A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CERAMIC JOINED BODY, CERAMIC HEATER AND SENSOR
PROBLEM TO BE SOLVED: To provide a ceramic joined body which further improves corrosion resistance by preventing peeling of an electrode pad from a ceramic substrate, and a sensor comprising the ceramic joined body.SOLUTION: A ceramic joined body comprises: a ceramic substrate 102; an electrode pad 121 that is provided on a surface of the ceramic substrate; a connection terminal 130 which electrically connects with an external circuit; a joint part 150 for joining the electrode pad and the connection terminal by blazing; a ground layer 152 which covers a surface of the joint part; and a cover layer 154 which covers a surface of the ground layer while containing one or more kind selected from the group consisting of Cr, Au and Pt as a main component. The ceramic joined body further comprises an insulation ceramic member 160 which is joined to the ceramic substrate and covers at least a part of a surface 121f of a peripheral edge 121e out of a surface of the electrode pad while striding over a peripheral 121d of the electrode pad. The joint part is formed in contact with at least a part of a surface 121n of the electrode pad that is not covered by the insulation ceramic member.SELECTED DRAWING: Figure 5
【課題】セラミック基体からの電極パッドの剥離を抑制し、耐食性をさらに向上させたセラミック接合体及びこのセラミック接合体を備えたセンサを提供する。【解決手段】セラミック基体１０２と、セラミック基体の表面に設けられた電極パッド１２１と、外部回路と電気的に接続する接続端子１３０と、電極パッドと接続端子とをろう付け接合にて連結する接合部１５０と、接合部の表面を被覆する下地層１５２と、Ｃｒ，Ａｕ及びＰｔの群から選ばれる１種以上を主成分とし下地層の表面を被覆する被覆層１５４と、を備えるセラミック接合体であって、セラミック基体に接合すると共に、電極パッドの周縁１２１ｄを跨いで、電極パッドの表面のうちの周縁部１２１ｅの表面１２１ｆの少なくとも一部を覆う絶縁セラミック部材１６０をさらに備え、接合部は、絶縁セラミック部材で覆われていない電極パッドの表面１２１ｎの少なくとも一部に接して形成されてなる。【選択図】図５
CERAMIC JOINED BODY, CERAMIC HEATER AND SENSOR
PROBLEM TO BE SOLVED: To provide a ceramic joined body which further improves corrosion resistance by preventing peeling of an electrode pad from a ceramic substrate, and a sensor comprising the ceramic joined body.SOLUTION: A ceramic joined body comprises: a ceramic substrate 102; an electrode pad 121 that is provided on a surface of the ceramic substrate; a connection terminal 130 which electrically connects with an external circuit; a joint part 150 for joining the electrode pad and the connection terminal by blazing; a ground layer 152 which covers a surface of the joint part; and a cover layer 154 which covers a surface of the ground layer while containing one or more kind selected from the group consisting of Cr, Au and Pt as a main component. The ceramic joined body further comprises an insulation ceramic member 160 which is joined to the ceramic substrate and covers at least a part of a surface 121f of a peripheral edge 121e out of a surface of the electrode pad while striding over a peripheral 121d of the electrode pad. The joint part is formed in contact with at least a part of a surface 121n of the electrode pad that is not covered by the insulation ceramic member.SELECTED DRAWING: Figure 5
【課題】セラミック基体からの電極パッドの剥離を抑制し、耐食性をさらに向上させたセラミック接合体及びこのセラミック接合体を備えたセンサを提供する。【解決手段】セラミック基体１０２と、セラミック基体の表面に設けられた電極パッド１２１と、外部回路と電気的に接続する接続端子１３０と、電極パッドと接続端子とをろう付け接合にて連結する接合部１５０と、接合部の表面を被覆する下地層１５２と、Ｃｒ，Ａｕ及びＰｔの群から選ばれる１種以上を主成分とし下地層の表面を被覆する被覆層１５４と、を備えるセラミック接合体であって、セラミック基体に接合すると共に、電極パッドの周縁１２１ｄを跨いで、電極パッドの表面のうちの周縁部１２１ｅの表面１２１ｆの少なくとも一部を覆う絶縁セラミック部材１６０をさらに備え、接合部は、絶縁セラミック部材で覆われていない電極パッドの表面１２１ｎの少なくとも一部に接して形成されてなる。【選択図】図５
CERAMIC JOINED BODY, CERAMIC HEATER AND SENSOR
セラミック接合体、セラミックヒータ及びセンサ
OSAKO SHUICHI (author) / KUWAYAMA TOMOHIRO (author) / SUMI YUJIRO (author)
2016-06-30
Patent
Electronic Resource
Japanese