Applied Materials 0195‑01314 Dual‑Zone Ceramic Heater Assembly

Product Description

0195‑01314 is a dual‑zone ceramic heater assembly designed for Applied Materials Centura T700P LPCVD 300 mm wafer process chamber. It integrates embedded resistive heating elements, high‑purity ceramic dielectric substrate and built‑in RTD temperature sensors. The assembly provides uniform, high‑temperature thermal conditioning for wafer substrate during low‑pressure chemical vapor deposition recipes. Two independent thermal zones allow separate temperature set‑point tuning to optimize across‑wafer film thickness uniformity. Optimized for high‑vacuum, high‑temperature semiconductor process environment with low out‑gassing and particle‑generation performance.

Key Functions

• Dual independent heating zones for fine‑tuning radial wafer temperature profile to improve thin‑film uniformity on 300 mm wafers
• Embedded platinum RTD sensors for real‑time closed‑loop temperature feedback to chamber thermal controller
• High‑temperature stable ceramic matrix, supports sustained elevated operating temperature for LPCVD deposition processes
• Low out‑gassing material property, compatible with high‑vacuum process chamber operating conditions
• Thermal interlock signal output; triggers process hold or shutdown upon over‑temperature sensor fault
• Receives power drive from external heater power supply; sensor signals feed back to tool temperature control PCA for recipe temperature regulation

Application Scenarios

• Applied Materials Centura T700P LPCVD process chamber, 300 mm wafer manufacturing
• Low‑pressure chemical vapor deposition thin‑film deposition processes
• High‑volume semiconductor fab clean‑room production environment
• Wafer substrate heating for poly‑silicon, nitride and oxide LPCVD film formation

Common Issues & FAQ

• Across‑wafer film non‑uniformity drift: Check RTD sensor offset calibration; verify zone‑to‑zone power balance; inspect heater surface for process‑by‑product deposition buildup; check for heater element partial degradation.
• Temperature reading jump or open‑sensor fault: Inspect RTD feed‑through and internal wiring continuity; check connector pin oxidation; validate sensor resistance reading against reference value.
• Heater cannot reach target recipe temperature: Verify heater power supply output performance; inspect power feed‑through contact resistance; check for resistive element partial burnout; review chamber heat‑loss conditions.
• Over‑temperature interlock triggers recipe hold: Confirm RTD calibration validity; check thermal controller PID parameters; inspect chamber cooling loop performance.
• Refurbished / replacement unit note: After installation, complete dual‑zone temperature calibration, wafer thermal profile mapping, vacuum bake‑out cycle, and full LPCVD recipe validation before releasing to production. Verify RTD reading consistency with tool thermal monitoring system.