Patent ID: 8687469
Filing Date: 2014-04-01
Classification: G11B

Abstract:
1. A method of manufacturing an electronic device, the electronic device including: an electronic component; a first member supporting the electronic component; a second member to which the first member is bonded; a first bonding layer bonding the electronic component and the first member together; and a second bonding layer bonding the first member and the second member together, wherein the first member has an outer surface, the outer surface including a first surface in contact with the first bonding layer, a second surface in contact with the second bonding layer, and a third surface in contact with neither of the first and second bonding layers, the first bonding layer includes a first bonding material layer made of a first bonding material that melts when heated to a first melting temperature or higher, and the second bonding layer includes a second bonding material layer made of a second bonding material that melts when heated to a second melting temperature or higher, the method comprising: a first bonding step of bonding the electronic component and the first member together via the first bonding layer; and a second bonding step of bonding the first member and the second member together via the second bonding layer after the first bonding step, wherein in the second bonding step, with a preliminary bonding layer interposed between the first member and the second member before being bonded together, the preliminary bonding layer including the second bonding material and being configured to later become the second bonding layer, the second bonding material included in the preliminary bonding layer is heated and melted by irradiation with light projected to travel through the first member from the third surface to the second surface, and thereafter the second bonding material is solidified so that the preliminary bonding layer becomes the second bonding layer, the first member is made of Si, and the light has a wavelength in the range of 1100 to 15000 nm.