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2. Solder paste - Wikipedia

   en.wikipedia.org/wiki/Solder_paste

   The amount of time solder paste can stay on a stencil without affecting its printing properties. The paste manufacturer provides this value. Tack Tack is the property of a solder paste to hold a component after the component had been placed by the placement machine. Hence, tack life is the critical property of solder pastes.

3. Stencil printing - Wikipedia

   en.wikipedia.org/wiki/Stencil_Printing

   Ideally, a solder paste should have, at minimum, a 4-hour stencil life. The stencil life is defined as a time period in which there will be no significant change in the solder paste material characteristics. A solder paste with a longer stencil life will be more robust in the printing process.

4. Graping - Wikipedia

   en.wikipedia.org/wiki/Graping

   The graping phenomenon can be resolved utilizing proper solder materials in addition to correct reflow profile settings. Solder powders are available that provide a tighter distribution range as well as a high oxidation barrier. This barrier not only improves the paste release from the stencil, but also provides an ideal surface area-to-volume ...

5. Surface-mount technology - Wikipedia

   en.wikipedia.org/wiki/Surface-mount_technology

   Solder paste, a sticky mixture of flux and tiny solder particles, is first applied to all the solder pads with a stainless steel or nickel stencil using a screen printing process. It can also be applied by a jet-printing mechanism, similar to an inkjet printer .

6. Thick-film technology - Wikipedia

   en.wikipedia.org/wiki/Thick-film_technology

   There are numerous steps in thick film manufacturing which need careful control, like roughness of the substrate, curing temperatures and times of pastes, selected stencil thickness vs. paste type, etc., [10] [11] Therefore the number of pastes used and process steps define the complexity of the process and cost of the final product.

7. Subsidy Scorecards: Boise State University

   projects.huffingtonpost.com/projects/ncaa/embed/...

   SOURCE: Integrated Postsecondary Education Data System, Boise State University (2014, 2013, 2012, 2011, 2010).Read our methodology here.. HuffPost and The Chronicle examined 201 public D-I schools from 2010-2014.