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Checklist for SMT Process
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ItemY/N
(Check or not)		ProcessNo.QuestionCriterionDistributionComment
(All items must be commented
and Evidence)		CheckNote
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SMT ProcessYManagement of SMT material1Do you check the BGA/IC/PCB vacuum packaging status?1. BGA/IC/PCB should income in vacuum packaging
(Use ESD prevention wrapping material and band)		○ : Compliance, ▲ : Middle, X : Non-Compliance1. Visual check of vacuum packaging status
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SMT ProcessY2Does MSL component manage the time based on standards?Incoming parts after vacuum packaging should check the moisture
(store the indicator card and manage history - 24Hr storage)		○ : Compliance, ▲ : Middle, X : Non-Compliance1. Check the indicator card
2. Check at the site (MSL management sheet)
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SMT ProcessY3Does it comply with BGA/IC/PCB management standards?After the production quantity is released, the remaining quantity should be immediately vacuum-packed (material warehouse)○ : Compliance, ▲ : Middle, X : Non-Compliance
Check compliance with standard
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SMT ProcessY2. The unpacked IC shipped from the field should be used within 24 hours
(time management by level) 		○ : Compliance, ▲ : Middle, X : Non-Compliance
Check compliance with standard
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SMT ProcessY3. If not available within 24 hours
- Vacuum packaging and storage within 30 minutes after baking
(Refer standard of baking according to MSL level or requirements of maker)
*Opened ICs waiting for use are stored in a designated place		○ : Compliance, ▲ : Middle, X : Non-Compliance
Check compliance with standard
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SMT ProcessY4. The PCB should store on a flat surface○ : Compliance, ▲ : Middle, X : Non-Compliance
Check compliance with standard
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SMT ProcessY4Is Tray IC managed by Part No.?Tray IC should use tag for identification Part No
It should manage history when repacking the tray (packaging date, time, quantity)		○ : Compliance, ▲ : Middle, X : Non-Compliance
Check Identification mark
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SMT ProcessY5Do you comply with the warehouse temperature/humidity standards?1. Temperature (25±3℃), humidity 30~60%○ : Compliance, ▲ : Middle, X : Non-Compliance
Check at the site
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SMT ProcessY. Check temperature/humidity check sheet (twice a day, day/night)○ : Compliance, ▲ : Middle, X : Non-Compliance
Check at the site
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SMT ProcessY3. Temperature/humidity upper/lower limit should be managed○ : Compliance, ▲ : Middle, X : Non-Compliance
Check at the site
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SMT ProcessY6Do you comply with first-in/first-out management when using materials?1. It should be managed first-in/first-out○ : Compliance, ▲ : Middle, X : Non-Compliance1. Check the material incoming date
(shipping company month label)
2. Place materials in a structure that allows
first in / first out (recommended)
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SMT ProcessY7Do you manage dry chamber temperature/humidity check sheet?1. Dry Chamber internal temperature/humidity
- Temperature: 25±5℃. Humidity: less than 10%		○ : Compliance, ▲ : Middle, X : Non-Compliance1. Check the calibration of temmometer and hygrometer
2. Check the temperature/humidity check sheet
3. Temperature/humidity can be checked without opening the chamber door
4. Close the door and check if it reaches 10% within an hour
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SMT ProcessYTemperature/humidity management by c/sheet : Twice a day (day/night)○ : Compliance, ▲ : Middle, X : Non-Compliance1. Check the calibration of temmometer and hygrometer
2. Check the temperature/humidity check sheet
3. Temperature/humidity can be checked without opening the chamber door
4. Close the door and check if it reaches 10% within an hour
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SMT ProcessY3. Temperature/humidity upper/lower limit should be managed○ : Compliance, ▲ : Middle, X : Non-Compliance1. Check the calibration of temmometer and hygrometer
2. Check the temperature/humidity check sheet
3. Temperature/humidity can be checked without opening the chamber door
4. Close the door and check if it reaches 10% within an hour
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SMT ProcessY4. Temperature/humidity can be checked without opening the equipment door○ : Compliance, ▲ : Middle, X : Non-Compliance1. Check the calibration of temmometer and hygrometer
2. Check the temperature/humidity check sheet
3. Temperature/humidity can be checked without opening the chamber door
4. Close the door and check if it reaches 10% within an hour
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SMT ProcessY8Do you manage the incoming/outgoing of dry chamber equipment?In/out and time of equipment internal parts should be managed○ : Compliance, ▲ : Middle, X : Non-Compliance
Check the C/sheet
