Patterning of PMMA microfluidic parts using screen printing process

2010 ◽  
Author(s):  
Aminreza Ahari Kaleibar ◽  
Mona Rahbar ◽  
Marius Haiducu ◽  
Ash M. Parameswaran
Keyword(s):  
Screen Printing ◽  
Printing Process

scholarly journals Chitosan-based enzyme ink for screen-printed bioanodes

RSC Advances ◽  
2021 ◽  
Vol 11 (33) ◽  
pp. 20550-20556
Author(s):  
Isao Shitanda ◽  
Kanako Oda ◽  
Noya Loew ◽  
Hikari Watanabe ◽  
Masayuki Itagaki ◽  
...  
Keyword(s):  
Magnesium Oxide ◽  
Mesoporous Carbon ◽  
Screen Printing ◽  
Printing Process ◽  
One Step ◽  
Screen Printed

Bio-composite inks based on magnesium oxide (MgO)-templated mesoporous carbon (MgOC) and chitosan cross-linked with genipin for one-step screen-printing process.

The Study on Color Quality Attributes of IMR with PET on White Ink by UV Inkjet

2014 ◽  
Vol 1004-1005 ◽  
pp. 799-802 ◽  
Author(s):  
Chang Lang Chen ◽  
Yu Tung Chang ◽  
Sheng Hao Taso ◽  
Weichieh Hsu
Keyword(s):  
Inkjet Printing ◽  
Screen Printing ◽  
Quality Attributes ◽  
Gravure Printing ◽  
Printing Process ◽  
Color Quality ◽  
Study Results ◽  
Color Differences ◽  
Pet Film ◽  
Better Than

The In-Mold Roller is a revolutionary printing process by which objects are 3D decorated. Products decorated by In-Mold Roller are waterproof and protected from fading. What’s more, these kinds of decorations strongly increase the beauty, desirability and value of the objects. The In-Mold Roller is now using either of gravure printing and screen printing to print PET film. However, there are some problems with these two techniques. This research is to investigate potential usages of combining In-Mold Roller with digital UV inkjet printing in 3D decoration, e.g. in personalized printing services. Study results found that when the coverage and the resolution of inkjet printing become higher, the SIDs will become higher as well. When transferred to ABS, SIDs in each combination will increase. Each combination of inkjet conditions, with the isolation of white ink, color differences are less variant. TVIs of white ink decrease 30% to 40% halftone and display in “M” type. In print contrast, C and K colors of each combination are better than M and Y colors. After transferred into print contrast, each combination of PC will be higher about 2 to5. When transferred to ABS, color variances of each combination are not huge, and color differences are about 3to5.

scholarly journals Optimization of image screen printing process on film biodegradable packaging

2017 ◽  
Vol 8 (2) ◽  
pp. 11-17
Author(s):  
Viktoriya Korotka ◽  
◽  
Svitlana Havenko ◽  
Kseniya Bazylyuk ◽  
◽  
...  
Keyword(s):  
Screen Printing ◽  
Printing Process ◽  
Biodegradable Packaging ◽  
Image Screen

Research on the Panel Fabrication for the Field Emission Display with Double Strip Emitters

2012 ◽  
Vol 557-559 ◽  
pp. 2450-2453
Author(s):  
Feng Ge Wang ◽  
Yu Kui Li
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Screen Printing ◽  
Emission Property ◽  
Field Emission Property ◽  
Electric Conduction ◽  
Field Emission Display ◽  
Printing Process ◽  
Conduction Property ◽  
Cathode Electrode

With high effective screen-printing process, the field emission display panel with double stripe emitters was fabricated and their good field emission property was also characterized. Using sintered silver slurry with better electric conduction property as material, the cathode electrode including two parts was formed. The top cathode electrode was made up of two silver stripes, which the carbon nanotube material would reside on its surface. The bottom cathode electrode was separated by the cathode separate layer with the top cathode electrode, but the electric-connection would be performed between them through the preformed round holes. Using carbon nanotube as cathode, the field emission display panel with double stripe emitters was demonstrated.

Thermophysical Behavior of Micro Void in μ-Via of Microelectronic Substrate during Reliability Test

2007 ◽  
Vol 26-28 ◽  
pp. 1261-1264
Author(s):  
Hyo Soo Lee ◽  
Hai Joong Lee ◽  
Sung Chul Lim ◽  
Hyouk Chon Kwon
Keyword(s):  
Crack Initiation ◽  
Screen Printing ◽  
Electronic Devices ◽  
Extraction Process ◽  
Copper Layer ◽  
Reliability Test ◽  
Filling Process ◽  
Printing Process ◽  
Conventional Process

The μ-via in microelectronic substrate should have multiple purposes, one of them is to allow to the path of signal or current from electronic devices. The micro void can be easily formed in μ-via because μ-vias are filled with a screen printing process and the size of via is small. The residual void has been known as crack initiation of copper layer during a reliability test. The solder resist filling process and the behavior of a residual void in μ-vias were investigated. The void extraction process was very effective comparing with the conventional process to remove a residual void. As extracted with 1.5 atm for more than 30 sec, the residual void in μ-BVH was perfectly eliminated.

