Patent ID: 6063244
Filing Date: 2000-05-16
Classification: B82Y,C23C,G11B,H01F

Abstract:
A process for making spin valve (SV) magnetoresistive sensors in a dual chamber deposition system including a first IBS deposition chamber, a second IBS deposition chamber and a wafer handler chamber, said process comprising the steps of:a) reactive sputter depositing an antiferromagnetic (AFM) layer on a substrate in said first IBS deposition chamber;b) moving said substrate under vacuum conditions from said first IBS deposition chamber to said second IBS deposition chamber; andc) sputter depositing a first ferromagnetic layer on said AFM layer in said second IBS deposition chamber after a controlled hold time, said controlled hold time being a time interval between completion of the reactive sputter deposition step of said AFM layer in said first IBS deposition chamber and start of the sputter deposition step of said first ferromagnetic layer in said second IBS deposition chamber.