Insulation module and gate driver
AssigneeRohm Co., Ltd.
InventorBungo Tanaka
Life of this patent
Estimating the term…
Abstract
This insulation module is provided with: a first conductor and a second conductor, which are buried in an insulating layer so as to face each other at a distance in the thickness direction of the insulating layer; a first electrode which is connected to the first conductor; a second electrode which is connected to the second conductor, while being arranged at a position that is away from the first electrode when viewed from the thickness direction of the insulating layer; a passivation layer which is formed on the surface of the insulating layer; a low dielectric constant layer which is formed on the surface of the passivation layer, and has a lower dielectric constant than the passivation layer; and a mold resin which covers the low dielectric constant layer.
Claims15
An insulation module, comprising:
- a first conductor and a second conductor embedded in an insulation layer and spaced apart and opposed to each other in a thickness-wise direction of the insulation layer;
- a first electrode connected to the first conductor;
- a second electrode spaced apart from the first electrode as viewed in the thickness-wise direction of the insulation layer and connected to the second conductor;
- a passivation layer disposed on a surface of the insulation layer;
- a low dielectric layer disposed on a surface of the passivation layer and having a lower permittivity than the passivation layer;
- and
- a mold resin covering the low dielectric layer.
A gate driver that applies a drive voltage signal to a gate of a switching element, the gate driver, comprising:
- a low-voltage circuit configured to be actuated by application of a first voltage;
- a high-voltage circuit configured to be actuated by application of a second voltage that is higher than the first voltage;
- and
- an insulation module, wherein
- the low-voltage circuit and the high-voltage circuit are connected by the insulation module and configured to transmit a signal through the insulation module, and
- the insulation module includes:
- a first conductor and a second conductor embedded in an insulation layer and spaced apart and opposed to each other in a thickness-wise direction of the insulation layer;
- a first electrode connected to the first conductor;
- a second electrode spaced apart from the first electrode as viewed in the thickness-wise direction of the insulation layer and connected to the second conductor;
- a passivation layer disposed on a surface of the insulation layer and protecting the insulation layer;
- a low dielectric layer disposed on a surface of the passivation layer and having a lower permittivity than the passivation layer;
- and
- a mold resin covering the low dielectric layer.
Dependencies are inferred from the claim text.