In this paper, we discuss the difference between heating or not heating the Test Solvent when performing a test. The OM600R does not have the ability to heat. The OM600SMD doeshave heating as an option which can be selected by the operator if desired. 10.1 Is Heating Required by IPC-TM-650…
In this paper, we discuss the difference between heating or not heating the Test Solvent when performing a test. The OM600R does not have the ability to heat. The OM600SMD doeshave heating as an option which can be selected by the operator if desired. 10.1 Is Heating Required by IPC-TM-650…
This paper describes the test used to determine total ionic content extracted from the surface of printed circuit board for the purposes of process control. The manual method of beakers and flasks is first discussed, followed by an examination of an automated system using the “static” method of ionic extraction…
The concentration of IPA in the Test Solvent will influence the test results. The Test Solventshould be 75 % IPA, +/- 3%. Because IPA will evaporate quicker than H2O, the concentrationof IPA will tend to decrease with time. This concentration should be checked, and if necessaryadjusted, periodically. Non-ionic contaminates such…
The fabrication and assembly of printed circuit boards (pcbs) includes many processes that introduce corrosive ionic materials to the pcb. There are many sources of these ionic contaminants, but most are attributed to chemical etchants and cleaners, plating solutions and solder flux. Ionic contamination can cause corrosion and dendrite growth…
The Resistivity Of Solvent Extract (ROSE) test is a test for the presence and average concentration of soluble ionic contaminants. The process uses an extracting “Test Solvent” of 75 percent by volume of ACS reagent grade IsoPropyl alcohol (IPA) and 25% by volume of De-Ionized water (D-H2O). The alcohol is…
The operator should should stay with the system and monitor the display during the clean cycle. Once the cleaning is complete, the operator should stop the cleaning process. The operator needs to avoid “over-cleaning” the Test Solvent. The resistivity probe has a measurement limit of about 60.35 Mohm-cm, whereas the…
