SMT Line Conversion and QA buyoff

Creation date: 1/29/2026 9:53 PM    Updated: 6/8/2026 10:19 PM   buyoff line conversion qa smt

Process Material Setup

This is the step to register the process material that is going to be used for the production. User will need to register, which means generate new lot info for process material. Then only user can begin the thawing and spinning process. The process material will be used at SMT line conversion stage

1.Registration process material

1. To register process material that will be stored into freezer.

2. In menu, go to Production -> Process Material -> Registration

3. Click Add

4. Select Container Type, Freezer Name, Name, Status.

5. Scan process material lot number barcode, click Save.

Example of process material lot number:

Once process material successfully registered, system will display below message on the top right corner:

Error messages:

- If no information entered below message will appear:

- Wrong lot number being scan. Please confirm the correct barcode for lot number to scan.

-The lot number does not match the process material name

II. Thawing and Spinning

Once process material taken out from freezer for thawing and spinning, operator needs to scan out in system.

1.In menu, go to Production -> Process Material -> Thawing and Spinning.

2.Scan in the process material 2D barcode. Click Search.

3. Click Scan Out.


Once scan out is successful a message will display on the top right corner: 

After done thawing and spinning, operator will need to scan in the system again.

4. In menu, go to Production -> Process Material -> Thawing and Spinning.

5. Scan in the process material 2D barcode. Click Search.

6. Click Done Normalization.

Once Done Normalization button, a successful message will be displayed on the right top corner.

7.Back to the same page and scan in the process material 2D barcode.

8.Click Done Spinning


A successful message will be shown after you click done spinning button

When you search back the process material in the page , it will show the status as Finish Spinning and the Scan Out button and Done Spinning buttons will not be clickable

You can check the process material history in Inquiry > Process Material History


If process material does not have enough preparation time, an error message will be shown:

Please allow for enough processing time to proceed.

Once successfully done spinning a message will display on the top right corner:

Line Conversion

1. Start line conversion by clicking Scan Work Order button

Production -> SMT Line Conversion

2. Scan in Process material barcode.

System will then ask the operator if this is a model conversion. Click Confirm.

After confirming a message will show on the top right corner:

A stop production for line conversion will be issued after successfully starting line conversion.

You can view the stop production record at Production control > Line Control > Resume Production

You can view the assign process material record in Inquiry > Work Order Profiler History


3.Click Checklist button to answer checklist

4. Click on the question set to answer.



If the checklist is all answered correct, the checklist question button will be showing green color and a success message is displayed.

Checklist button will be grey after you answer all the checklist questions


5.Do Volume check by clicking the volume Check button

6. If process material is enough, select yes and click submit.

 If process material is not enough and require to top up, select no and scan in process material serial number, then click Submit.

7. Do process material SPC check by clicking SPC check button

8. Key in the reading values and click submit.

After submitted system will show the screen for process material height chart. From here operator can click Search to display SPC chart.


9. Do SPC Reflow Check 

10.Key in the reading values and click submit.

11.After submitted system will show the screen for process material height chart. From here operator can click Search to display SPC chart.


12. Re-Buy Off Board (Optional, when you fail QA buyoff)

Click on Re-Buy Off board button will allow creation of another new panel to be able to proceed in production to QA buy off. Maximum panel allowed is 5 panels.

Enter OCAP and click Submit button. This action cannot be edit, so be careful before submitting the result.

QA Buyoff

13. QA buyoff 

Production -> Production Control -> QA Buy Off

Fill in the line, work order, operation and click submit

Click the Data Collection Check List link to answer QA checklist questions


Notice that QA buyoff will have a (QA) added behind the title to show this is a QA buyoff data collection

Once you finish answering the checklist correctly it will show a success message and question button will become green and it will show red if you have any incorrect answers.

14.Once you answer all questions correctly, click Pass to complete the buyoff

15.Click OK to confirm the buyoff

After QA buy off successful a message will show at the top right corner:

After pass QA buy off, the stop production will be removed.
You can view your buyoff record in Report > Line Conversion History

16. If you want to fail buyoff, you will need to click the Fail button

User will need to type in the CAR and click confirm to fail the buyoff

17. Press confirm to fail the buyoff

After you fail the QA buyoff, user will be able to start another QA buyoff and redo the QA buyoff questions.

Finish the question and now pass the QA buyoff.

In Inquiry > Data Collection & Genealogy Inquiry, user can view past answered QA checklist answers

In Production control > QA Buyoff History, user can view their QA buyoff results


18. If you want to use manual scan sn during QA buy off

Just scan the serial number on the board and click Add button. The record will be saved into the grid. Once number of record equal to number of quantity cavity in the board, QA section will show the Pass Fail button. Continue as the flow mentioned above.


SMT line conversion without process material

Rule Hierarchy Setup

If you want to do SMT line conversion without process material, you will need to maintain a rule hierarchy ‘StartConversionWithoutProcessMaterial’.

You ask support to check about this rule hierarchy.

Setup before the Line Conversion

Once you have the rule hierarchy, you will need to setup

1. Process Material Rule

2. Process Material in the product management page


You can refer to the Jit Bit documentation for this setup.

mtrac Helpdesk - Setup process material rule and product process material - Knowledge base

Remember to refer to the *** if you do line conversion without the line process material check.

In your route step, remember to check first piece verification so that you can do buy off, check process material if this step will need to input process material like SPI-TOP, for AOI route step you can remove the process material control check

Once you have setup the process material rule and product management page, you can create a work order and proceed with the SMT Line Conversion.

Line Conversion

Production -> SMT Line Conversion


1. Fill in the line number and work order number, and select operation, if your work order is found on this line, you will be able to click the scan work order button.

2.If the rule hierarchy is active, you should be seeing a Start Conversion button available to you.

*If you have this error after set the rule hierarchy, please check if the product process material part number is matched with the process material rule that is currently active.

3.A successful line conversion start will be like this, then now you can start to do checklist or create unit


*In SMT line conversion, up to 5 panels are allowed for the line conversion, you can request more panel from the Re-Buy Off Board button.

A stop production will be issue once you have started the line conversion, it will be auto removed once QA buyoff is passed.

You can view the history at Report > Line Conversion History

4.Now you are allowed to transact 1 panel in the PTI screen.

5. Back at the line conversion page, user could now choose to continue the checklist, by clicking the Checklist button.

 

When this turns yellow it means you have unfinished questions

Green means all questions are correct

 Red means at least 1 questions answer is incorrect

You can view your past data collection at Inquiry> Data Collection & Genealogy Inquiry

6.After finish answering the checklist, user will be able to go to start QA buyoff at


Production > Production Control > QA Buy Off

Once you click submit button, it will proceed to this screen, then click the Data Collection Check List link to answer the QA checklist questions.

Answer all the questions, notice that there is a QA wording to make sure this is a QA buyoff data collection checklist

After answering all questions, go back to the QA buyoff page and click you want to fail or pass this QA buyoff

Once successfully completed buyoff it will show up this message.
User will be able to transact more units now that the stop production has been removed.

You can view the history of buyoff in the Production > Production Control > QA Buy Off History

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