Patent ID: 6413868
Filing Date: 2002-07-02
Classification: H01L

Abstract:
A process for making a monolithic microwave integrated circuit module, comprising:a. providing a semiconductor substrate on which is disposed a first metallization layer which is patterned to include at least one terminal stud; b. applying and curing a first, thick layer of dielectric material onto the first metallization layer including the at least one terminal stud; c. laser ablating a slope-walled via to extend directly through the thick layer of dielectric material to each of the at least one terminal stud to form at least one slope-walled terminal stud via; d. depositing a second metallization layer onto the thick layer of dielectric material and into the at least one slope-walled terminal stud via; e. patterning the second metallization layer; and f. providing electrical communication between the second patterned metallization layer and an external device.