There is growing interest in the use of pin in hole/intrusive reflow where
conventional through hole components are soldered in place using solder paste during surface
mount reflow. This process can eliminate hand or wave soldering especially on multi lead parts
which can be time consuming to solder separately. Intrusive reflow provides joints which are
equal to the strength of traditional through hole joints and the process can be more cost
effective to introduce on new products. As with any new process there are changes in the
process to consider and challenges to the process engineer so what are some of the issues with
A short introduction to quantum computation Civilisation
has advanced as people discovered new ways of exploiting various physical resources such as
materials, forces and energies. In the twentieth century information was added to the list when the
invention of computers allowed complex information processing to be performed outside human brains.
Prototype Hybrid Hard Drive promises lower power
consumption, fewer hard drive malfunctions. Samsung expects to show a prototype hard drive
at WinHEC this week that includes flash memory. The design holds the promise of lower power usage and
less hard drive trouble for laptop users.
Solder.net tips BEST Instructors have put to video
demonstrations of common hand soldering skills. These are not designed to be in place of live one on
one training where repetitive skills and subsequent one on one feedback is given. Rather they are
quick refreshers designed to be viewed if a specific skill has not been practiced in a while.
Lead-Free SMD repair We produced a RoHS (lead-free)
prototype order recently, and there was some components that we needed to replace on a
couple of PCBA's. We found it very hard to do this even with the new solder iron.
Non-wetting: PTH on double-side reflow We process a
double-side reflow board (10 ups). Chips and IC's on the bottom side while chips, IC's
plus thru-hole connectors and IC sockets on top side (bottom side first then top side
reflow). In the past, we were not encountering any soldering problem with our
Manufacturing Process Engineer Texas, US Develop
and set-up surface mount processes that include the full range of surface mount
components, board materials and process materials. Conduct DFM reviews prior to release
to production. Debug machine software programs.