Logo Waterfall Technologies Unlock the Potential of the Latest Surface Mount Technology
 Home
 Flip Chip Evaluation Kits
 Client List
 Registration
 Articles Published
 Analytical Lab Services
 SMT Workshops
 Computer Based
 In-house Workshops
 Public Programs
 Contact Us
OVERVIEW

 DCA Packaging - Flip Chip & Chip -On Board

  _______________________________ WORKSHOP 2
  
28 & 29 June , 2007.
SWISSOTEL THE STAMFORD, SINGAPORE

Direct Chip Attachment (DCA) technologies involve merging the interconnection of bare dies directly into the Surface Mount Assembly in co-existence with other packaged components. DCA has gained tremendous importance in the evolving field of SMT with 'Bare Dies' being thought of by many as the next ‘Wave of Packaging'. The current product driving forces of 'smaller' but also 'faster' and 'cheaper' place printed circuit board (PCB) real estate at a premium.

Manufacturers are therefore forced with the choice of making the components smaller to meet the space restrictions. Unpackaged bare dies, with no signal delays associated with the device package offer the smallest and fastest component footprint available befitting the needs of today's products.

DCA is thus becoming a common design consideration in modern electronic products. One end of the spectrum principle uses of bare dies are in the MCM, COB and Flip Chip applications for instance in the communications and consumer applications, both being very large market segments, and other end of the spectrum, low cost products characterized by handhelds, toys and games, for example. Being a recent and fast evolving technology, however, knowledge in this area has remained generally scarce. It is vital for manufacturers moving into the future to acquire and understand the impact of DCA technologies and how to merge it into mainstream SMT processes.

A B O U T   T H E   W O R K S H O P

The objective of this workshop is to educate the participants into the key aspects of DCA. Firstly the workshop will cover and provide an understanding of the selection criterion and considerations for bare dies, their quality and acquisition considerations. The standards governing this area will be reviewed in terms of impacts to both manufacturers and producers. The second part of the workshop will deal with the two aspects of DCA namely Flip Chip (FC) and Chip-On-Board (COB). Both attachment technologies will be dealt with in terms of positioning, design guidelines and attachment considerations, usage, equipment, process development and analysis with real life examples

WHAT   YOU   WILL   LEARN  
This is one unique workshop that has the bandwidth to take you into Direct Chip Attachment from design, process, implementation and failure analysis. The flavor is SMT but every SMT engineer involved in Direct Chip Attachment needs to know what functions are good candidates for DCA from the point of view of application, sizing and reliability. You will learn not only about the design rules, the selection and procurement and also the various attachment processes merging Bare Dies into mainstream SMT. In addition, this workshop will teach the various options to implement Flip Chip and Chip-On-Board and where they are best positioned to serve their respective needs. You will further learn how to analyze failures, the different failure mechanisms and modes and the proper techniques for analysis. To help you understand the concept you will see many micro-graphs and cross sections. At the end of this workshop, the participants will gain significantly in the know-how of Direct Chip Attachment and be able to implement DCA, analyze and improve your process yields.

MODULE 1 – DIRECT CHIP ATTACHMENT

Overview
Pro’s & Con’s
Applications
Cost Factors
Foot Print Efficiency
Flip Chip Vs. Chip-On-Board

MODULE 2 – BARE DIES

Selection
Quality Considerations
Known Good Die (KGD) & Unknown Bad Die (UBD)
Procurement Standards
Road Map

MODULE 3 – FLIP CHIP DESIGN RULES

Bump Pitches
Bump Heights
Edge Clearance
Array Vs. Peripherals
Types of Under Bump Metallization (UBMs)
UBM Parameters
Bumping Processes
Bump Shear Strengths

MODULE 4 – FLIP CHIP ATTACHMENT

Merging with SMT Process
Process Flow Options
Understanding Underfills
Underfilling Trends
Developing & Qualifying The Process
Reworking Flip Chip

MODULE 5 – RELIABILITY & ANALYSIS

Reliability Factors
Failure Mechanisms & Modes
Electromigration
Micro-sectioning – How To’s
Analyzing Failures

MODULE 6 – CHIP-ON-BOARD

Applications
Positioning
Design Rules – Pad Design & Layout
Design Examples

MODULE 7 – ATTACHMENT

Bonding Process
Ball Bonding Vs. Wedge
Tools & Equipment
Bonding Variables
Merging COB In SMT
Process Flow Options
Pro’s & Con’s
Reworking Chip-On-Board

MODULE 8 – CONCLUSION

Summary of Key DCA Success Factors
Future Reading
Information Resources
References

WHO  SHOULD  ATTEND

This is a high level program to address the needs of a range of industries, primarily SMT that are involved with DCA, but certainly include many back-end and packaging areas that deploy DCA as an enabling technology in the manufacturing of BGAs, CSPs and other Micro Array Devices, etc. The latter will also benefit from understanding how the SMT industry perceives bare dies usage in embedding into SMT as well as use of these technologies as enablers in packaging products. The target audience will comprise personnel from Engineering, Process, Manufacturing, Assembly, Failure Analysis and Quality disciplines

A CCD - Microscope is provided for live-on-screen display in our sessions.  Bring along your boards and process issues for analysis & discussion !