2results about How to "Reduce surface leakage current" patented technology

The invention discloses a Ga2O3 diode adopting an inclined field plate and a NiO heterojunction and a preparation method of the Ga2O3 diode, and the diode sequentially comprises a cathode ohmic contact electrode, an n-type Ga2O3 substrate, an n-type Ga2O3 epitaxial layer, a composite dielectric layer, and an anode ohmic contact electrode located on a p-type oxide layer and a part of the surface of the inclined field plate from bottom to top, the composite dielectric layer comprises a p-type oxide layer and an inclined field plate, the orthographic projection of the inclined field plate surrounds the orthographic projection of the p-type oxide layer in the direction perpendicular to the plane where the n-type Ga2O3 substrate is located, the cross section of the p-type oxide layer is in an inverted trapezoid shape, and the side wall of the junction of the inclined field plate and the p-type oxide layer has an inclined angle. According to the invention, surface leakage current is inhibited by using a depletion region of a pn junction formed by the P-type oxide layer and the n-type Ga2O3 epitaxial layer, and an edge electric field of the anode ohmic contact electrode is dispersed by using the inclined field plate, so that dual homogenization of a bulk electric field and a surface electric field is realized.

The high-creeper voltage transformer comprises an epoxy insulator and a shell, the shell is sleeved on the epoxy insulator, a first umbrella skirt is arranged at the sleeve of the high-voltage end of the shell, and a second umbrella skirt is arranged at the low-voltage end of the shell, the first umbrella skirt is made of silicon rubber, and self-repairing capsules are arranged at positions, which are not more than 2 mm away from the surface, in the interiors of the first umbrella skirt and the second umbrella skirt, the self-repairing capsules comprise a capsule body, the capsule body contains a curing agent, the capsule body is a plastic film capsule body, the self-repairing capsules in the first umbrella skirt adopt a combined structure integrally formed with the first umbrella skirt, and the curing agent in the capsule body is a curing agent mixed with a volatile conductive solvent. Through the self-repairing capsules and the carbon nanotube heating film, after the sensor senses local discharge, the produced cracks and conductive channels can be repaired, further damage can be avoided, and the safety and stability are effectively improved.