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HOD ok
by : Sachin Rana

KPO: ok
by :

CI: ok
by : Shubham Srivastava

Team Member - 1
Team Member - 2
HOD
KPO
CI Team
Finance
Kaizen Theme
Kaizen Description

Cooling Method Improvement in Reflow Process – Chiller to Nitrogen

Before Situation

Earlier, in the cooling zone of the Reflow oven, we used a chiller-based cooling system to cool the PCB. This resulted in inconsistent temperature control and frequent moisture issues. Problem / Issue Identified: Uneven cooling was observed with the chiller system. Condensation formed on PCBs, affecting solder joints.

After Situation

Now, instead of the chiller, we use Nitrogen gas to cool the PCB. Nitrogen is a dry and inert gas, which: Prevents oxidation of solder joints Ensures controlled and uniform cooling Eliminates moisture-related defects

Kaizen Start Date

17-06-2025

Kaizen End Date

25-06-2025

Result

Productivity

Cost Calculation Sheet
Improvement Details