• Glass Disks

• Aluminum Disks

Problem

1. Computer manufacturers must continually package higher density disk storage at the same or less cost. Consequently, computer disks are becoming smaller, with higher density storage.

As disk manufacturers are required to increase the storage capacity of computer disks while at the same time decreasing their size, the quality and shape of the disk surface becomes more important to the read/write process.

2. The use of glass as an alternate substrate for disk media is increasing. Glass disks offer the advantage of superior shock resistance and lower susceptibility to particle embedment. Roughness control of the glass surface becomes especially important for low roughness glass disks. 

Solution

• Non-Contact Profiling system ensures a non-destructive method of taking surface measurements.

• A wide variety of quick and accurate measurements can be taken for process control.

• Micro-Roughness

• Waviness

• "Roll-off" (the disk-edge location as measured from the disk's theoretical center.")

• Circumferential Scans - 360° around the disk at any radius for roughness and waviness.

• Transparent and non-transparent surface measuring capability.