摘要:
A device (20) includes sensors (30, 32, 34) that sense different physical stimuli. Fabrication (90) entails forming (92) a device structure (22) to include the sensors and coupling (150) a cap structure (24) with the device structure so that the sensors are interposed between the cap structure and a substrate layer (28) of the device structure. Fabrication (90) further entails forming ports (38, 40) in the substrate layer (28) such that one port (38) exposes a sense element (44) of the sensor (30) to an external environment (72), and another port (40) temporarily exposes the sensor (34) to the external environment. A seal structure (26) is attached to the substrate layer (28) such that one port (40) is hermetically sealed by the seal structure and an external port (46) of the seal structure is aligned with the port (38).
摘要:
In some embodiments a method of manufacturing a sensor system can comprise forming a first structure having a substrate layer and a first sensor that is positioned on a first side of the substrate layer, bonding a cap structure over the first sensor on the first side of the substrate layer, and depositing a first dielectric layer over the cap structure. After bonding the cap structure and depositing the first dielectric layer, a second sensor is fabricated on the first dielectric layer. The second sensor includes material that would be adversely affected at a temperature that is used to bond the cap structure to the first side of the substrate layer.
摘要:
A system for programming integrated circuit (IC) dies formed on a wafer includes an optical transmitter that outputs a digital test program as an optical signal. At least one optical sensor (e.g., photodiode) is formed with the IC dies on the wafer. The optical sensor detects and receives the optical signal. A processor formed on the wafer converts the optical signal to the digital test program and the digital test program is stored in memory on the wafer in association with one of the IC dies. The optical transmitter does not physically contact the dies, but can flood an entire surface of the wafer with the optical signal so that all of the IC dies are concurrently programmed with the digital test program.