Regional Stiffness Reduction Using Lamina Emergent Torsional Joints for Flexible Printed Circuit Board Design

被引：11

作者：

Defigueiredo, Bryce P. ^{[1
]}

Zimmerman, Trent K. ^{[1
]}

Russell, Brian D. ^{[1
]}

Howell, Larry L. ^{[1
]}

机构：

[1] Brigham Young Univ, Dept Mech Engn, Provo, UT 84602 USA

来源：

JOURNAL OF ELECTRONIC PACKAGING | 2018年 / 140卷 / 04期

基金：

美国国家科学基金会;

关键词：

CARBON NANOTUBE; FILMS; RELIABILITY; FABRICATION; DEVICES;

D O I：

10.1115/1.4040552

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Flexible printed circuit boards (PCBs) make it possible for engineers to design devices that use space efficiently and can undergo changes in shape and configuration. However, they also suffer from tradeoffs due to nonideal material properties. Here, a method is presented that allows engineers to introduce regions of flexibility in otherwise rigid PCB substrates. This method employs geometric features to reduce local stiffness in the PCB, rather than reducing the global stiffness by material selection. Analytical and finite element models are presented to calculate the maximum stresses caused by deflection. An example device is produced and tested to verify the models.

引用

页数：9

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