Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hian, S.T.S. Chopin, S. Skh Ali, S.S. |
| Copyright Year | 2013 |
| Description | Author affiliation: Freescale Semicond. (M) Sdn. Bhd., Petaling Jaya, Malaysia (Hian, S.T.S.; Chopin, S.; Skh Ali, S.S.) |
| Abstract | In recent years there were numerous reported failures of Cu wire packages after moisture related reliability stress such as biased HAST (highly accelerated stress test) due to corrosion of copper-aluminum intermetallics by trace amounts of chlorine in mold compound. As such mold compound selection and certification are of critical importance to ensure good reliability of packages with copper (Cu) wire. In this paper, we report continuity opens after 192 hours of biased HAST at 130C/85% RH on two devices (Y and P) using existing production green mold compounds. The failure was due to a large additive particle adhering to the Palladium-Copper (Pd-Cu) ball bond. Modifications were made in mold compound raw material milling or crushing process to ensure a more homogenous blend of particles to eliminate the occurrence of such large additive particles in the mold compound. Despite this, large additive particle are still found occasionally as the raw material supplier could not effectively control the maximum size of the particles. Further improvements were then made by using a super homogenizer milling process on blended compound ingredients and a fine sieve to sieve out the large particles from the formulation. This approach was found to work exceptionally well with excellent moldability, reliability and delamination performance. In conclusion, optimum compound formulation and compound fabricating processes are essential factors to ensure reliable performance of Pd-Cu devices in Low Quad Flat Packages (LQFP). |
| Sponsorship | IEEE Singapore Sect. |
| Starting Page | 565 |
| Ending Page | 568 |
| File Size | 1121226 |
| Page Count | 4 |
| File Format | |
| e-ISBN | 9781479928347 |
| DOI | 10.1109/EPTC.2013.6745783 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-12-11 |
| Publisher Place | Singapore |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Additives Compounds Electromagnetic compatibility Wires Copper Materials reliability |
| Content Type | Text |
| Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|