60% Cycle time acceleration, 55% energy reduction, 32Kbit SRAM by auto-selective boost (ASB) scheme for slow memory cells in random variations

Author(s):  
Yasue Yamamoto ◽  
Atsushi Kawasumi ◽  
Shinichi Moriwaki ◽  
Toshikazu Suzuki ◽  
Shinji Miyano ◽  
...  
2021 ◽  
Vol 16 (1) ◽  
pp. 1-8
Author(s):  
Dayane Reis ◽  
Michael Niemier ◽  
Xiaobo Sharon Hu

Data transfer between a processor and memory frequently represents a bottleneck with respect to improving application-level performance. Computing-in-memory (CiM), where logic and arithmetic operations are performed in memory, could significantly reduce both energy consumption and computational overheads associated with data transfer. This work presents a revisited study of FeFET-CiM, a CiM architecture capable of performing Boolean ((N)AND, (N)OR, X(N)OR, INV) as well as arithmetic (ADD) operations between words in memory. In this study, we employ two types of FeFET-based memory cells in the CiM architecture. Namely, the 2T+1FeFET and the 1-FeFET memory cells. The use of these two types of memory cells in the FeFET-CiM architecture is enabled by two distinct models for FeFET devices. The FeFET-CiM architecture based on 2T+1FeFETs (1FeFETs) offers an average speedup of ∼2.5X (∼1.1X) and energy reduction of ∼1.7X (∼1.4X) when compared to a SRAM baseline across 12 benchmark programs. Despite smaller speedups and energy savings enabled by 1FeFET-CiM when compared to 2T+1FeFET-CiM, 1FeFET memory arrays may offer up to ∼5.3X density improvements when compared to conventional 6T-SRAM arrays. Furthermore, 1FeFET-CiM offers significant application-level improvements when compared to a counterpart STT-CiM architecture.


2020 ◽  
Vol 4 (2) ◽  
pp. 48-55
Author(s):  
A. S. Jamaludin ◽  
M. N. M. Razali ◽  
N. Jasman ◽  
A. N. A. Ghafar ◽  
M. A. Hadi

The gripper is the most important part in an industrial robot. It is related with the environment around the robot. Today, the industrial robot grippers have to be tuned and custom made for each application by engineers, by searching to get the desired repeatability and behaviour. Vacuum suction is one of the grippers in Watch Case Press Production (WCPP) and a mechanism to improve the efficiency of the manufacturing procedure. Pick and place are the important process for the annealing process. Thus, by implementing vacuum suction gripper, the process of pick and place can be improved. The purpose of vacuum gripper other than design vacuum suction mechanism is to compare the effectiveness of vacuum suction gripper with the conventional pick and place gripper. Vacuum suction gripper is a mechanism to transport part and which later sequencing, eliminating and reducing the activities required to complete the process. Throughout this study, the process pick and place became more effective, the impact on the production of annealing process is faster. The vacuum suction gripper can pick all part at the production which will lower the loss of the productivity. In conclusion, vacuum suction gripper reduces the cycle time about 20%. Vacuum suction gripper can help lower the cycle time of a machine and allow more frequent process in order to increase the production flexibility.


2009 ◽  
Vol E92-C (4) ◽  
pp. 423-432 ◽  
Author(s):  
Hidehiro FUJIWARA ◽  
Shunsuke OKUMURA ◽  
Yusuke IGUCHI ◽  
Hiroki NOGUCHI ◽  
Hiroshi KAWAGUCHI ◽  
...  
Keyword(s):  

Author(s):  
R. Irawan

Leap frog concept was created to address the loss of single joint rig agility and drive the cycle time average lower than ever. The idea is to move the preparation step into a background activity that includes moving the equipment, killing the well, dismantling the wellhead and installing the well control equipment/BOP before the rig came in. To realize the idea, a second set of equipment is provided along with the manpower. By moving the preparation step, the goal is to eliminate a 50% portion of the job from the critical path. The practice is currently performed in tubing pump wells on land operations. However, the work concept could be implemented for other type of wells, especially ESP wells. After implementation, the cycle time average went down from 18 hours to 11 hours per job, or down by ~40%. The toolpusher also reports more focused operations due to reduced scope and less crew to work with, making the leap frog operation safer and more reliable. Splitting the routine services into 2 parts not only shortened the process but it also reduces noise that usually appear in the preparation process. The team are rarely seen waiting on moving support problems that were usually seen in the conventional process. Having the new process implemented, the team had successfully not only lowered cycle time, but also eliminated several problems in one step. Other benefits from leap frog implementation is adding rig count virtually to the actual physical rig available on location, and also adding rig capacity and completing more jobs compared to the conventional rig. In other parts, leap frog faced some limitation and challenges, such as: limited equipment capability for leap frog remote team to work on stuck plunger, thus hindering its leap frog capability, and working in un-restricted/un-clustered area which disturb the moving process and operation safety.


2012 ◽  
Vol 2 (2) ◽  
pp. 84-99
Author(s):  
Beci Sariani ◽  
Meizul Zuki ◽  
Yusril Dany

The purpose of this study is to describe layout and elements of the movement labor, determine cake making job completion time before and after repair, complaints of pain workers and recomendation improved layout and elements work in ergonomic aspects. Layout and elements of the cake making job is less visible than ergonomic working conditions with temperatures as high as 290C and 300C, total distance moving much material for the production namely 2407 cm, manufacture molen 180 cm, 2926 cm baking and packaging 626 cm. Percentage of use right and left hand at creation pia cake is 50.11% and 54.4%. Making molen is 100% and 76.69%. Pia cake making is 12.76% and 12.21%. Packaging is 100% and 84.8%. Cycle time, normal time and standard time of content creation, namely 17004.15, 18.534.52 and 25.577.64 seconds (2 basins). Making molen is 560.23, 616.25 and 751.82 seconds (1 basin). Pia cake making is 1.165,45, 1314.63 and 1.603,85 seconds (2 trays), and packaging is 15,40, 16,79 and 23.17 seconds (2 pack). The application of ergonomics : 8 types of grievances felt a bit sick and 1 type of grievances felt sick. Station molen manufacture, workers felt no pain. Baking station pia (sub-stations) only complaint molen rolling on his back felt a little sore. Sub-station charging only 3 workers who feel a little pain complaints and pain. In the sub-station : 6 types pengovenan grievances felt a little sick. The packing station after repairs only felt a little pain in the waist


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