Patent ID: 11929301
Assignee: NGK INSULATORS, LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electronic device comprising a package having a cavity to be sealed by a lid, the package comprising:
a heat sink having a coefficient of thermal expansion of 9 ppm/° C. or more and 15 ppm/° C. or less from 25° C. to 100° C.; and
a frame disposed on the heat sink, made of ceramics, and surrounding the cavity in plan view, wherein
an outer edge of the frame includes a first linear portion extending along a first direction, a second linear portion extending along a second direction orthogonal to the first direction, and a chamfer connecting the first linear portion and the second linear portion in plan view,
the electronic device further comprising:
an electronic component disposed within the cavity of the package; and
the lid sealing the cavity of the package, wherein
an edge of the lid includes a third linear portion extending along the first direction and a fourth linear portion extending along the second direction in plan view, and
a ratio of a distance c to a distance b is 0% or more and 120% or less,
where the distance b is a shortest distance between an imaginary intersection of the first linear portion and the second linear portion and the outer edge of the frame, the distance c is a shortest distance between an imaginary intersection of the third linear portion and the fourth linear portion and the edge of the lid in plan view, wherein
the lid is separate from the heatsink of the package.