Implementing Single-Row Process Plate Design for Pre-Encapsulated Lead Frame

Journal of Engineering Research and Reports ◽

10.9734/jerr/2020/v16i217162 ◽

2020 ◽

pp. 26-30

Author(s):

R. Rodriguez ◽

F. R. Gomez ◽

J. Pulido

Keyword(s):

Conventional Method ◽

Lead Frame ◽

Innovative Design ◽

Single Row ◽

Plate Design ◽

Thin Semiconductor ◽

Panel Type

This paper presents the application of an innovative design of wirebond process plate during wirebonding process of thin semiconductor carrier such as the pre-encapsulated leadframe. The implementation of the specialized process plate aims to improve the conventional method of wirebonding from panel type to single-row design to reduce the occurrence of warpage on thin leadframes. In this study, an 85% reduction for warpage level is achieved after the introduction of the new design of process plate. Future works could use the improved process plate design for devices of similar configuration.

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Off-centered Ball Resolution Through Multi-hole Process Plate Implementation at Wirebond Process

Journal of Engineering Research and Reports ◽

10.9734/jerr/2021/v20i717340 ◽

2021 ◽

pp. 45-50

Author(s):

J. Pulido ◽

F. R. Gomez ◽

E. Graycochea Jr.

Keyword(s):

Semiconductor Manufacturing ◽

New Technologies ◽

Single Row ◽

Plate Design ◽

Panel Type ◽

Manufacturing Assembly ◽

Centered Ball ◽

Bouncing Effect

With the continuous trend of new technologies in semiconductor manufacturing assembly, challenges and issues are unavoidable. This paper presents the modification and improvement done on the process plate design to eliminate the bouncing effect of the silicon die that leads to off-centered ball (OCB) reject during the formation of wire on a quad flat no-leads (QFN) device. The panel type single-row process plate cannot totally vacuum the warped leadframe and this is resulting to off-centered ball. Through changing the panel type single-row process plate to panel type multi-hole process will have a strong vacuum sucked underneath the leadframe and eliminates the occurrence of off-centered ball. Future works could use the improved process plate design for devices of similar configuration.

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Arthroscopic Single-Row Versus Double-Row Suture Anchor Rotator Cuff Repair

Yearbook of Hand and Upper Limb Surgery ◽

10.1016/s1551-7977(08)70223-1 ◽

2007 ◽

Vol 2007 ◽

pp. 30-31 ◽

Cited By ~ 1

Author(s):

R.J. Goitz

Keyword(s):

Rotator Cuff ◽

Rotator Cuff Repair ◽

Suture Anchor ◽

Double Row ◽

Single Row ◽

Cuff Repair

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Innovative design of metamaterial structures for elastic wave absorption and structural vibration suppression||Innovative design of metamaterial structures for elastic wave absorption and structural vibration suppression

10.32469/10355/44233 ◽

2014 ◽

Author(s):

Hao Peng

Keyword(s):

Elastic Wave ◽

Vibration Suppression ◽

Structural Vibration ◽

Innovative Design ◽

Wave Absorption ◽

Structural Vibration Suppression

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“House and Open-Air School in One”

Southern California Quarterly ◽

10.1525/scq.2020.102.2.143 ◽

2020 ◽

Vol 102 (2) ◽

pp. 143-157

Author(s):

Raymond Richard Neutra

Keyword(s):

Educational Program ◽

Turning Point ◽

Modern Architecture ◽

Healthy Living ◽

Innovative Design ◽

Educational Theories ◽

Richard Neutra ◽

Shed Light

The Lovell Health House (1927–1929) by Richard Neutra for Dr. Phillip Lovell and his wife, Leah Lovell, was a turning point in modern architecture. The house not only carried out Phillip Lovell’s principles of healthy living, it also incorporated a school conducted along the progressive educational theories embraced by Leah Lovell. This article identifies the educational features in Neutra’s plan. Interviews with one of the last remaining students of the school shed light on the students and faculty and how the design served the school’s curriculum. Neutra’s innovative design accommodating the progressive educational program at the Lovell Health House belongs in any discussion of the later school designs for which he won lasting acclaim.

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A Proposal of a Visual Inspection Method for Detecting Low Contrast Defects of an IC Lead Frame by Using a Spline Function

IEEJ Transactions on Electronics Information and Systems ◽

10.1541/ieejeiss.130.1546 ◽

2010 ◽

Vol 130 (9) ◽

pp. 1546-1553 ◽

Cited By ~ 1

Author(s):

Kiyoshi Shigemori ◽

Toshihiro Kikuno ◽

Takahiro Inoue

Keyword(s):

Spline Function ◽

Visual Inspection ◽

Lead Frame ◽

Inspection Method ◽

Low Contrast

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Clinical Experience with a Novel, Irrigated, Flexible Tip Ablation Catheter to Optimise Therapy Delivery

European Cardiology Review ◽

10.15420/ecr.2010.6.3.66 ◽

2010 ◽

Vol 6 (3) ◽

pp. 66 ◽

Cited By ~ 2

Author(s):

Carlo Pappone ◽

Luigi Giannelli ◽

Vincenzo Santinelli ◽

◽

...

Keyword(s):

Atrial Fibrillation ◽

Atrial Flutter ◽

Clinical Experience ◽

Accessory Pathway ◽

Surrounding Tissue ◽

Ablation Catheter ◽

Innovative Design ◽

Cavotricuspid Isthmus ◽

Arrhythmogenic Substrate ◽

Therapy Delivery

Innovative technologies are being developed to make current ablation procedures safer and easier. Sometimes conventional ablation catheters cannot easily adapt to anatomical targets, making radiofrequency applications challenging, time consuming or even ineffective. The Cool Flex is a novel, flexible and fully-irrigated tip catheter with an innovative design and various angular orientations to better adapt the ablation tip to the surrounding tissue. Here, peliminary experience with this new ablation catheter is reported in the treatment of different tachyarrhythmias, including slow and accessory pathway ablation, cavotricuspid isthmus-dependent atrial flutter and atrial fibrillation. One or two radiofreqency applications may be sufficient to eliminate the arrhythmogenic substrate in most patients without complications.

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