Demands for Producing IPC Class 3 Seminar MITT
- Slides: 71
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 it to write a specification?
What expectations do you have of this workshop? The answer is? You hope to find some Gold!
I can convert Lead into GOLD!!
Which IPC Standards does is most known? IPC-A-610 E?
Is it OK according to IPC-610 E Class 3?
IPC-A-610 E
It is not OK!!
The board didn't work!
Rev E Will this book solve the problems? NO!!
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 production chain!
Number of Combinations 4200 000 000 0 Too Many!!
PWB STENCIL PASTE Digital Data COMPONENTS
Let us take some examples!
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 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?
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 ROOT CAUSE? The CAD People
Is the Bare Board the ROOT CAUSE? Is PCB OK?
What do you see here? How many PTH do you have in your PCB?
PWB STENCIL PASTE Digital Data COMPONENTS
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
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
It is many Process Steps! The cause of a bad Solder Joint can be hard to find!
It is NOT a piece of cake!
What shall You Do Now? No Control – Just Deliver? Deliver and hope for the Best? Start to Repair and Lose €€€?
What can it COST?
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
It is not OK!!
SUMMARY GO WRONG COST IPC Class 3 What shall You do?
- Ipc2221b
- Ipc class 3 soldering
- Ipc600
- Plan sverige mitt nya hem
- Persoonapronominit
- Mitt i naturen intro
- Hopning exempel
- Mitt helsenorge
- Possessiva reflexiva pronomen
- Margo mitt
- Uu studentportal
- Estonia pisa
- Teateret mitt
- Mitt kommunikationspass
- Principles of training individuality
- Demands and capacities model
- Needs wants and demands
- Pegawai pemasaran
- A stock of items held to meet future demands.
- Management demands of international growth
- You looked pretty ugly in that dress.
- Unit 12 level g antonyms
- Service output demand
- Paralinguistic demands
- Management demands of international growth
- Good design demands good compromises
- When backed by buying power wants become
- Building basic health skills
- Edward jenner
- An ion source is producing 6li ions
- Situation producing questions
- A factory has 20 assembly line producing
- Kumar is producing the photoelectric effect by using
- Process specification example
- A goal of producing process specifications is to
- Seed producing vascular plants
- Producing for dummies
- Gametophytes have gamete-producing organs called _____.
- A farmer wanted to rid his apple
- A goal of producing process specifications is to:
- Structured english in system analysis and design
- How to write off fixed assets
- Kontinuitetshantering
- Typiska drag för en novell
- Nationell inriktning för artificiell intelligens
- Ekologiskt fotavtryck
- Varför kallas perioden 1918-1939 för mellankrigstiden
- En lathund för arbete med kontinuitetshantering
- Personalliggare bygg undantag
- Vilotidsbok
- Sura för anatom
- Vad är densitet
- Datorkunskap för nybörjare
- Tack för att ni lyssnade bild
- Debatt mall
- Autokratiskt ledarskap
- Nyckelkompetenser för livslångt lärande
- Påbyggnader för flakfordon
- Tryck formel
- Publik sektor
- Jag har nigit för nymånens skära
- Presentera för publik crossboss
- Vad är ett minoritetsspråk
- Plats för toran ark
- Treserva lathund
- Epiteltyper
- Bästa kameran för astrofoto
- Cks
- Verifikationsplan
- Mat för idrottare
- Verktyg för automatisering av utbetalningar
- Rutin för avvikelsehantering