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WorksheetsPre-Test : FMEA 4th Edition
Total questions: 40
Worksheet time: 10hrs 0mins
If more than one potential effect is identified for a particular potential failure mode, consider the worst case when documenting the severity ranking.
True
False
Only a design or process revision (of the recommended action) can bring about a reduction in the severity ranking
True
False
When the occurrence ranking is low, automatically the detection ranking is low.
True
False
(Fill in the blank)
The higher the chances of detection, the _____________the detection rating.
higher
lower
When more than one detection control for a particular potential cause/ failure is identified, record the highest ranking value in the Detection column.
True
False
Risk Priority Number (RPN) shall be assigned for each current process control detection, e.g. there could be more than one RPN for a particular potential cause.
True
False
Recommended action which already closed can be left at Recommended action column forever and we no need to move it to current prevention or detection control.
True
False
If no recommended action, we should just let the recommended action column blank.
True
False
What is the detection ranking for “In-process visual monitoring 1 strip per magazine at wire bond process”?
2
5
6
7
What is the detection ranking for “Die shear test (after die attach cure)”?
1
3
6
7
What is the detection ranking for “Gauging performed on setup and first piece check”?
2
3
4
5
What is the detection ranking for “2nd optical inspection on die defects (After wafer saw)”?
2
7
8
9
What is the detection ranking for “Mold machine automatic stop if vacuum is not turned on, thus potential failure of flashes has not been produced.”?
2
7
8
9
What is the detection ranking when there is no detection control, or cannot produced?
7
8
9
10
What is the detection ranking for “Inline vision system to unpick defects at pick and place operation”?
2
3
6
7
What is the detection ranking for “Automated control (light, buzzer) to alert operator, but machine continue operation.”?
2
5
7
8
What is the detection ranking for “Ball Shear Test (at Wire Bond Process)”?
1
5
7
8
What is the detection ranking for “Top chip measurement (at Wafer Sawing process)”?
2
5
8
9
What is the detection ranking for “Process audit”?
1
7
8
9
What is the detection ranking for cause prevention as a result of fixture machine design or part design, and discrepant part cannot be made?
1
7
8
9
The information from RIGHT HAND SIDE Cause & Effect Diagram shall be updated into _________________ column of FMEA.
Potential Failure Mode
Potential Cause/ Mechanism of failure
Potential Effect of failure
Current Process Control Prevention & Detection
What is the category of control for “Work instruction”?
Prevention control
Detection control
What is the category of control for “verification check”?
Prevention control
Detection control
What is the category of control for “Automated vision system”?
Prevention control
Detection control
What is the category of control for “Standard operating procedure”?
Prevention control
Detection control
What is the category of control for “Setup instruction”?
Prevention control
Detection control
What is the category of control for “Operator training”?
Prevention control
Detection control
What is the category of control for “alarm / buzzer and machine not stop”?
Prevention control
Detection control
What is the category of control for “Setup”?
Prevention control
Detection control
What is the category of control for “Setup buyoff”?
Prevention control
Detection control
What is the category of control for “Preventive Maintenance”?
Prevention control
Detection control
What is the category of control for “Process parameter optimization”?
Prevention control
Detection control
What is the category of control for “SPC (with control chart)”?
Prevention control
Detection control
What is the category of control for “Tool life control”?
Prevention control
Detection control
When the FMEA shall be updated?
i) Every 6 months period
ii) As a result of actions from Continuous Improvement Program, such as improvement in yield and quality
iii) As a result of Corrective/ Preventive Actions taking place in the plant, such as 8D actions due to Voice of Customer and Voice of Production
iv) Changes in design/ process, modification of equipment, and/ or the latest relevant actions occurring after start of production
i and ii only
i, ii and iii only
ii and iii only
All of above
What are Carsem criteria to determine action priorities?
i) When the severity is 9 or 10, the team must ensure that the risk is addressed through existing design / process control prevention or recommended actions (as documented in the FMEA), and
ii) When the severity 8 or below, the team should take actions for those causes with top 3 RPN (by process), and
iii) Customer key focus, and
iv) Team decision (with supporting facts & data for justification)
v) When there is no detection control.
vi) When the Occurrence equal or more than ‘5’.
i, ii, iii and iv only
ii, iii, iv and v only
iii, iv, v and vi only
All of above
In which column of the control plan, we should include with our process checklist?
Evaluation/Measurement Technique.
Control Method
Reaction Plan.
Process Name/ Operation Description
What type of control plan is a description of the dimensional measurements and material and performance tests that will occur during prototype build?
Prototype
Pre-launch
Production
What type of control plan is a comprehensive documentation of product/ process characteristics, process control, tests and measurement system that will occur during mass production?
Prototype
Pre-launch
Production
What type of control plan is a description of the dimensional measurements and material and performance tests that will occur after prototype and before full production?
Prototype
Pre-launch
Production
