Patent ID: 8480806
Filing Date: 2013-07-09
Classification: H01L,Y10T

Abstract:
1. A bonding structure comprising: a ceramic member including a hole; a terminal embedded in the ceramic member, including an exposed surface exposed to a bottom surface of the hole, and made of a refractory metal having a thermal expansion coefficient substantially equal to a thermal expansion coefficient of the ceramic member; a brazed bond layer in contact with the exposed surface of the terminal; and a connecting member inserted in the hole, bonded to the terminal via the brazed bond layer, and made of a refractory metal having a thermal expansion coefficient substantially equal to the thermal expansion coefficient of the ceramic member; wherein an inner diameter of the hole is larger than an outer diameter of the connecting member, a clearance between a side surface of the hole and the connecting member when the connecting member is inserted in the hole, a braze pool space is formed in the ceramic member in a part of the side surface of the hole, the braze pool space has a substantially semicircular shape in a cross-sectional plane parallel with a main surface of the ceramic member, and the braze pool space is partially filled with a braze material to lock the connecting member to the ceramic member.