SMI (Solder Paste Inspection ) Inline Work Instruction (Procedure)

alonFAI

Involved In Discussions
#1
Hi guys

My company is going to purchase New Inline SMI (solder paste inspection) machines and I need to write a procedure or work instruction for these machines. INCLUDING A PROCEDURE REGARDING COLLECT DATA FROM THESE MACHINES FOR CREATING SPC AND SO ON...
does anyone have a procedure he can send me, so I'll have something:thanx::bonk: to start work with?

thank you !!!
Alon
 
Elsmar Forum Sponsor
B

Bjourne

#2
Re: SMI (SOLDER PATE INSPECTION ) INLINE WORK INSTRUCION/PROCEDURE

What are you trying to accomplish by doing solder paste inspection?

There are a number of 2D(which uses cameras) or 3D systems (lasers) that can do that but it will depend on what are your requirements and the parameters that will be a factor in what you want to accomplish. The 2D system will evaluate solder paste/PCB pad converge, the 3D system will evaluate coverage and solder paste volume. Some say that evaluating solder paste volume is the more robust method of process control.

Your cycle time will be affected and must also be considered unless you have the top of the line equipment that can perform post print inspection and other tasks simultaneously. Determining the quantity of the solder deposits to inspect and the method(either 2D or 3D) along with the critical process parameters then your good to go. As this is an inspection machine do perform your Gauge R & R studies to evaluate the capability of the inspection system to measure what must be measured.

I am sure the buy-off or pre-test qual of the machine has covered all the necessary parameters and control factors...you can use that as one of the elements as basis. From there you will get an idea of what are the critical parts/areas/details that need attention armed with the defects that you have with similar machines or process that you have. In absence of similar machine, the critical process parameters will do. Your control plan/FMEA should tell you that.

In addition you may require the machine vendor to provide you with some documents (on their end) that you/your process may need such as machinery/tool FMEA(that can start you up with a control pan for the particular machine --though your customer may not need that --just mentioning as we are working out one at the moment), PM requirements, Spare/Replacement parts as well as accredited vendors, safety procedure, environmental control for the machine etc. You can also get some very good info on your polymer supplier from which you will get you solder paste. Material data sheets from them (like viscosity considerations, and the like.

Do check out the links below as you may get some good info for what you need. Good luck :)

SMT SOLDER JOINT RELIABILITY/WORKMANSHIP ENVIRONMENTAL
TEST RESULTS CORRELATION


SMTA Publication (not free)

All solder pastes are not created equal

Activate your solderability testing program


Attention to details : combat common problems in the assembly process and in equipment selection


Journal of SMT Articles


SMT Solder Paste Printing (you can send emal to the author)


Implementing In-lne Solder Paste Inspection


Automatic Optical Inspection of Soldering


IPC Standards Reference Guide


Solder Paste Evaluation Screening Procedure

Elsmar Forum_MSA For Solder Paste Inspection Machines
-- You can ask Miner on this as he was the key person who helped jpxusked on that thread.

Solder Paste Analysis: Meeting New Standards


Process Control for Solder Paste Deposition


Enhancing yield with flux and solder paste process control


SOLDER PASTE DEPOSITION PROJECT REPORT


PROCESS CONTROL FOR SOLDER PASTE DEPOSITION(not free)


SPC_SMT(with FMEA samples etc)

Gauge Repeatability & Reproducibility Study for a 3-D Solder Paste Inspection System


:)
 
Last edited by a moderator:

alonFAI

Involved In Discussions
#3
Re: SMI (SOLDER PATE INSPECTION ) INLINE WORK INSTRUCION/PROCEDURE

You are truely amazing sir. Thanks again for another super proffesional answer!!! :thumbup::)
 
B

Bjourne

#4
Re: SMI (SOLDER PATE INSPECTION ) INLINE WORK INSTRUCION/PROCEDURE

You are truely amazing sir. Thanks again for another super proffesional answer!!! :thumbup::)
Glad I could help. Good luck :) Do encourage some of your engineer friends also to post here not only questions but also solutions or experiences so that others may also get some ideas please :) And maybe when your all set up and finished with your "dilemma" you can share it here together with some sample docs to spare for the members :) Just a thought. You never know..might be you who can help some newbie :)
 
