Demands for Producing IPC Class 3 Seminar MITT

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Demands for Producing IPC Class 3! Seminar MITT University 2014 -11 -27 Lars-Olof Wallin

Demands for Producing IPC Class 3! Seminar MITT University 2014 -11 -27 Lars-Olof Wallin IPC European Representative

IPC Part: 7 Introduction to Produce acc to IPC Class 3 How extensive is

IPC Part: 7 Introduction to Produce acc to IPC Class 3 How extensive is it to write a specification?

What expectations do you have of this workshop? The answer is? You hope to

What expectations do you have of this workshop? The answer is? You hope to find some Gold!

I can convert Lead into GOLD!!

I can convert Lead into GOLD!!

Which IPC Standards does is most known? IPC-A-610 E?

Which IPC Standards does is most known? IPC-A-610 E?

Is it OK according to IPC-610 E Class 3?

Is it OK according to IPC-610 E Class 3?

IPC-A-610 E

IPC-A-610 E

It is not OK!!

It is not OK!!

The board didn't work!

The board didn't work!

Rev E Will this book solve the problems? NO!!

Rev E Will this book solve the problems? NO!!

Questions? ? • Please answer the following questions: • Do you have demands for

Questions? ? • Please answer the following questions: • Do you have demands for IPC Class 3 today? • Have you some problems with the solder joint results and or your bare boards?

Why do you have PROBLEMS? The Answer is: Lot of parameters during the entire

Why do you have PROBLEMS? The Answer is: Lot of parameters during the entire production chain!

Number of Combinations 4200 000 000 0 Too Many!!

Number of Combinations 4200 000 000 0 Too Many!!

PWB STENCIL PASTE Digital Data COMPONENTS

PWB STENCIL PASTE Digital Data COMPONENTS

Let us take some examples!

Let us take some examples!

Offset resist window opening up track and possibly touching BGA pad

Offset resist window opening up track and possibly touching BGA pad

Implications of CTE in the Z-direction Copper wall Solder filled via hole Inner layer

Implications of CTE in the Z-direction Copper wall Solder filled via hole Inner layer Crack Greater tendency for cracks betwee inner layer and the wall for wider holes. Greater tendency for barrel crack in thinner via holes (larger aspect ratio)

What can GO WRONG?

What can GO WRONG?

I like complicated functions on a small surface!! Is the Electronic Design the ROOT

I like complicated functions on a small surface!! Is the Electronic Design the ROOT CAUSE? The Electronic Designer

What is IPC-7351 B? My footprints hasn't changed since 1903! Is the CAD the

What is IPC-7351 B? My footprints hasn't changed since 1903! Is the CAD the ROOT CAUSE? The CAD People

Is the Bare Board the ROOT CAUSE? Is PCB OK?

Is the Bare Board the ROOT CAUSE? Is PCB OK?

What do you see here? How many PTH do you have in your PCB?

What do you see here? How many PTH do you have in your PCB?

PWB STENCIL PASTE Digital Data COMPONENTS

PWB STENCIL PASTE Digital Data COMPONENTS

CAM Screen print Is the Screen printing the Loading ROOT CAUSE? Jet printer Loading

CAM Screen print Is the Screen printing the Loading ROOT CAUSE? Jet printer Loading

Pick & Place Is the Pick & Place the ROOT CAUSE? Pick & Place

Pick & Place Is the Pick & Place the ROOT CAUSE? Pick & Place

AOI Unload Reflow Is the Reflow or Wave Soldering the Unload ROOT CAUSE? Vapor

AOI Unload Reflow Is the Reflow or Wave Soldering the Unload ROOT CAUSE? Vapor Phase Pick & Place X-Ray Repair of BGA

Cleaning Wave Soldering AOI Manual Assa Unload Reflow Unload

Cleaning Wave Soldering AOI Manual Assa Unload Reflow Unload

It is many Process Steps! The cause of a bad Solder Joint can be

It is many Process Steps! The cause of a bad Solder Joint can be hard to find!

It is NOT a piece of cake!

It is NOT a piece of cake!

What shall You Do Now? No Control – Just Deliver? Deliver and hope for

What shall You Do Now? No Control – Just Deliver? Deliver and hope for the Best? Start to Repair and Lose €€€?

What can it COST?

What can it COST?

A typical Bare board You are assembling in quantities of: 1000? Costs: - Bare

A typical Bare board You are assembling in quantities of: 1000? Costs: - Bare Board: 3€ each? - Components (BOM): 15€/board? - Assembling, Soldering & Testing: 4€/PCB? 18% Total: 1000 x (3 + 15 + 4) = 22 000€

IPC-A-610 E

IPC-A-610 E

It is not OK!!

It is not OK!!

SUMMARY GO WRONG COST IPC Class 3 What shall You do?

SUMMARY GO WRONG COST IPC Class 3 What shall You do?