Network Your Existing Ovens
If your ovens still run but lack data and connectivity, they can join a smart factory without replacement. WEISUN adds PLCs, a central server collecting every unit's data, and a monitoring screen for live temperature, status and alarms. Manual logs become traceable production records. Work is done in your plant, one oven down at a time; other brands qualify too. Scope can extend to SECS/GEM, MES/EAP/ERP and energy management, on our own monitoring software.
Challenges
Challenge 1: Return to the OEM
Other vendors want ovens shipped back for rework.

Challenge 2: Costly new tools
OEMs push new machines; working ovens are scrapped early.

Challenge 3: Slow requalification
New tools mean requalifying recipes, delaying production.

Solution 1: On site, nothing leaves
One oven down at a time; 3 days to a week of downtime saved.

Solution 2: Keep the oven
Add PLCs and one central server.

Solution 3: No recipe retuning
Only data and comms added; no recipe change or requalification.
Wafer Test Case
Customer: Taiwanese wafer test house | Process: wafer pressure testing

Problem: the end customer required traceability, but other-brand hot-air ovens were offline and hand-logged. The OEM offered factory retrofit or new tools.

What we did:
- Added a PLC to each oven
- One central server, no IPC per unit
- Monitoring screen: temperature, status, alarms
- On site, one oven down at a time

Results:
- Traceable data for every bake
- No new tools or early scrapping
- No recipe retuning
- At least 3 days to a week of downtime and transport saved
Upgrade Menu
Pick what your line needs:
- Alarm prediction and maintenance: fault analysis, alerts, fix logs, less unplanned downtime
- Data collection, cleansing, big data/AI analysis, custom monitoring screen
- SECS/GEM for semiconductor and substrate tools, linking old ovens to the host
- MES, EAP, PLC, energy (ESG) and ERP integration
- Handhelds, touch panels, IPCs, large displays, databases, front/back end
- Needs assessment, scheduling, technical documents

Our software runs on a PLC touch panel per oven: live monitoring, safety control, history lookup, and temperature/O2 upload to your IT server.