Blog – Amarpreet Singh – Your EMS Consulting Partner

amarpreet41
January 5, 2026

Running RoHS and Non‑RoHS on the Same SMT Line:

Running RoHS (lead‑free) and non‑RoHS (leaded) products on the same SMT line is possible, but only with strict process control and clear separation to avoid even tiny lead contamination of RoHS assemblies. Below is a step‑by‑step, practical plan for converting and managing a mixed‑mode line, plus key risks and how to mitigate them. 1. Basics: […]

amarpreet41
December 31, 2025

Great Idea? Why No One’s Listening on the Shop Floor?

You spot a simple fix for the SMT line. Machines slow down because nozzles clog. But when you tell the boss, nothing happens. Your idea stays in your head. It’s not enough to have good ideas. You must explain them well. As a professional on the shop floor, it’s your job to make sure ideas […]

amarpreet41
December 28, 2025

Why Set Up a DOJO?

A DOJO Training Area is a hands-on learning space for operators or engineers. It comes from Toyota and helps teams practice skills safely before real work. A DOJO teaches operators to get familiar with tools and techniques used on the shop floor, avoiding costly mistakes and producing great quality results. New workers often make errors […]

amarpreet41
December 27, 2025

Nitrogen’s Role in High‑Reliability Reflow & Selective Soldering

How much is the right O2 Level for a N2 compatible reflow oven ?

amarpreet41
December 5, 2025

What Are Source Inspection Services?

Source inspection refers to structured quality verification carried out at the supplier’s facility before shipment, often by independent inspectors or customer representatives. Inspectors confirm that materials, components, or equipment conform to drawings, specifications, standards, and contractual requirements while production is still in progress or just completed. This practice is also called vendor inspection, supplier inspection, […]

amarpreet41
November 22, 2025

How Pre-Shipment Inspection Saved Our Customers Time & Money

Last month, one of our customer a Bangalore based electronics product manufacturer was ordering a batch of 500 PCBAs from a supplier in Ahmedabd. The delivery was critical – they had a deadline to meet for their defense customer and any delay would mean penalties. They contacted us at Zenaca Consulting to do a pre-shipment […]

amarpreet41
October 31, 2025

The Digital Thread: Integrating Inspection Data into Your QMS for Full Traceability

In the age of Industry 4.0, data is the most valuable asset a manufacturer possesses. Yet for many organizations, critical quality data remains locked away in disconnected silos: inspection reports in one folder, supplier scorecards in another, and non-conformance reports in a separate system entirely. This fragmented approach turns valuable business intelligence into inaccessible noise, […]

amarpreet41
October 27, 2025

De-Risking Your Supply Chain: How a Robust Source Inspection Program Builds Supplier Accountability.

In today’s volatile global market, supply chain resilience is no longer a competitive advantage; it’s a condition for survival. For executives and supply chain leaders, managing risk is a primary mandate. While we focus on geopolitical instability, logistics bottlenecks, and raw material shortages, a significant and controllable risk often lurks closer to home: inconsistent supplier quality. […]

amarpreet41
October 17, 2025

Why Global OEMs Struggle with Indian EMS Suppliers ?

The global rush to diversify manufacturing supply chains has put the Indian Electronics Manufacturing Services (EMS) industry in the spotlight. With a growing ecosystem and a clear government push, the “India Promise” of a viable manufacturing alternative is more compelling than ever. Yet, for many global OEMs, the reality on the ground is often a […]