September, 2022


www.us-tech.com


Cheetah Inspection Testing Lab Provides Precision Analysis Services


Continued from previous page


changed significantly. SHENMAO Technology Inc. developed lead-free packaging materials and established a laboratory for failure analy- sis, reliability, and product certification. Most of the core members of Cheetah are


from SHENMAO’s material development lab. Each employee has more than 10 years of ex- perience in chemical, material or failure analysis.


Cheetah Services Cheetah can design boards according to


the requirements of a board-level reliability


test. To monitor whether compo- nents are abnormal or not, a daisy chain is inserted between the components and the board to form a circuit after assembly. Failure can be determined by the resistance of the circuit. The company also offers


SMT reflow and through-hole wave soldering, along with pick- and-place and SPI. Based on the definition of


IPC/JEDEC-9073, component board-level test is one conducted on a simplified board with only a single type of component. The re- liability test items include board- level thermal cycling and board- level drop tests. The company also provides


environmental stress tests, in- cluding temperature, humidity and other external forces, SIR testing, ECM testing, and tests for tin whiskers. For failure analysis, Chee-


tah uses scanning electron mi- croscopy, digital microscopy, X- ray inspection, dye and pry test- ing, and cross section testing. Its materials analysis services in clude thermal mechanical analy- sis, shear and pull testing, and tensile testing. For chemical analysis, the


company performs Fourier-trans- form infrared spectroscopy (FT- IR). This process collects energy changes caused by the absorption or emission of IR energy in vari- ous bonding structures in both liquid and solid samples. This provides a sort of “fingerprint” IR spectrum that can be compared to the existing spectrum in the


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1 9


PET-4 M Thermal Test Work Station


Copperhead® Thermal Test Socket


creates automated testing and programming solutions for nearly any ap- plication and device type.


From hand test to high volume, our modular building block concept allows the widest variety of system configurations possible.


Cheetah offers one-stop electronics assembly services.


database. The company also offers analysis of ionizable surface contaminants through


ROSE testing and ion chromatography. “SHENMAO strives to offer the best


quality without compromising cost and time to market, while providing maximum value to all customers,” concludes Tseng. “By mak- ing the Cheetah Inspection lab available to anyone in the industry, we are able to spread our vision by offering high-reliability, precise testing services to anyone who needs them.” Contact: SHENMAO America, Inc., 2156


Ringwood Avenue, San Jose, CA 95131 % 408-943-1755 fax: 408-684-5477 E-mail: usa@shenmao.com Web: www.shenmao.com r


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Model 802 Tabletop Test Handler w/ Dual Z


Model 802 Thermal Test Handler w/ Tape Input


Model 1900 Automatic Jedec Tray Laser Marker w/ Vision


Model 901 Test Handler w/ Bowl Input and Tape Output


Model 8000 Dual Tri-Temp Test Handler


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