John VanNewkirk

President and C.E.O CheckSum LLC

4 min read

Keeping Up With the SMT Line: A Parallel PCBA Test Case Study

John VanNewkirk: Jan 22, 2025, 1:00:00 PM

Customer Use Case Originally published January 22, 2025. Updated August 12, 2026. In this CheckSum customer application, a leading European automotive electronics manufacturer reduced untested work in process (WIP) by 99%, lowered production-test...

4 min read

The Million-Dollar Bottleneck: Why PCBA Test Falls Behind High-Speed SMT Lines

John VanNewkirk: Aug 21, 2024, 1:00:00 PM

PCBA Production Test Originally published August 21, 2024. Updated August 6, 2026. In electronics manufacturing, the slowest process determines the...

Parallel Testing PCBA Testing SMT Manufacturing In-Circuit Test (ICT) Functional Test Panelized PCBAs

4 min read

How EMS Providers Can Standardize PCBA Test Without Sacrificing Flexibility

John VanNewkirk: Jun 25, 2024, 1:00:00 PM

EMS Test Strategy Originally published on LinkedIn June 25, 2024. Updated August 13, 2026. Standardization has served electronics manufacturing...

Parallel Testing PCBA Testing SMT Manufacturing In-Circuit Test (ICT) Functional Test Panelized PCBAs