Engineering Experiences Luther Nieh
What Makes A Good Engineer   <ul><li>Responds to requirement and input </li></ul><ul><li>Defines scope of work </li></ul><...
Engineering Design Methodology   <ul><li>Marketing Requirement Document </li></ul><ul><li>Product Requirement Specificatio...
System Design <ul><li>Process requirements </li></ul><ul><li>Schematics & Block Diagrams </li></ul><ul><li>Brain storm and...
Mechanical Engineering and Design <ul><li>Select principal components </li></ul><ul><li>Initial layout </li></ul><ul><li>M...
Turning It Into A Product   <ul><li>Alignment and Test plan  </li></ul><ul><li>Services – gases, vacuum, pneumatics, power...
AccuScribe Wafer Scriber <ul><li>Produce high brightness LED chips </li></ul><ul><li>2” sapphire wafers (20,000 dies) </li...
Next Gen AccuScribe System <ul><li>2” to 4” sapphire wafers </li></ul><ul><li>8 to 12 wafers per hour </li></ul><ul><li>Li...
System Engineering <ul><li>Laser Selection </li></ul><ul><li>X-Y-Theta Stage Selection  </li></ul><ul><li>Granite platform...
Optical Platform Block Diagram
Optical Platform Realized
Optical Platform Design - 1 <ul><li>Laser power attenuator </li></ul><ul><li>Power detector </li></ul><ul><li>Laser beam c...
Optical Platform Design - 2 <ul><li>Visible light objective lens </li></ul><ul><li>Camera for visible beam </li></ul><ul><...
Optical Disk Drive Library System <ul><li>High Capacity 500 to 1000 cartridges </li></ul><ul><li>Access any location <.8 s...
Library System Sub-systems <ul><li>Back to back back-planes – 9 rows x 6 columns </li></ul><ul><li>5 axes mechanisms – X, ...
Therma-Probe 3000  Metrology Tool
Therma-Probe 300 Metrology Tool  Statement of works
Therma-Probe 300 Metrology Tool  Deliverables
High Throughput Strip Tool <ul><li>Wide temperature wafer pedestal design </li></ul><ul><li>Pedestal lift design </li></ul...
In Tool Laser Beam Profiler <ul><li>In tool examination of Laser Beam profiles  </li></ul><ul><li>Used it to align 8 paral...
Bus Bar Tape Centering Test Bed  <ul><li>Bring bus bar tape from supply spool to within spec position at the bus bar welde...
Rational Manager <ul><li>Systematic Problem Solving  Failure Mode and Effects Analysis </li></ul><ul><li>Decision Analysis...
What I have learned from Engineering <ul><li>Use Visible tools to communicate and execute design – block diagram, drawing ...
What Makes A Good Manager   <ul><li>Has Vision </li></ul><ul><li>Has the ability to lead  </li></ul><ul><li>Manages people...
Thank You for Your Time
Upcoming SlideShare
Loading in …5
×

Engineering Experiences Luther Nieh

529 views

Published on

Luther Nieh\'s experiences and sample projects

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
529
On SlideShare
0
From Embeds
0
Number of Embeds
18
Actions
Shares
0
Downloads
0
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Engineering Experiences Luther Nieh

