To verify manufacturing yield by testing

2002 ◽  
Author(s):  
Mill-Jer Wang ◽  
Jwu-E Chen ◽  
Yung-Yuan Chen
Keyword(s):  
Manufacturing Yield

E-band cavity diplexer based on micromachined technology

2015 ◽  
Vol 8 (2) ◽  
pp. 179-184 ◽  
Author(s):  
Valeria Nocella ◽  
Luca Pelliccia ◽  
Paola Farinelli ◽  
Roberto Sorrentino ◽  
Mario Costa ◽  
...  
Keyword(s):  
Insertion Loss ◽  
Radio Link ◽  
Next Generation ◽  
Frequency Range ◽  
Coupled Cavities ◽  
Future Production ◽  
Band Pass ◽  
Manufacturing Tolerances ◽  
Manufacturing Yield ◽  
Better Than

A robust and tuneless micromachined waveguide diplexer operating in the frequency range 71–86 GHz is here presented. The diplexer is based on multiple coupled cavities and it is manufactured using micromachining technology on two staked silicon layers. The diplexer consists of two filters combined to a common waveguide port via an E-plane T-junction. The two eight-order band-pass filters are centered at 73.5 and 83.5 GHz. The fractional bandwidths for two bands are 8.8 and 7.8% at higher- and lower-band, respectively. The measured insertion loss is below 0.7 dB for both the filters and the diplexer isolation is better than 55 dB, as required. The proposed technology allows for a very compact device (<20 × 20 × 1.5 mm) and the first prototypes were proved to be very robust to manufacturing tolerances and environmental tests, thus leading to an excellent tuneless manufacturing yield in future production. The diplexer will be employed in next generation terrestrial radio-link communications front-ends.

VLSI Design for Manufacturing: Yield Enhancement

1990 ◽  
Author(s):  
Stephen W. Director ◽  
Wojciech Maly ◽  
Andrzej J. Strojwas
Keyword(s):  
Vlsi Design ◽  
Design For Manufacturing ◽  
Yield Enhancement ◽  
Manufacturing Yield

Deformation Control in Wear-Resistant Steel Quenching Process

2011 ◽  
Vol 52-54 ◽  
pp. 595-600 ◽  
Author(s):  
Dong Mei Zhu ◽  
Shao Jun Zhang ◽  
Guo Yong Liu
Keyword(s):  
Production Efficiency ◽  
Steel Plate ◽  
Work Conditions ◽  
Cooling Zone ◽  
Resistant Steel ◽  
Wear Resistant ◽  
Deformation Control ◽  
Quenching Process ◽  
Plate Shape ◽  
Manufacturing Yield

Computation model for TNM360 wear-resistant steel quenching process is established by finite element method. Four work conditions are designed for studying the effect of different location of cooling zone on quenching plate shape. And the temperature field and stress-strain field under four work conditions are calculated through the established model. For 20mm thick steel plate, the effect of uneven cooling of the front of cooling zone on the plate shape is larger than that of the rear of cooling zone. Under different work conditions, the effect of thermal stress on plate shape is different with phase transition stress. The results of the study provide important theoretical basis to control wear-resistant steel plate shape and improve production efficiency and manufacturing yield.

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