Resistor-based Temperature Sensors In Cmos Tech... < 500+ HIGH-QUALITY >

Utilizing the back-end-of-line (BEOL) metal layers provides a very stable, albeit lower, TCR, making them useful for specific high-stability requirements.

Resistor-based oscillators (where the frequency is modulated by resistance changes) allow for direct time-to-digital conversion, simplifying the analog-to-digital interface. Challenges and Trade-offs Resistor-based Temperature Sensors in CMOS Tech...

High-ohmic polysilicon resistors can be fabricated in a smaller footprint than the multi-transistor arrays required for high-accuracy BJT sensing. The Physics of Resistor-Based Sensing At the heart

Resistor-based Temperature Sensors in CMOS Technology The integration of high-precision sensing elements within Complementary Metal-Oxide-Semiconductor (CMOS) technology has become a cornerstone of modern integrated circuit (IC) design. As chips become denser and faster, monitoring thermal profiles is critical for reliability, performance optimization, and power management. Among various sensing modalities, resistor-based temperature sensors have emerged as a compelling alternative to traditional bipolar junction transistor (BJT) based sensors, particularly in low-power and area-constrained applications. The Physics of Resistor-Based Sensing different materials offer varying thermal responses:

At the heart of a resistor-based sensor is the Temperature Coefficient of Resistance (TCR). In CMOS processes, different materials offer varying thermal responses: