Patent ID: 9368390
Filing Date: 2016-06-14
CPC Classification: B81B,B81C,H01L

Claim Text:
1. A method for fabricating a semiconductor apparatus comprising: providing a first silicon substrate having a first raised portion and a lower portion and a first contact, wherein providing the first silicon substrate comprises forming a silicide layer between the first silicon substrate and a first metal layer, and the first metal layer is on the first raised portion and a region of the lower portion surrounding the first raised portion such that a first portion of the first metal layer on the first raised portion is separate from a second portion of the first metal layer on a second raised portion, the first metal layer comprising Ti, Co, Ni, W, or Pt; providing a second silicon substrate having a second contact comprising a second metal layer, wherein the second metal layer comprises Al or Cu; placing the first contact in contact with the second contact; and heating the first and second metal layers to form a metallic alloy, whereby the metallic alloy bonds the first contact to the second contact.