Tannen Engineering Services
Sample Projects

Click here to go to the Design Section of Sample Projects
Click here to go to the Software Development Section of Sample Projects

Contract Manufacturing

  Turnkey manufacturing services
  System integration, test and debug
  Turnkey replication of electronic
and electro-mechanical equipment
  In-house test and system engineering
  Mechanical, electronic and equipment
design and development
  Software design and development
  Documentation: ISO 9000, CE Marking,
product specs, CAD drawings
  Production and test documentation
Contract Manufacturing/ Electro-mechanical

Turnkey Electro-Mechanical Manufacturing

Client Profile:
Leading world wide disk drive manufacturer.

Task:
Client needed to manufacture a Servo Writer Carriage, including: Frame, Granite Plate, Card Cage ( two each, interconnected with a Bus Extender Card) Power Supplies, plasma monitor, keyboard, all power and data cable assemblies, Robotics Controllers and Pneumatics.

Solution:
Tannen Engineering Services assigned a project manager and a team to evaluate the documentation available and produce what was not available from the existing prototypes and work in close synergetic association with the client's engineering groups involved in the project. A normal lead time for such elaborate equipment is about 12 to 16 weeks, for the first unit to be completed. Client's expectations were to receive the first two units in about 8 weeks A.R.O. We delivered the first two units in 4 weeks and two units every two weeks thereafter until the project was completed. At the end of the job, a savings of $20,000.00 obtained in the purchasing of materials, was passed back and credited to the client's account.


Contract Manufacturing/ System Integration

System Integration

Client Profile:
Leading world wide Winchester Disk Drive Manufacturer

Task:
Client needed support for designing, prototyping and turnkey a new Burn-in Test Chamber. The requirement was to obtain set points temperature ranges from ambient to 65 C with a ± 5 C permissible deviation from the set point, anywhere in the DUT area. The new generations of hard drives, due to lower head's flying highs, higher disk capacities and higher rotational speeds (in excess of 7,000 RPM) are very sensitive to shock and vibration. Under test conditions, the new drives generate vibrations of significant magnitudes that will propagate through the chamber's shelves and fixtures, "cross-talking" to adjacent units. External sources of vibration, like floor traffic and bumps, will also propagate to the fixture/shelf assembly, adding to the cross-talk state described above. Vibrations and shocks on the DUT's affects reliability of the test in the integrity of the electrical connections. The mechanical energy transmitted to the DUT's can contribute to NRRO, bump errors, head slap and adversely affect tests and production yields. In addition to optimizing thermal characteristics and improved shock and vibration dampening, flexibility and low cost were part of the requirements.

Solution:
Tannen Engineering Services assigned a team to evaluate the requirements and work in close synergetic association with the client's engineering groups involved in the project. Specialists in the different Engineering disciplines needed were brought on board. After 12 weeks, the first prototype was delivered. The final product was a low cost, state-of-the-art burn-in test Chamber, that exceeded Client's thermal distribution and vibration dampening specifications.

Meeting Today's High-Tech Challenges


Why Use Tannen? Our Services


Back to top of page


Tannen Engineering Services

Tannen Engineering Services
2142 Paragon Drive
San Jose, CA 95131
(408) 573-3700
FAX: (408) 573-3702
E-mail:info@tannen.com



Designed by d2m . . . go there!