Screen Printing Fine Pitch Stretchable Silver Inks onto a Flexible Substrate for Wearable Applications

2018 ◽  
Vol 2018 (1) ◽  
pp. 000665-000671
Author(s):  
Jianbiao Pan ◽  
Malcolm Keif ◽  
Joshua Ledgerwood ◽  
Xiaoying Rong ◽  
Xuan Wang
Keyword(s):  
Sheet Resistance ◽  
Flexible Electronics ◽  
Screen Printing ◽  
Flexible Substrate ◽  
Thermoplastic Polyurethane ◽  
Organic Substrate ◽  
Printing Process ◽  
Silver Ink ◽  
Fine Pitch

Abstract The lightweight and bendable features of printed flexible electronics are increasingly attractive. Currently stretchable silver inks are formulated for wide traces, typically larger than 2 mm. To attach ultra-thin silicon chips that have fine pitch onto printed organic substrate, it is necessary to print fine trace width/space that matches the pitch of the chips, which may be less than 200 microns. This paper presents the development and optimization of the screen printing process for printing stretchable silver ink onto stretchable thermoplastic polyurethane (TPU) substrate. A test vehicle was designed including 50 μm/5 mm (line width/line length) to 350 μm/35 mm lines (at 4 biases). The stretchable ink selected was DuPont PE 873 and Dupont's PE 5025 ink (non-stretchable conductive flake silver) was used as a “control” to baseline the printing process. The substrate used was Bemis TPU ST604. The experiment was done on a DEK Horizon 03i printer. A DEK squeegee 200 (Blue) and a DEK 265 flood bar (200 mm) were used. A 2-level factorial design with three replicates was selected to investigate the effect of process parameters on the quality of prints. The quality of the prints is characterized by 1) resistance of traces, 2) sheet resistance, 3) z-axis height, and 4) trace width/spacing. We observed significant noise in the z-axis printed silver ink height measured by profilometry and concluded z-axis height is not a good response variable for characterizing screen printing stretchable silver ink onto TPU substrate, mainly due to high roughness of the TPU substrate. We proposed calculated sheet resistance based on the measured resistance value, trace width, and trace length, which can replace trace height measurements on rough profile substrates. We found that squeegee pressure and emulsion thickness have statistically significant effects on calculated sheet resistance of print traces while print speed does not have statistically significant effects. In our experiment setting levels, the lower the squeegee pressure, the lower the calculated sheet resistance that is achieved. The emulsion with higher emulsion over mesh (EOM) is better than the emulsion with lower EOM since it can achieve lower sheet resistance. After optimizing the screen printing process, we were able to print 100 μm (4 mils) trace width and spacing with high consistency.

Screen Printing Fine Pitch Stretchable Silver Inks onto a Flexible Substrate for Wearable Applications

2018 ◽  
Vol 15 (4) ◽  
pp. 179-186
Author(s):  
Jianbiao Pan ◽  
Malcolm Keif ◽  
Joshua Ledgerwood ◽  
Xiaoying Rong ◽  
Xuan Wang
Keyword(s):  
Sheet Resistance ◽  
Screen Printing ◽  
Flexible Substrate ◽  
Thermoplastic Polyurethane ◽  
Line Length ◽  
Printing Process ◽  
Silver Ink ◽  
Fine Pitch ◽  
Measured Resistance ◽  
High Consistency

Abstract This article presents the development and optimization of the screen printing process for printing stretchable silver ink onto a stretchable thermoplastic polyurethane substrate. A test vehicle was designed including 50 μm/5 mm (line width/line length) to 350 μm/35 mm lines (at four biases). A two-level factorial design with three replicates was selected to investigate the effect of process parameters on the quality of prints. We proposed calculated sheet resistance based on the measured resistance value, trace width, and trace length, which can replace trace height measurements on rough profile substrates. We found that squeegee pressure and emulsion thickness have statistically significant effects on calculated sheet resistance of print traces, whereas print speed does not have statistically significant effects. In our experiment setting levels, the lower the squeegee pressure, the lower the calculated sheet resistance that is achieved. The emulsion with higher emulsion over mesh (EOM) is better than the emulsion with lower EOM because it can achieve lower sheet resistance. After optimizing the screen printing process, we were able to print 100 μm (4 mils) trace width and spacing with high consistency.

Fabrication of a Porous Ni-Based Metal with a Multi-pore Structure by a Screen Printing Process

2019 ◽  
Vol 25 (5) ◽  
pp. 1272-1277 ◽  
Author(s):  
Yu-Jeong Yi ◽  
Min-Jeong Lee ◽  
Jung-Yeul Yun ◽  
Byoung-Kee Kim
Keyword(s):  
Pore Structure ◽  
Screen Printing ◽  
Printing Process

Low-Cost and Disposable Electrowetting-on-Dielectric Lab on a Chip With an Integrated Electrochemical Detector Fabricated by Screen-Printing Process

2019 ◽  
Vol 19 (19) ◽  
pp. 8597-8604 ◽  
Author(s):  
Kessararat Ugsornrat ◽  
Patiya Pasakon ◽  
Chanpen Karuwan ◽  
Chakrit Sriprachuabwong ◽  
Thitima Maturos ◽  
...  
Keyword(s):  
Screen Printing ◽  
Low Cost ◽  
Lab On A Chip ◽  
Electrochemical Detector ◽  
Printing Process ◽  
Electrowetting On Dielectric
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