Patent ID: 9249015
Filing Date: 2016-02-02
CPC Classification: B22C,B81C

Claim Text:
1. A method of forming a mold structure having high-precision multi-dimensional components comprising: forming a first oxide layer on a top surface of a first semiconductor substrate and patterning a first design in the first oxide layer; forming a second oxide layer on a top surface of a second semiconductor substrate and patterning a second design in the second oxide layer wherein the first design is different from the second design; repositioning said substrates to enable said first and second oxide layers to make partial contact with one another such that a portion of one of the first oxide layer and the second oxide layer avoids contact with an other of the first oxide layer and the second oxide layer such that there is a gap between the portion of the one of the first oxide layer and the second oxide layer and the semiconductor substrate on which the other of the first oxide layer and the second oxide layer is formed; bonding in sequential order said repositioned substrates using dielectric bonding, forming a three dimension (3D) mold; and filling said 3D mold with a filling material including filling the gap with the filling material and removing an overburden of said filling material present on a top surface of said 3D mold.