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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. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

4. Graping - Wikipedia

   en.wikipedia.org/wiki/Graping

   The increased surface oxidation is the result of smaller printed paste deposit volumes that cause a diminished surface area to flux ratio of the solder particle, resulting in flux exhaustion. While solder paste can be manufactured using any size range, there has been a move towards finer particle sizes, especially for fine feature stencil ...

5. Head-in-pillow defect - Wikipedia

   en.wikipedia.org/wiki/Head-in-pillow_defect

   For example, in the case of a ball grid array (BGA) package, the pre-deposited solder ball on the package and the solder paste applied to the circuit board may both melt, but the melted solder does not join. A cross-section through the failed joint shows a distinct boundary between the solder ball on the part and the solder paste on the circuit ...

6. Gregory Peck's 5 Children: All About His Sons and Daughter ...

   www.aol.com/gregory-pecks-5-children-sons...

   Gregory and his then-wife Greta Kukkonen welcomed their first son, Jonathan, in 1944. The couple split when he was around 8 years old. According to the Detroit Free Press, Gregory's oldest son was ...

7. Home collapses into ocean in North Carolina's Outer Banks. It ...

   www.aol.com/news/home-collapses-ocean-north...

   A North Carolina coastal storm sent a home into the ocean off the Outer Banks island of Hatteras overnight Friday, marking the sixth house collapse in the area this year.. The unoccupied home was ...

8. Muscle cramps are a pain. These expert-approved tips can help ...

   www.aol.com/muscle-cramps-pain-expert-approved...

   At one point or another, we’ve all experienced the unexpected, intense pain of a muscle cramp. Muscle cramps, also known as muscle spasms or charley horses, are the involuntary contraction of ...

9. Solder alloys - Wikipedia

   en.wikipedia.org/wiki/Solder_alloys

   Soldering copper pipes using a propane torch and a lead-free solder. Solder is a metallic material that is used to connect metal workpieces. The choice of specific solder alloys depends on their melting point, chemical reactivity, mechanical properties, toxicity, and other properties. Hence a wide range of solder alloys exist, and only major ...