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WL MEMS

Micro-Electro-Mechanical Systems (MEMS) consists of mechanical elements, sensing features, and electronics devices on a common silicon substrate. The elements in MEMS gather information from the environment through measuring mechanical, thermal, biological, chemical, optical, and magnetic phenomena. Wafer level packaging and TSV technology are keys enabling technologies to achieve innovative functions, higher performance as well as cost effective integration.



Application
Features

MEMS and sensor's markets are mainly driven by the strong demands from mobile, automotive, and medical applications.

Inertial
  • Gyroscope
  • Accelerometer
  • Magnetometer/Hall Effect
  • Combo & IMU
Light & Radiations
  • X-ray Sensor
  • µ-bolometer
  • IR Sensor
  • IR Thermopile
  • UV Sensor
  • PALS/ALS
RF
  • Oscillators
  • Switches
  • SAW
  • FBAR/BAW
Environmental
  • TPMS Module
  • Gas Sensor
  • Pressure Sensor
  • Temperature Sensor
  • Humidity Sensor
  • Si µphone
Others
  • Optical/µ-mirror
  • LED
  • IJ Head
  • Small size, mass volume
  • Low power consumption
  • Low cost
  • Easy to integrate into systems or modify

Reliability

The WL MEMS package with the TSV Last structure was validated with corresponding reliability and electrical characteristics testing.

Test Item Conditions Sample Size Result
Pre-conditioning JEDEC 22-A113
MSL1, 85°C/85% RH,168 hours
77 ea Pass
Temperature Cycle JEDEC 22-A104
-55℃ ~ 125℃, 1000 cycles
25 ea Pass
HAST Test (No Bias) JEDEC 22-A118
130℃/85% RH, 33.3 PSIA, 96 hours
25 ea Pass
High Temperature
Storage Life
JEDEC 22-A103
150°C, 1000 hours
25 ea Pass