A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CERAMIC COMPOSITE SUBSTRATE
To achieve both heat cycle characteristics and insulation.SOLUTION: A ceramic composite substrate according to an embodiment of the present disclosure includes a ceramic plate having a first main surface and a second main surface, a first bonding layer provided on the first main surface, a first metal body bonded to the first main surface via the first bonding layer, a second bonding layer spaced apart from the first bonding layer on the first main surface, and a second metal body bonded to the first main surface via the second bonding layer, and the first bonding layer has an extension extending from between the first main surface and the first metal body toward the second bonding layer. The average value of the thickness D of the extension in the first direction orthogonal to the first main surface is 10 μm or less. The ratio of the average value of the length L of the extension in the second direction in which the first bonding layer and the second bonding layer face each other to the average value of the thickness D is greater than 3 and 15 or less.SELECTED DRAWING: Figure 3
【課題】ヒートサイクル特性と絶縁性とを両立させる。【解決手段】本開示の一側面に係るセラミック複合基板は、第１主面及び第２主面を有するセラミック板と、第１主面に設けられた第１接合層と、第１接合層を介して第１主面に接合された第１金属体と、第１主面において第１接合層と間隔を空けて設けられた第２接合層と、第２接合層を介して第１主面に接合された第２金属体と、を備える。第１接合層は、第１主面と第１金属体との間から第２接合層に向かってはみ出す延出部を有する。第１主面に直交する第１方向における延出部の厚さＤの平均値が、１０μｍ以下である。厚さＤの平均値に対する、第１接合層と第２接合層とが対向する第２方向における延出部の長さＬの平均値の比が、３よりも大きく、且つ、１５以下である。【選択図】図３
CERAMIC COMPOSITE SUBSTRATE
To achieve both heat cycle characteristics and insulation.SOLUTION: A ceramic composite substrate according to an embodiment of the present disclosure includes a ceramic plate having a first main surface and a second main surface, a first bonding layer provided on the first main surface, a first metal body bonded to the first main surface via the first bonding layer, a second bonding layer spaced apart from the first bonding layer on the first main surface, and a second metal body bonded to the first main surface via the second bonding layer, and the first bonding layer has an extension extending from between the first main surface and the first metal body toward the second bonding layer. The average value of the thickness D of the extension in the first direction orthogonal to the first main surface is 10 μm or less. The ratio of the average value of the length L of the extension in the second direction in which the first bonding layer and the second bonding layer face each other to the average value of the thickness D is greater than 3 and 15 or less.SELECTED DRAWING: Figure 3
【課題】ヒートサイクル特性と絶縁性とを両立させる。【解決手段】本開示の一側面に係るセラミック複合基板は、第１主面及び第２主面を有するセラミック板と、第１主面に設けられた第１接合層と、第１接合層を介して第１主面に接合された第１金属体と、第１主面において第１接合層と間隔を空けて設けられた第２接合層と、第２接合層を介して第１主面に接合された第２金属体と、を備える。第１接合層は、第１主面と第１金属体との間から第２接合層に向かってはみ出す延出部を有する。第１主面に直交する第１方向における延出部の厚さＤの平均値が、１０μｍ以下である。厚さＤの平均値に対する、第１接合層と第２接合層とが対向する第２方向における延出部の長さＬの平均値の比が、３よりも大きく、且つ、１５以下である。【選択図】図３
CERAMIC COMPOSITE SUBSTRATE
セラミック複合基板
TSUGAWA YUTA (author) / SARUWATARI TATSUO (author) / TANAKA JUNICHI (author)
2023-03-23
Patent
Electronic Resource
Japanese
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