Patent ID: 7132033

Claim:
A method of forming a layered polishing pad comprising: a) forming first and second double-sided pressure sensitive adhesive layers on a bottom and top surfaces of a subpad, respectively, with a nip roller to form a double laminated subpad, the double laminated subpad having a nip exit angle γ through the nip roller and wherein the first and second double-sided pressure sensitive adhesive layers can create stresses that result in curling of the double laminated subpad; b) controlling nip exit angle γ to 0 degrees±3 degrees over a travel length to limit curling of the double laminated subpad; c) providing a polishing pad layer having a lower surface; and d) adhering the polishing pad layer to the double laminated subpad, the double laminated subpad including the first and second double-sided pressure sensitive adhesive layers adhered to the bottom and top surfaces, by pressing the polishing pad layer lower surface against the second double-sided pressure sensitive adhesive layer.