Integriti kuasa dalam satu produk elektronik memainkan peranan yang penting dalam menentukan integriti isyarat dan prestasi produk tersebut secara keseluruhannya. Berhubungan dengan itu, salah satu tumpuan projek ini adalah berkaitan dengan prestasi rangkaian penyampaian kuasa dalam permukaan kuasa litar bersepadu and papan litar tercetak. Dalam projek ini, penyelidikan telah berfokus kepada penganalisasian rangkaian penyampaian kuasa melalui model dan simulasi. Permukaan kuasa telah dimodel melalui theori Delaunay-Voronoi. Untuk menjalankan simulasi, satu kaedah kaedah pemasukkan latensi (LIM) telah digunakan. Namun begitu, kaedah LIM biasa terdapat masalah dalam kemantapannya. Demi menghadapi masalah ini, satu kaedah LIM yang telah diubahsuai turut digunakan dalam projek ini. Keputusan simulasi yang diperolehi melalui kedua-dua kaedah LIM akan dibandingkan melalui aspect ketepatan dan kemantapan kaedah masing-masing. Keputusan yang diperolehi melalui projek ini telah menunjukkan kesan struktur rangkaian kuasa terhadap performansinya. Bagi proses simulasi, kaedah LIM basia pula menunjukkan penurunan kemantapannya daripada 10 pikosaat kepada 2 pikosaat apabila saiz rangkaian dikurangkan. Kemantapan and ketepatan bagi kaedah LIM baru pula ditunjukan dalam Meja 4.4 dan 4.5. Secara umunnya, LIM biasa menunjukkan ketepatannya dalam linkungan jarak masa yang mantap dan LIM baru pula menunjukkan kemantapannya dengan penurunan di ketepatannya apabila jarak masa dinaikkan.
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Power integrity of a design plays an important role in affecting the signal integrity and the overall performance of the design. Therefore, the concern of the project is on the performance of power delivery network (PDN) on power plane. The research is focused into the analysis of PDN by modeling and simulation of the power plane. In the project, power plane is modeled using Delaunay-Voronoi algorithm and for simulation, a fast transient simulation algorithm which is latency insertion method (LIM) is applied. However, typical LIM algorithm is facing problem on its stability. Therefore, in the project, modeled power planes are simulated with basic LIM and voltage-in-current formulated LIM. The transient response and direct current (dc) response of the PDN are simulated and discussed and the simulated results from the two algorithms are compared in term of their accuracy and stability. The results has shown the effect of meshing size and shape to the simulated response. For PDN simulation, the results have shown the change in maximum stable time step of basic LIM from 10 ps to 2 ps due to the usage of finer meshing. For improved LIM, the results has shown a stable output over all time steps but with an increase in degradation of accuracy as tabulated in Table 4.4 and 4.5. In overall, basic LIM has shown its strength on the accuracy provided that the simulation is stable while improved LIM has shown its strength on stability but its accuracy degrades with the increase of time step.
Power delivery network modeling and simulation by using delaunay-voronoi triangulation and the latency insertion method / Chin Wei Chun