30‐1: Invited Paper: High Aspect Ratio OLED Microdisplay with Pin Mirror Lens for Small Form Factor AR Devices

2021 ◽  
Vol 52 (1) ◽  
pp. 379-382
Author(s):  
Chan-Mo Kang ◽  
Jin-Wook Shin ◽  
Sukyung Choi ◽  
Byoung-Hwa Kwon ◽  
Hyunsu Cho ◽  
...  
Keyword(s):  
Form Factor ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Small Form ◽  
Small Form Factor

scholarly journals Metal-Embedded SU-8 Slab Techniques for Low-Resistance Micromachined Inductors

2018 ◽  
Vol 6 (2) ◽  
pp. 88
Author(s):  
Manot Mapato ◽  
Prapong Klysuban ◽  
Thanatchai Kulworawanichpong ◽  
Nimit Chomnawang
Keyword(s):  
Form Factor ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Font Size ◽  
Small Form ◽  
Low Resistance ◽  
Low Profile ◽  
Micro Power ◽  
Small Form Factor ◽  
Micro Structures

<span style="font-size: 9pt; font-family: 'Times New Roman', serif;">This work presents new fabrication technique for micro power-</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">inductors </span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">by using metal-embedded SU-8 slab techniques. This techniques used X-ray lithography to fabricate high aspect</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">-r</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">atio LIGA-like micro-structures in form of embedded structure in SU-8 slab </span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">and applied for inductor’s</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;"> winding </span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">fabrication </span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">with aspect-ratio of 10. This</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">high-aspect ratio</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">structure</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;"> can provide very low resistance winding but preserve small form factor and low profile. Inductors </span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">were</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;"> designed as pot-core structures with</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">8 μm-thick permalloy core and 250 μm-thick coppe</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">r</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;"> winding. 4-type</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">s</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;"> of inductors were fabricated including 3, 5, 10 and 16 turns in the area of 1.8 mm<sup>2</sup> to 9.5 mm<sup>2</sup>. All inductors have overall heights of 370 μm, measured inductance value in a range of 70 nH to 1.3 μH at 1 MHz and </span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;">DC</span><span style="font-size: 9pt; font-family: 'Times New Roman', serif;"> resistance value of 30 mΩ to 336 mΩ for 3 turns to 16 turns respectively. From this result, high aspect-ratio inductors show</span><span style="font-size: 10.0pt; font-family: 'Times New Roman','serif'; mso-fareast-font-family: Calibri; mso-bidi-font-family: 'Cordia New'; mso-bidi-theme-font: minor-bidi; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: TH;"> good results including low-resistance, high inductance, and a small form factor as expected. </span>

Near-field recording for small form factor optical disks

2007 ◽  
Vol 37 (2) ◽  
pp. 175-180 ◽  
Author(s):  
Jin-Hong Kim
Keyword(s):  
Form Factor ◽  
Near Field ◽  
Small Form ◽  
Field Recording ◽  
Optical Disks ◽  
Small Form Factor

scholarly journals Design and Implementation Scheme of QSFP28 Optical Transceiver for Long-Reach Transmission Using PAM4 Modulation

2021 ◽  
Vol 11 (6) ◽  
pp. 2803
Author(s):  
Jae-Woo Kim ◽  
Dong-Seong Kim ◽  
Seung-Hwan Kim ◽  
Sang-Moon Shin
Keyword(s):  
Form Factor ◽  
Low Cost ◽  
Pulse Amplitude ◽  
Small Form ◽  
Transceiver Design ◽  
Industrial Sites ◽  
Design And Implementation ◽  
Design Scheme ◽  
Implementation Scheme ◽  
Small Form Factor

A quad, small form-factor pluggable 28 Gbps optical transceiver design scheme is proposed. It is capable of transmitting 50 Gbps of data up to a distance of 40 km using modulation signals with a level-four pulse-amplitude. The proposed scheme is designed using a combination of electro-absorption-modulated lasers, transmitter optical sub-assembly, low-cost positive-intrinsic-native photodiodes, and receiver optical sub-assembly to achieve standard performance and low cost. Moreover, the hardware and firmware design schemes to implement the optical transceiver are presented. The results confirm the effectiveness of the proposed scheme and the performance of the manufactured optical transceiver, thereby confirming its applicability to real industrial sites.

scholarly journals Field Evaluation of a Small Form-factor Head Impact Sensor for use in Soccer

2016 ◽  
Vol 147 ◽  
pp. 186-190 ◽  
Author(s):  
Derek Nevins ◽  
Kasee Hildenbrand ◽  
Jeff Kensrud ◽  
Anita Vasavada ◽  
Lloyd Smith
Keyword(s):  
Form Factor ◽  
Field Evaluation ◽  
Head Impact ◽  
Small Form ◽  
Small Form Factor

Transmission Delay Stabilization Using Commercial Pluggable Small Form Factor Transceiver Based on V-Cavity Laser

2018 ◽  
Author(s):  
Josef Vojtech ◽  
Martin Slapak ◽  
Tomas Horvath ◽  
Michal Altmann ◽  
Ondrej Havlis ◽  
...  
Keyword(s):  
Form Factor ◽  
Transmission Delay ◽  
Small Form ◽  
Cavity Laser ◽  
Small Form Factor

Laboratory and field evaluation of a small form factor head impact sensor in un-helmeted play

2017 ◽  
Vol 232 (3) ◽  
pp. 242-254 ◽  
Author(s):  
Derek Nevins ◽  
Kasee Hildenbrand ◽  
Jeff Kensrud ◽  
Anita Vasavada ◽  
Lloyd Smith
Keyword(s):  
Form Factor ◽  
Center Of Mass ◽  
False Negative ◽  
Angular Acceleration ◽  
Linear Acceleration ◽  
Field Evaluation ◽  
Head Impact ◽  
Sensor Data ◽  
Small Form ◽  
Small Form Factor

Head impact sensors are increasingly used to quantify the frequency and magnitude of head impacts in sports. A dearth of information exists regarding head impact in un-helmeted sport, despite the substantial number of concussions experienced in these sports. This study evaluated the performance of one small form factor head impact sensor in both laboratory and field environments. In laboratory tests, sensor performance was assessed using a Hybrid III headform and neck. The headform assembly was mounted on a low-friction sled and impacted with three sports balls over a range of velocities (10–31 m/s) at two locations and from three directions. Measures of linear and angular acceleration obtained from the small form factor wireless sensor were compared to measures of linear and angular acceleration obtained by wired sensors mounted at the headform center of mass. Accuracy of the sensor varied inversely with impact magnitude, with relative differences across test conditions ranging from 0.1% to 266.0% for peak linear acceleration and 4.7% to 94.6% for peak angular acceleration when compared to a wired reference system. In the field evaluation, eight male high school soccer players were instrumented with the head impact sensor in seven games. Video of the games was synchronized with sensor data and reviewed to determine the number of false positive and false negative head acceleration event classifications. Of the 98 events classified as valid by the sensor, 20.5% (20 impacts) did not result from contact with the ball, another player, the ground or player motion and were therefore considered false positives. Video review of events classified as invalid or spurious by the sensor found 77.8% (14 of 18 impacts) to be due to contact with the ball, another player or player motion and were considered false negatives.

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