Last edited by a moderator:
Thread starter Similar threads Forum Replies Date
V Process, component or full product re-qualification: leaded to unleaded solder Qualification and Validation (including 21 CFR Part 11) 8
E Solder thermal profiles for PPAP - Automotive IATF 16949 - Automotive Quality Systems Standard 1
C Solder Pot Standards - Solder Pot Adherence Various Other Specifications, Standards, and related Requirements 9
L Replacement of SAC305 Solder for SN100C Lead Free Solder? Manufacturing and Related Processes 1
B RoHS Directive 2014/5/EU Leaded Solder Exemption RoHS, REACH, ELV, IMDS and Restricted Substances 2
alonFAI Cpk for Solder Paste Height Statistical Analysis Tools, Techniques and SPC 5
D Will A Few Failed Solder Joints Make Me RoHS Non Compliant? RoHS, REACH, ELV, IMDS and Restricted Substances 9
P Does lead free solder rust? Manufacturing and Related Processes 1
somashekar Am I good to claim RoHS for my product? Solder Content RoHS, REACH, ELV, IMDS and Restricted Substances 8
AmandaMusser How are Storage Requirements Determined for Epoxy, Paste, Solder, etc. ISO 13485:2016 - Medical Device Quality Management Systems 6
J MSA For Solder Paste Inspection Machines Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 16
G How to confirm if the Solder used contains Silver? Manufacturing and Related Processes 7
R Spacing between the solder eyes of the fuse input/output leads IEC 60601 - Medical Electrical Equipment Safety Standards Series 17
K Calibration Vendor for Wave Solder Optimizer/Profiler General Measurement Device and Calibration Topics 4
U Validation of Wave Solder Process - PCBA for Medical Products Qualification and Validation (including 21 CFR Part 11) 7
C Can SEM or other methods tell if reballed Solder spheres are Leaded or RoHS Manufacturing and Related Processes 3
L Sample of Solder supplied with PCB by supplier - What is this sample for? Manufacturing and Related Processes 9
B How to Determine the Proper Solder Class Manufacturing and Related Processes 5
S Which type of study would be better for Solder Paste Height Measurement system Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 10
P Design an experiment to optimize the PCB solder reflow profile Design and Development of Products and Processes 4
D Need help on correct material composition of solder resist or solder mask in PCB for APQP and PPAP 1
C Plating process not covering solder, any ideas? Manufacturing and Related Processes 4
B Mix of leaded & leadfree components - Affected Solder Joints Quality - Vibration Manufacturing and Related Processes 3
Q Qualifying Persons to Reflow Solder by hand - Circuit boards Various Other Specifications, Standards, and related Requirements 3
1 IPC/EIA J-STD 001 to 004 for Solder Specification Various Other Specifications, Standards, and related Requirements 9
S Hand Solder Board/Component Temperature Requirements for Repair Various Other Specifications, Standards, and related Requirements 7
J Gage R&R - Operators scanning in defect codes - PCB w/various solder joint defects Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 2
J Shelf life control - Examples: solder paste, moisture sensitive device, epoxy Nonconformance and Corrective Action 3
A Solder Technician / Inspector - How to get Certified to NASA-STD-8739.3(.7) Professional Certifications and Degrees 12
R IMDS (Automotive MSDS) for Lead Free Components and Solder RoHS, REACH, ELV, IMDS and Restricted Substances 10
C Flow Solder Control Chart - I believe I need an Xm-R chart Statistical Analysis Tools, Techniques and SPC 3
C PCB (Printed Circuit Board) Assembly - Wave Solder Capability Statistical Analysis Tools, Techniques and SPC 6
A Minitab - Using the INSERT command to copy-paste text from and to a worksheet Using Minitab Software 6
A Copy-Paste in Minitab using Session Commands Using Minitab Software 5
R Para 4.2.2 b) Referenced Documents - Adequate referencing? Copy and Paste? ISO 13485:2016 - Medical Device Quality Management Systems 5
V Disabling Copy Paste option in MS Word After Work and Weekend Discussion Topics 30
M Is Dental Impression Paste (Zinc Oxide and Eugenol) a Drug 21 CFR Part 820 - US FDA Quality System Regulations (QSR) 8
A Prototype Resin Transfer Moulds - Paste Layer Thickness - Construction Manufacturing and Related Processes 2
J Z (Archived) Copyright - Cut and Paste Copyright Issues Elsmar Cove Forum ToS and Forum Policies 46
C PPAP Capability Study - Infrequent batches - Conductor paste APQP and PPAP 6

Similar threads

Top Bottom