including ring frame for thermal impedance reduction
US10672688B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 2018 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | May 18, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D30/471
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A semiconductor power device including a base plate, a ring frame disposed over the base plate, a semiconductor power die disposed on the base plate and surrounded by the ring frame, an input lead by way the semiconductor power die receives an input signal, wherein the input lead is disposed over a first portion of the ring frame, and an output lead by way an output signal generated by the semiconductor power die is sent to another device, wherein the output lead is disposed over a second portion of the ring frame. The ring frame may be comprised of a relatively high thermal conductivity material, such as beryllium-oxide (Be), silicon-carbide (SiC), diamond, aluminum nitride (AlN), or others. The ring frame produces at least one more heat path between the active region of the semiconductor power die and the base plate so as to reduce the effective thermal impedance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.