×

Optical coupling device, manufacturing method thereof, and power conversion system

  • US 9,831,226 B2
  • Filed: 11/16/2015
  • Issued: 11/28/2017
  • Est. Priority Date: 02/25/2015
  • Status: Active Grant
First Claim
Patent Images

1. An optical coupling device comprising:

  • a first element mounted over a first mounting part;

    a first lead electrically coupled to the first element;

    a first resin covering the first element;

    a second element mounted over a second mounting part;

    a second lead electrically coupled to the second element; and

    a second resin arranged between the second element and the first resin,wherein the second resin is a cured product of a composition having an epoxy resin and a curing agent, and has a light transmission property,wherein the second resin contains an aromatic ring and an alicyclic compound,wherein the cured product of the second resin includes silica in a ratio of 60 to 90 wt % based on the weight of the epoxy resin composition, andwherein the cured product is a compound represented by the formula;

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×