Patent ID: 6368514
Filing Date: 2002-04-09
Classification: H01G,H01L

Abstract:
A method of manufacturing a batch of thin film capacitors, the method comprising:depositing a first dielectric layer of a first thickness into an area to begin formation of a wafer; forming rows of a first capacitor plate layer by depositing a first conductive layer in a first pattern, the first pattern further defining a plurality of row scribe areas and a plurality of first column saw areas devoid of the first conductive layer; depositing a second dielectric layer of a second thickness on top of the first conductive layer; forming rows of a second capacitive plate layer by depositing a second conductive layer in a second pattern, the second pattern further defining the plurality of row scribe areas and a plurality of second column saw areas devoid of the second conductive layer, whereby, rows of overlapping regions and non-overlapping regions are formed with the first capacitor plate layer; depositing a final dielectric layer on top of the second conductive layer; shaping the wafer into columns of capacitors by separating the wafer at each of the pluralities of first and second column saw areas; forming first and second capacitor terminals by depositing a final conductive layer onto the wafer and into the first and second column saw areas to couple to capacitor plate layers and eliminating conductive regions formed between the first capacitor terminal and the second capacitor terminal by vertically etching horizontal surfaces of the final conductive layer; and shaping the wafer of capacitors into individual thin film capacitors by separating the columns of capacitors at each of the plurality of row scribe areas.