Neutral Cleaning and Latest Developments in Closed-Loop Control

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Cleaning processes that are pH-neutral have become a trend-setter in semiconductor and power-electronics applications, and concentration management is simplified by full closed-loop control. Zestron's Harald Wack and Todd Scheerer explain the technical and environmental benefits.

Watch the interview here.

01/20/2021 | Nolan Johnson, I-Connect007

Nolan Johnson gets an update from Tom Forsythe on KYZEN’s Tech 2 Tech sessions. These brief 15-minute sessions were set up during the pandemic by KYZEN for customers, prospects, and new engineers around cleaning, and have since found traction with their manufacturers, reps and distributors.

12/31/2020 | Graham Naisbitt, Gen3 Systems

The original principle underlying the IPC’s ionic cleanliness requirement was that the mobility of surface ions, detectable from SIR measurements, would correlate to a maximum value of detectable ionic elements permissible on the circuit surface. The industry required a test that was both fast and accurate for process control. Thus, a simplified ion chromatograph that was able to detect ionic elements without differentiation was created.

12/24/2020 | Graham Naisbitt, Gen3 Systems

It is assumed that readers are familiar with manufacturing electronic circuit assemblies in accordance with IPC-J-STD-001 or IEC 61189-1; both are titled “Requirements for Soldered Electrical and Electronic Assemblies.” In October 2018, IPC-J-STD-001 Revision G was amended and released with a new Section 8 of the document titled “Cleaning.” The change was primarily the removal of a “cleanliness” level of 1.56 mg/square cm of NaCl equivalence. This small change has great significance in relation to how companies ensure the electrochemical reliability of their products.