Patent ID: 7902851

Claim:
An electrical circuit apparatus comprising: a first portion comprising a first chain-structure portion of a testing structure, the first portion comprising: a substantially-planar connection surface, a substrate provided from a wafer, and one or more chain-structure segments forming at least a part of the first chain-structure portion, each chain-structure segment comprising: two connection pads exposed at the connection surface, and an electrical interconnect electrically coupling the two connection pads; a second portion comprising a second chain-structure portion of the testing structure, the second portion comprising: a substantially-planar connection surface, a substrate provided from a wafer, and one or more chain-structure segments forming at least a part of the second chain-structure portion, each chain-structure segment comprising: two connection pads exposed at the connection surface, and an electrical interconnect electrically coupling the two connection pads; and one or more circuit devices comprising electrical circuitry, wherein the one or more circuit devices are located in one or more hermetically-sealed regions, wherein the connection surface of the first portion is bonded to the connection surface of the second portion, wherein each connection pad of one or more chain-structure segments of the first portion is electrically coupled to a connection pad of the one or more chain-structure segments of the second portion to form the testing structure, wherein the testing structure comprises at least one series circuit extending from a first end to a second end around the one or more hermetically-sealed regions and formed at an interface of the connection surface of the first portion and the connection surface of the second portion.