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SMT ProcessYIC Memory9(Common) Do you have work instructions for each IC?It should have a Own work instructions based on IC model○ : Compliance, ▲ : Middle, X : Non-Compliance
Check the own work instrucments
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SMT ProcessY10(Common) Are you performing sampling inspection of the copied model?One IC per tray should be inspected (manual inspection)○ : Compliance, ▲ : Middle, X : Non-Compliance
Check at the site
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SMT ProcessY11(Auto) Is the loading area of the copied model and the waiting model separated?The copy-completed model and the waiting model loading area should be separated○ : Compliance, ▲ : Middle, X : Non-Compliance
Check at the site
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SMT ProcessY12(Manual) Is the copy program the latest version?The program should be the latest version○ : Compliance, ▲ : Middle, X : Non-Compliance
Check the program version
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SMT ProcessY13When creating Bin file→ Project, is it compared with the Option (Device Setting) value and the work instructionsl?It should Match with the work instructions○ : Compliance, ▲ : Middle, X : Non-Compliance
Check the work instructions
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SMT ProcessYSolder Paste14Is the solder paste in/out managed?1. Income date / inputed date to refrigerator / Outgoing date to refrigerator / Mixing time / Opened date○ : Compliance, ▲ : Middle, X : Non-ComplianceCheck the tag or system management check
1. Visual check, management by incoming date/lot
2. Check the validity period whichbe secured at least 2 months
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SMT ProcessY2. It should be managed from storage to disposal○ : Compliance, ▲ : Middle, X : Non-ComplianceCheck the tag or system management check
1. Visual check, management by incoming date/lot
2. Check the validity period whichbe secured at least 2 months
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SMT ProcessY3. The validity period should be secured at least 2 months at the time of stock○ : Compliance, ▲ : Middle, X : Non-ComplianceCheck the tag or system management check
1. Visual check, management by incoming date/lot
2. Check the validity period whichbe secured at least 2 months
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SMT ProcessY15Does it comply with refrigerated storage standards?1. Refrigerator temperature: 1~10℃ (Recommended: 5±3℃ management)○ : Compliance, ▲ : Middle, X : Non-Compliance1. Check the calibration of thermometer
2. Check Temperature C/Sheet
3. Check First in/first out
4. Check that High/low temperature solder classification management
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SMT ProcessY2. Temperature Check Sheet twice a day (recorded day/night)○ : Compliance, ▲ : Middle, X : Non-Compliance1. Check the calibration of thermometer
2. Check Temperature C/Sheet
3. Check First in/first out
4. Check that High/low temperature solder classification management
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SMT ProcessY3. Temperature upper/lower limit should be managed○ : Compliance, ▲ : Middle, X : Non-Compliance1. Check the calibration of thermometer
2. Check Temperature C/Sheet
3. Check First in/first out
4. Check that High/low temperature solder classification management
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SMT ProcessY4. It should be managed first-in/first-out○ : Compliance, ▲ : Middle, X : Non-Compliance1. Check the calibration of thermometer
2. Check Temperature C/Sheet
3. Check First in/first out
4. Check that High/low temperature solder classification management
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SMT ProcessY5. high/low temperature solders should Separate and be managed○ : Compliance, ▲ : Middle, X : Non-Compliance1. Check the calibration of thermometer
2. Check Temperature C/Sheet
3. Check First in/first out
4. Check that High/low temperature solder classification management
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SMT ProcessY16Does the Solder Paste mix in machine?RPM management of mix machine
①400 RPM : 150 sec
②1,000 RPM : 45 sec		○ : Compliance, ▲ : Middle, X : Non-Compliance
Check at the site (manual or system)
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SMT ProcessY17Do you comply with the conditions of use of Solder Paste?1. Storage in room temperature : 2 ~ 12 hour
(2Hour ↓ : Can't be used, 2~12Hour Not opened solder : Re-refrigerated,
12Hour ↑ : Disposal)		○ : Compliance, ▲ : Middle, X : Non-Compliance
Check the standards
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SMT ProcessY2. Remained solder after opening : Use within 12 hour
(12Hour ↓ : Re-refrigerated after sealing, 12Hour ↑ : Disposal)		○ : Compliance, ▲ : Middle, X : Non-Compliance
Check the standards
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SMT ProcessY3. Input to the screen printer : Use within 4 hour (4Hour ↑ : Disposal)○ : Compliance, ▲ : Middle, X : Non-Compliance
Check the standards
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SMT ProcessY4. Printed solder on PCB : Input SMT line within 2 hour
(2Hour ↑ : Re-print after cleaning)		○ : Compliance, ▲ : Middle, X : Non-Compliance
Check the standards
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