Industry News | 2019-05-31 08:50:57.0
Non-destructive testing of 3D packages with scanning acoustic microscopes identifies defects down to sub-micron level for 100% inspection, failure analysis
Industry News | 2019-05-31 08:56:07.0
Non-destructive testing of 3D packages with scanning acoustic microscopes identifies defects down to sub-micron level for 100% inspection, failure analysis
Technical Library | 2016-08-11 15:49:59.0
The challenge for 3D IC assembly is how to manage warpage and thin wafer handling in order to achieve a high assembly yield and to ensure that the final structure can pass the specified reliability requirements. Our test vehicles have micro-bumped die having pitches ranging from 60um down to 30um. The high density of pads and the large die size, make it extremely challenging to ensure that all of the micro-bump interconnects are attached to a thin Si-interposer. In addition, the low standoff between the die and interposer make it difficult to underfill. A likely approach is to first attach the die to the interposer and then the die/interposer sub-assembly to the substrate. In this scenario, the die/interposer sub-assembly is comparable to a monolithic silicon die that can be flip chip attached to the substrate. In this paper, we will discuss various assembly options and the challenges posed by each. In this investigation, we will propose the best method to do 2.5D assembly in an OSAT(Outsourced Assembly and Test) facility.
Technical Library | 2015-12-02 18:32:50.0
(Thermal Compression with Non-Conductive Paste Underfill) Method.The companies writing this paper have jointly developed Copper (Cu) Pillar micro-bump and TCNCP(Thermal Compression with Non-Conductive Paste) technology over the last two+ years. The Cu Pillar micro-bump and TCNCP is one of the platform technologies, which is essentially required for 2.5D/3D chip stacking as well as cost effective SFF (small form factor) package enablement.Although the baseline packaging process methodology for a normal pad pitch (i.e. inline 50μm) within smaller chip size (i.e. 100 mm2) has been established and are in use for HVM production, there are several challenges to be addressed for further development for commercialization of finer bump pitch with larger die (i.e. ≤50μm tri-tier bond pad with the die larger than 400mm2).This paper will address the key challenges of each field, such as the Cu trace design on a substrate for robust micro-joint reliability, TCNCP technology, and substrate technology (i.e. structure, surface finish). Technical recommendations based on the lessons learned from a series of process experimentation will be provided, as well. Finally, this technology has been used for the successful launching of the company FPGA products with SFF packaging technology.
HALT Testing of Backward Soldered BGAs on a Military Product Online Version SMTnet Express, December 10, 2015, Subscribers: 23,782, Members: Companies: 14,767, Users: 39,402 Packaging Technology and Design Challenge for Fine Pitch Micro-Bump Cu
HALT Testing of Backward Soldered BGAs on a Military Product Online Version SMTnet Express, December 10, 2015, Subscribers: 23,782, Members: Companies: 14,767, Users: 39,402 Packaging Technology and Design Challenge for Fine Pitch Micro-Bump Cu
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/dage/technical-experts/micro-testing-thin-die
Micro Testing Thin Die X-Ray Inspection and Test Products Corporate | Global Directory | Languages Division Only All of Nordson Home Products Bondtesting Systems Micro Materials Testing Wafer Inspection and Metrology X-ray Inspection Systems X-ray Counting Systems Applications Battery
Surface Mount Technology Association (SMTA) | https://www.smta.org/knowledge/proceedings_abstract.cfm?PROC_ID=4722
2.5D/3D integration technologies that can utilize tens of thousands of connections per die. Micro copper (Cu) pillar geometries have been widely adopted because their small size and fine pitch provides high thermal conductivity, higher input/output (I/O
