2results about How to "Avoid insulation breakdown" patented technology

The present application has an object to prevent insulation breakdown caused by misalignment of a trench and a field insulation layer in a Schottky barrier diode of gallium oxide. The Schottky barrier diode includes an anode electrode (40) in Schottky contact with a drift layer (30), a cathode electrode (50) in ohmic contact with a semiconductor substrate (20), an insulation film (63) covering an inner wall of a trench (61) provided in the drift layer (30), a metal film (64) covering the inner wall of the trench (61) through the insulation film (63) and electrically connected to the anode electrode (40), and a field insulation layer (70). The field insulation layer (70) includes a first portion (71) between an upper surface (31) of the drift layer (30) and the anode electrode (40) and a second portion (72) covering the inner wall of the trench (61) through the metal film (64) and the insulation film (63). Thus, even if the alignment of the trench (61) and the field insulation layer (70) is misaligned, insulation breakdown does not occur.

The utility model relates to a protective suspension type closing resistor unit structure, which comprises a plurality of resistor sub-strings which are arranged in a shell and are connected in series, the resistor sub-strings comprise insulating rods which are arranged on a front end cover and a rear end cover in a delta shape, a plurality of I-shaped insulating sheets which are arranged along the axial direction of the insulating rods are arranged on the insulating rods, and the insulating sheets are arranged on the front end cover and the rear end cover. An annular resistor disc is arranged in the insulation sheet, an annular deformation groove located at the corner is formed in a concave ring of the insulation sheet, and the corresponding resistor discs on different insulation rods are connected through copper sheets, space is provided for the edges of the resistor discs through the arrangement of the deformation grooves, the edges of the resistor discs are prevented from being broken, and deflection deformation of the cross-core insulation rod is reduced; through the arrangement of the outer lining, impact damage of airflow to the appearance surface structure of the resistor disc in the inflation and deflation process is prevented, and even if slight abrasion exists, dust particles fall into the trap through the arrangement of the pull-out type particle trap on the shell and the slag falling hole of the outer lining, and insulation breakdown is avoided.