Patent ID: 6242075
Filing Date: 2001-06-05
Classification: H01L,H05K,Y10T

Abstract:
A ceramic structure made of a plurality of fired green ceramic layers and having a channel provided therein, said ceramic structure formed of a top layer defining a top of said channel and an enclosure layer defining the remainder of said channel, said top layer subject to detrimental nonplanarity during and after assembly of said ceramic structure, said structure comprising:said top layer manufactured from a green ceramic fired prior to assembly in a non-stressed flat position which eliminates detrimental nonplanarity;said enclosure layer manufactured from a green ceramic fired prior to assembly in a non-stressed flat position; anda bonding agent disposed on contacting portions of said fired top layer and said fired enclosure layer, said bonding agent bonding said contacting portions of said fired top layer and said fired enclosure layer during said assembly whereby said top layer of said ceramic structure is planar during and after said assembly.