Preformed solder parts coated with parylene in a thickness effec

Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

428332, 428407, 428409, 228 563, 228223, 228224, B32B 702

Patent

active

057890684

ABSTRACT:
The invention provides a solder preform coated with a predetermined thickness of parylene which physically and chemically protects the preform, as well as a provides a unique optical interference coating which reflects at characteristic frequencies. When predetermined thicknesses of parylene are selected, the parylene coating provides an interference coating which causes the solder preforms to appear green, or gold, or blue in color. The parylene coating, which is otherwise colorless and transparent thus enables solder preforms to be visually distinguishable by alloy type (or customer) by the use of colors, or blends of colors. The invention further provides an effective method of visually verifying the reflow status of a solder preform during manufacturing by examining the color of the solder preform after heating. The interference colors provided by the parylene coating do not persist through the reflow process, and thus, the change in color of the solder preform after reflow can be used as an effective visual check to determine if the preform has been heated sufficiently.

REFERENCES:
patent: 3300332 (1967-01-01), Gorham et al.
patent: 4225647 (1980-09-01), Parent
patent: 4298407 (1981-11-01), Taylor
patent: 4380518 (1983-04-01), Wydro
patent: 4758288 (1988-07-01), Versic
patent: 4994326 (1991-02-01), Shimmura et al.
patent: 5069972 (1991-12-01), Versic
patent: 5272007 (1993-12-01), Jenkinson et al.
patent: 5328522 (1994-07-01), Sowa et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Preformed solder parts coated with parylene in a thickness effec does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preformed solder parts coated with parylene in a thickness effec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preformed solder parts coated with parylene in a thickness effec will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1175017

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.