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Q1: What kind of material and data will be needed for fixture fabrication?
Q2: How long does it take for data analysis and its report?
Q3: How long does it take to fabricate a fixture?
Q4: How to use the T_Link software provided by Landrex?
Q5: Why are the Net Access Rate and the Coverage Rate different from each other?
Q6: Can you provide the Test Coverage Rate from the CAD data analysis?
Q7: Which software does Landrex use to analyze the data?
Q8: How do you define the test probe receptacles height?
Q9: What is the minimum acceptable clearance between test probes? What is the most suitable way of laying out a test pad?

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1. What kind of material and data will be needed for fixture fabrication?

1. Bare Board
2. Loaded Board
3. Data Files (CAD file would be the best, and Gerber file is acceptable. The test point of a single layer board can be selected manually.)
4. BOM
5. Circuit Diagram


2. How long does it take for data analysis and its report?

For analysis using CAD files, it will take 4-8 hours;
For analysis using Gerber file, it will take 24-48 hours.


3. How long does it take to fabricate a fixture?

Please check the following standard lead time of fixture fabrication. If we can interact with each other during the development of PCB, it will shorten the time to fabricate the fixture.

***Functional Fixtures
Products Standard Delivery
General Customers Volume Agreement Customers
Vacuum FT(VFT) 7 Working Days 5 Working Days
Press FT(PFT) 5 Working Days 3 Working Days
Manual FT(MFT) 6 Working Days 4 Working Days
Simple FT(SFT) 6 Working Days 4 Working Days
Manual Mech(MMT) 10 Working Days 8 Working Days
Wireless 14 Working Days 14 Working Days

***ICT & MDA Fixtures
Products Standard Delivery
General Customers Volume Agreement Customers
MDA Fixture 5 Working Days 3 Working Days
MDA Fixture(w/Program) 7 Working Days 5 Working Days
ICT Fixture 7 Working Days 5 Working Days
ICT Fixture(w/Program) 10 Working Days 7 Working Days
PDU 15 Working Days 15 Working Days


4. How to use the T_Link software provided by Landrex?

Please click “file” and follow by “open file”, then select the *.brd file that is provided by Landrex. Then follow all instructions from the “help” pull down window.


5. Why are the Net Access Rate and the Coverage Rate different from each other?

Net Access Rate = Testable nets / Total nets
Coverage Rate = Testable Components / Total Components
The calculation methods are different, and yield different results.


6. Can you provide the Test Coverage Rate from the CAD data analysis?

We provide only Net Access Rate after analyzing CAD file. Coverage Rate can be calculated only after the test program is fully debugged.


7. Which software does Landrex use to analyze the data?

Fabmaster


8. How do you define the test probe receptacles height?

The receptacle height is depending on the type of test probe used, the fixture type and the component under tested. Generally, the receptacle height is defined based on the travel of the test probe. It is set to allow a 2/3 of full travel of the test probe.


9. What is the minimum acceptable clearance between test probes? What is the most suitable way of laying out a test pad?

For further details of ”Layout Rule” please contact our sales people.



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