SURFACE DEFECT MEASUREMENTS OF COMPUTER HARD DISKS

Award Information
Agency:
National Science Foundation
Branch
n/a
Amount:
$203,000.00
Award Year:
1988
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
5244
Agency Tracking Number:
5244
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
200 Commerce Dr, Rochester, NY, 14623
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
THOMAS C. BRISTOW
DIRECTOR
() -
Research Institution:
n/a
Abstract
THIS PROPOSAL PRESENTS A RESEARCH PLAN FOR THE MEASUREMENT OF SURFACE DEFECTS ON EITHER HARD DISK MEDIA OR HARD DISK SUBSTRATES. THESE DEFECTS CAN EFFECT THE PERFORMANCE OF A COMPUTER DISK AS THE HEAD TRACKS OVER THE SURFACE. THE PROPOSED RESEARCH PROGRAM IS TO MEASURE SURFACE DEFECTS ON COMPUTER HARD DISKS USING NON-CONTACT OPTICAL SCANNING INTERFEROMETRY. THE EFFECTS OF SIGNAL TO NOISE RATIO, SIGNAL BANDWIDTH, LASER SPOT SIZE, AND FOCUSING ERRORS WILL BE STUDIED FOR SEVERAL DISK ROTATION SPEEDS. THE ANTICIPATED RESULT OF THE PHASE I RESEARCH WILL BE THE CHARACTERIZATION OF A COMPUTER HARD DISK SURFACE AROUND ONE CIRCULAR SEGMENT. THE IMPLICATION OF THIS RESEARCH IS THE POTENTIAL FOR A RAPID NON-CONTACTING MEASUREMENT TECHNIQUE OF SURFACE FEATURES OF A FINISHED HARD DISK OR UNCOATED HARDDISK SUBSTRATE. THE POTENTIAL APPLICATION OF THIS RESEARCH IS THE DEVELOPMENT OF NEW MEASUREMENT TECHNIQUES AND TEST EQUIPMENT FOR THE COMPUTER INDUSTRY. THESE NEW MEASUREMENT TECHNIQUES AND TEST EQUIPMENT WILL HAVE THE POTENTIAL TO IMPROVE THE QUALITY OF COMPUTER HARD DISKS.

* information listed above is at the time of submission.

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