  1. 1. Engineering Experiences Luther Nieh
  2. 2. What Makes A Good Engineer <ul><li>Responds to requirement and input </li></ul><ul><li>Defines scope of work </li></ul><ul><li>Shares knowledge & deliver expertise </li></ul><ul><li>Brings clarity to a complex problem </li></ul><ul><li>Solves challenging problems </li></ul><ul><li>Does a good layout </li></ul><ul><li>Checks his/her own design </li></ul><ul><li>Delivers solutions </li></ul>
  3. 3. Engineering Design Methodology <ul><li>Marketing Requirement Document </li></ul><ul><li>Product Requirement Specifications </li></ul><ul><li>System Functional Block Diagram </li></ul><ul><li>Subsystem Description and Analysis </li></ul><ul><li>Engineering Specifications </li></ul>
  4. 4. System Design <ul><li>Process requirements </li></ul><ul><li>Schematics & Block Diagrams </li></ul><ul><li>Brain storm and tradeoffs </li></ul><ul><li>Mechanical subsystems </li></ul><ul><li>Modeling analysis </li></ul><ul><li>Electrical subsystems </li></ul><ul><li>Computer software and firmware </li></ul>
  5. 5. Mechanical Engineering and Design <ul><li>Select principal components </li></ul><ul><li>Initial layout </li></ul><ul><li>Mechanical structures </li></ul><ul><li>Mechanisms </li></ul><ul><li>Instrumentations </li></ul><ul><li>Electrical packaging and cabling </li></ul><ul><li>Enclosure </li></ul><ul><li>User Interface </li></ul>
  6. 6. Turning It Into A Product <ul><li>Alignment and Test plan </li></ul><ul><li>Services – gases, vacuum, pneumatics, power, ventilation </li></ul><ul><li>Ergonomics, Health and Safety </li></ul><ul><li>Regulatory – UL, CE, CSA, FCC </li></ul><ul><li>Product Packaging </li></ul><ul><li>Trouble shooting guide </li></ul><ul><li>Installation and Service Manuel </li></ul><ul><li>User training </li></ul><ul><li>Spares and backups </li></ul>
  7. 7. AccuScribe Wafer Scriber <ul><li>Produce high brightness LED chips </li></ul><ul><li>2” sapphire wafers (20,000 dies) </li></ul><ul><li>1 to 3 wafers per hour </li></ul><ul><li>Small solid state laser </li></ul><ul><li>Small 2” X-Y-Theta stages </li></ul><ul><li>Small platform 15” x 24” x 48” </li></ul><ul><li>~$230K </li></ul>
  8. 8. Next Gen AccuScribe System <ul><li>2” to 4” sapphire wafers </li></ul><ul><li>8 to 12 wafers per hour </li></ul><ul><li>Lightwave Electronics Laser </li></ul><ul><li>8” X-Y-Theta stages </li></ul><ul><li>Large Platform 24” x 36” x 64” </li></ul><ul><li>~$650K </li></ul>
  9. 9. System Engineering <ul><li>Laser Selection </li></ul><ul><li>X-Y-Theta Stage Selection </li></ul><ul><li>Granite platform design </li></ul><ul><li>Laser bean delivery system </li></ul><ul><li>Software/firmware </li></ul><ul><li>User Interface </li></ul><ul><li>Large Platform 24” x 36” x 64” </li></ul><ul><li>~$650K </li></ul>
  10. 10. Optical Platform Block Diagram
  11. 11. Optical Platform Realized
  12. 12. Optical Platform Design - 1 <ul><li>Laser power attenuator </li></ul><ul><li>Power detector </li></ul><ul><li>Laser beam collimator </li></ul><ul><li>Laser beam shutter </li></ul><ul><li>LED light sources </li></ul><ul><li>Wafer edge detector </li></ul><ul><li>Z focusing stage </li></ul><ul><li>UV Laser objective lens </li></ul><ul><li>Camera for UV beam </li></ul>
  13. 13. Optical Platform Design - 2 <ul><li>Visible light objective lens </li></ul><ul><li>Camera for visible beam </li></ul><ul><li>Alignment HeNe laser </li></ul><ul><li>Alignment targets </li></ul><ul><li>Turning mirrors </li></ul><ul><li>Beam Splitters </li></ul><ul><li>AutoFocus compensator </li></ul><ul><li>Debris removal </li></ul><ul><li>Light tight box </li></ul>
  14. 14. Optical Disk Drive Library System <ul><li>High Capacity 500 to 1000 cartridges </li></ul><ul><li>Access any location <.8 sec </li></ul><ul><li>>1,000,000 exchanges/year </li></ul>
  15. 15. Library System Sub-systems <ul><li>Back to back back-planes – 9 rows x 6 columns </li></ul><ul><li>5 axes mechanisms – X, Y, 2X Z fingers, Theta </li></ul><ul><li>Mailbox mechanism 2X </li></ul><ul><li>Transfer Mechanisms </li></ul><ul><li>Computer card cages </li></ul><ul><li>Alignment modules </li></ul><ul><li>Power supplies & cables </li></ul><ul><li>Air filters and blower </li></ul><ul><li>Enclosure </li></ul>
  16. 16. Therma-Probe 3000 Metrology Tool
  17. 17. Therma-Probe 300 Metrology Tool Statement of works
  18. 18. Therma-Probe 300 Metrology Tool Deliverables
  19. 19. High Throughput Strip Tool <ul><li>Wide temperature wafer pedestal design </li></ul><ul><li>Pedestal lift design </li></ul><ul><li>Reliability improvements </li></ul><ul><li>Sensors improvements </li></ul><ul><li>Vacuum window FA </li></ul><ul><li>Vacuum slit Valve </li></ul><ul><li>Top chamber lift cost reduction </li></ul>
  20. 20. In Tool Laser Beam Profiler <ul><li>In tool examination of Laser Beam profiles </li></ul><ul><li>Used it to align 8 parallel laser beams to correct spacing </li></ul><ul><li>Reduce tool maintenance time </li></ul><ul><li>Improve tool and process line availability </li></ul><ul><li>Improved PV Panel Power output </li></ul>
  21. 21. Bus Bar Tape Centering Test Bed <ul><li>Bring bus bar tape from supply spool to within spec position at the bus bar welder head </li></ul><ul><li>Used waist pins and guide rollers to gradually remove bus bar tape offset & twist </li></ul><ul><li>Incorporates tape tension sensor feedback </li></ul><ul><li>After alignment, provides automatic tape centering </li></ul><ul><li>Reduce tape breakage </li></ul>
  22. 22. Rational Manager <ul><li>Systematic Problem Solving Failure Mode and Effects Analysis </li></ul><ul><li>Decision Analysis </li></ul><ul><li>Project Planning </li></ul>
  23. 23. What I have learned from Engineering <ul><li>Use Visible tools to communicate and execute design – block diagram, drawing tree, BOM, pictures, screen shots, Gantt charts </li></ul><ul><li>Leverage existing hardware & tools to collect performance data to refine & complete design </li></ul><ul><li>Think </li></ul><ul><li>Ask Questions </li></ul><ul><li>Work with smart people </li></ul>
  24. 24. What Makes A Good Manager <ul><li>Has Vision </li></ul><ul><li>Has the ability to lead </li></ul><ul><li>Manages people to become more successful </li></ul><ul><li>Identifies and creates new opportunities </li></ul><ul><li>Improves key processes </li></ul><ul><li>Develops resources </li></ul><ul><li>Grows a business </li></ul>
  25. 25. Thank You for Your Time

×