Quality Control
HD Visual Inspection
● HD Visaul inspection equipment is 16 million pixels and 1/2.33 inch image imported Panasonic CMOS image sensor, which the view is wider than 1/3 inches. Also to output HDMI with 1080P 60 frame image (camera resolution 4608*3456).
● Confirmed the solder ball is good in BGA package including oxidized, reball, flat and consistent.
● Confirmed the surface of the product is the same as specification marking
Final Function Testing
● Compare IC product delay output function signal and high low level voltage.
● Measure the product DC characteristic curve and repetitive peak reverse voltage in MOSFET\Diode\TRANSISTOR\IGBT\ TRIAC.
● Measure product Output load Regulation in LDO IC product.
Test Equipment
● High voltage and current semiconductor test equipment.
● High integration semiconductor component analysis equipment.
● LCR test component equipment.
● Agilent high 6 digitals meter and fluke high 5 digitals meter.
● Tektronix 32M signal generator equipment.
● Agilent 200M brand width oscilloscope.
Open/Short Test
● To test the lower diode,which is connected to VSS,use the PMU to force a negative current of approximately-100μA.Set the lower test limit of the PMU to fail if the measured result is less than-1.5V to detect an open . Set the upper PMU limit to fail if the measured result is greater than -0.2V to detect a short. This test method is used to test signal pins (inputs an outputs) but not power pins such as VDD or VSS.
● Power and ground pins may also be tested for an open condition, but their structure is different from that of a signal pin. Test the power pins, observe the measured value on a good device, and set the test limits accordingly.
Open/Short Test
● To test the upper diode, which is connected to VDD, use the PMU to force a positive current of approximately+100μA. Set the upper test limit of the PMU to fail if the measured result is greater than 1.5V to detected an open . Set the lower PMU limit to fail if the measured result is less than 0.2V to detect a short. This test method is used to test signal pins (inputs and outputs) but not power pins such as VDD or VSS.
Programming Function Testing
● There is hundreds of different pacakge testing sockets and adaptor to check various of devices including market famous programming tester, eg: XELTEK 7500 6100 3000U, SMARTPRO 5000U
Test Equipment
● XELTEK 7500 6100 3000U 5000U programming tester is specificity program, which to test ID read, write, verify program as well as blank checking for digital memory Mictrocontrollers, MCU and so on.
● To ensure the correct read and write of the chip internal storage, we do storage capacity test for digital memory and flash memory.
