English

Not applicable.

Of all faculties

Students will be able to:
 Define basic principles from assembly and inteconnection techniques, explain levels of interconnection.
 Describe sorts and explain methods of assembled joint realisation. Describe and explain factors influencing quality of assembled joint.
 Explain technology procedure of multilayer PCB with microvia. Describe and explain individual production step.
 Explain mechanism of adhesion joint, properties and types of physically hardened and chemically cured adhesives.
 Explain mechanism of solder joint, solder joint requirements, soldering techniques, diferences between tin/lead and lead free solder joint. Explain chemistry and cleaning techniques of PCBś and assembled PCBś.
 Technology analysis of PCB - student is able to choose compatible technology process of PCB realisation, process of components assembly and PCB material.

The subject knowledge on the Bachelor´s degree level is requested.

Not applicable.

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Evaluation of laboratory works - max 15 points, test - max 25 points, final written examination - max 50 points, oral final examination - max 10 points. Written and oral part of final examination are duty. Progress to oral part of final examination is only after receiving min 25 points from written part of final examination. Oral part of final examination is passed with min 4 points.
Examination is oriented to evaluation of received knowledges from interconnection and assembly technology topics and in practical orientation technology analysis of real assembled PCB. Student in this analysis demonstrates ability to choose conforming technology procedure of components assembly and of PCB realisation (step by step) including guestions of applied material.
Requirements for completion of a course are specified by a regulation issued by the lecturer responsible for the course and updated for every year.

1. Interconnection techniques, methods, properties. Levels of interconnection. Base materials for Printed Circuit Boards (PCBś) production, organic, inorganic, reinforcements, resins, copper clad materials. Base materials organic rigid, flexible, rigid/flexible, semiflexible. Properties: electrical, mechanical, thermal, chemical. Standard ČSN EN 61249 – xx – xx. Organic base materials, properties. Base materials inorganic, comparison with organic. Requirements for base materials, latest trends and development in base materials area. MID.
2. Interconnection structures, types. Subtractive, semiaditive and aditive methods of production interconnecton structures. PCBś production - main orientation. Base steps in PCBś production. Technology procedure of single, double and multilayer PCB.
3. Interconnection structures with microvia, SBU methods. PCBś assembly - through hole technology (THT) and surface mount technology (SMT), mixed. Technology procedures. Latest trends in SMT.
4. "Chemistry in assembly" and correct application in process /solder paste, solder alloy, flux, adhesive, conformal coating, packaging material/
5. Interconnection 1-st level, bonding techniques, packaging. (Szendiuch/Starý 2 hrs)
6. Surface mount devices (SMDś), packages, properties, type of leads, IC packages, passive components, elektromechanical devices, BGA packages, construction. (Šandera) (2 hrs.)
7. Adhesives I.
8. Adhesives II Application techniques, screen/stencil printing, dispensing/. Basic for quality in printing, factors.
9. Soldering, solder joint, requirements for solder joint. Soldered joint vs. welded joint vs. joint realised with adhesive - comparison. Methods of soldering. Requirements for quality of placement and soldering acc. to IPC A 610 rev. E.
10. Solder joint reliability. Lead free vs. lead soldering. Wave soldering (mass), nitrogen atmosphere infuence. Manual soldering, principles, soldering tips maintenance. Reflow soldering, methods, forced convection and nitrogen atmosphere influence.Temperature profile measurememts. Thermal management of PCB.
11. Cleaning techniques. Cleaning medias, microemulsion. PCB contamination, measuring. Flux residues and defects.
12. Mechanically realised connections, types, properties.
13. Quality control, methods. Testing of assembled and non-assembled PCBś. Automatic Optical Inspection (AOI). SPI. Statistical tools for quality testing and improvement.

Not applicable.

The aim of the subject is to make students familiar with the problems of Printed Circuit Boards (PCB). Knowlodges espec. from SMT, solder and adhesive joint realisation will be on higher level. Students will have practically closer view for individul factors in each operation and their influence for production process quality.

The content and forms of instruction in the evaluated course are specified by a regulation issued by the lecturer responsible for the course and updated for every academic year.

Not applicable.

Not applicable.

International Standards: ANSI/IPC-A-610 rev. E,The Institute for Electronic and Packaging Electronic Circuits, USA, ANSI/IPC-CM-770C, ANSI/IPC-SM-782 (EN)
Lea, C.:A Scientific Guide to Surface Mount Technology, Electrochemical Publications Ltd, GB 1998 (EN)
Starý, J., Presentations in pdf (EN)
Wassink, R. J. K.:Manufacturing Techniques for Surface Mounted Assemblies,Electrochemical Publications Ltd, GB 1995 (EN)

Hwang, J., S.:Environment-Friendly Electronics: Lead Free Technology, Electrochemical Publications Limited 2001, ISBN 0 901150 401 (EN)
Starý,J.,Šandera,J.,Kahle P.:Plošné spoje a povrchová montáž, PC DIR-REAL Brno, 1999 (CS)