Phupaya Phujong

Product: OSA (Optical sub-assembly)

Position: Sustaining Mfg Process Engineer

Process: Active Alignment TOSA and ROSA

Machine: Lumentum

Responsibility:

Setup Machine: Active Alignment TOSA and ROSA

• Prepare and purchase the equipment
• Training technician and setup together
• Equipment certificated register.

Process Validation

• Lens Pickup force calibration.
• UV cures setting and measurement.
• Power Coupling Efficiency Correlation, run 3 units to find tune machine.
• Lens Shear Test.
• Gauge GR&R.
• Trial Build.
• Data comparison power before and after UV curing.
• X-Section, Epoxy bond line thickness between Lens and package.

Failure Analysis

• Low Power Failure

Daily meeting

• Discuss with the production engineer and supervisor about the issue and follow up yield.
• SPC, power distribution.

Weekly

• Conference with SZ (China) team.
• Top 3 failure analysis, find the root cause to reduce by discussing with the team.

Product: WSS (Wavelength Selective Switch)

Position: Test Engineer

Processes:

• Calibration and Test
• Environment Strength Test
• Calibration and Test 24-7
• Final Test

Tester: Lumentum

Responsibility:

Product Transfer

• Work and communicate with the Canada team(R&D).
• Setup machine on the plan, BOM checking, work with equipment engineer for purchasing, plan to install the machine.
• Implement and deploy software, work with test engineers (R&D).

Setups Machine

• Hardware Setup, work with technician and third party for setup and equipment certificated register.
• Software Deploy, support R&D team when we have a new release software, tester troubleshooting and optimize such as software and hardware. Corrective action both hardware and software, prelim configuration setting.

Process Validation

• Cycle time review.
• Data comparison between the golden machine.
• Create hardware, electrical and optical wiring diagrams.
• GR&R.

Failure Analysis

• Low Phase Stroke
• LCOS Low Performance

Daily Meeting

• Discuss with production about the issue and follow up yield.

Weekly Progress Report with Canada (R&D) Team.

• What we need to help, what we’ve done before, what highlights and lowlights are and what the next plan is.
• Conference calls with R&D team 2 times per week.

Kaizen: Reduce Fiber Damaged

• Fiber Jig Management.
• Support tray for feeding fiber.
• Bounce Head fiber connector.

Training:

The Fabrinet Engineer Development Program #1

• Kitting or material preparation
• Die Bond and Wire Bond
• Sealing
• Active Alignment
• Test
• Packaging

Examination event

BU: MACOM

Position: NPI Engineer

Product: OSA (Optical sub-assembly)

Processes:

• Active Alignment TOSA and ROSA
• Active Alignment (Welder) TOSA and ROSA

Machine: ADST

Responsibility:

Setup Machine: Active Alignment TOSA and ROSA

• Transfer machine with Korean team.
• Prepare and plan to set up and install.
• Equipment certificated register.

Process Validation: Active Alignment Epoxy Attached

• Lens Pickup flatness check.
• UV curing system, testing and measuring the power, position of the UV tube.

Process Validation: Active Alignment Welder

• Lens pickup leveling check.
• Power weld calibration.
• Lens x-section for checking depth of the welded point.

Trial build

• Pre-run for ensuring the machine is ready to produce.

Machine Data correlation

• Data comparison between golden machine and the new machine validated.

Document

• Create control plans.
• Create Work instruction and Visual aid.
• Examination for operator training.

Failure Analysis

• Low power failure

DOE

• Lens shear test, testing the amount of the epoxy relation how shear test is.

Kaizen

• Epoxy curing time, cycle time improvement.

BU: NEOPHOTONICS

Position: Process Engineer

Product: OSA (Optical sub-assembly)

Processes: Active Alignment (Welder) TOSA & ROSA and Sealing

Machine: ADST

Responsibility:

Daily

• Yield maintenance and monitoring.
• SPC, take action when out of the spec.

Weekly

• Following improvement or finding with the China team.
• Top 3 Failure Analysis, discuss and find root cause.
• RGA sample, confirm gas in the TOSA & ROSA.

Monthly

• Report cycle time for each machine, plan to improve for kaizen events.
• Top 3 failure reviews and reduce.
• Renew or find golden and silver, the units are checked by daily and weekly before running the production.
• Equipment dues date checking.

Kaizen

• Active Alignment (Welder) machine cycle time improvement.