Nyob rau hauv lub nti decryption sector, qhov tseeb tshaj plaws decryption txheej txheem yog siv hardware decryption, uas entails dissolving lub nti siv ib tug tshwj xeeb fat-dissolving txheej txheem kom nws pom. Lub nti tej zaum yuav yaj thiab tawg thaum lub sijhawm ua haujlwm - cov hlau kuj tseem tuaj yeem tawg thiab tawg - tawm hauv lub nti tsis tuaj yeem siv tsis tau. Tau kawg, nws tuaj yeem siv los khi nws yog tias tus neeg siv khoom tsuas muaj ib lub tswv yim. Rebinding yog thov los ntawm lub Hoobkas hauv qhov xwm txheej no, txawm li cas los xij nws yuav raug nqi nyiaj thiab siv sijhawm ntev dua. Feem ntau, khi ib zaug yuav siv sij hawm ib lub lim tiam. Nws yuav raug khi ib zaug ntxiv yog tias qhov kev xeem khi tsis tau tiav.yog qhov no, tus kws tshaj lij yuav rov qhib lub nti thiab sim rho tawm qhov program hauv lub sijhawm luv tshaj.
Thaum lub wafer raug nthuav tawm, peb yuav siv lub tshuab ntsuas hluav taws xob siab thiab FIB (cov cuab yeej tsom ion beam) txhawm rau nrhiav txoj haujlwm encrypted ntawm lub nti, thiab hloov cov nti encrypted mus rau hauv ib lub nti tsis tau encrypted los ntawm kev hloov nws lub voj voog. Ib lub xeev ntawm lub nti, thiab tom qab ntawd siv tus programmer los nyeem tawm qhov program hauv lub nti.
chip ua
1. Lub nti yog qhib los ntawm cov txheej txheem tshuaj los yog hom ntim tshwj xeeb, thiab cov hlau kub tau ua tiav kom tshem tawm cov tuag.
2. Cov txheej txheem tshem tawm: Cov txheej txheem raug tshem tawm los ntawm etching, nrog rau kev tshem tawm cov txheej tiv thaiv polyimide, oxide txheej, txheej passivation, txheej hlau, thiab lwm yam.
3. Chip dyeing Kom pab txhawb kev txheeb xyuas, muaj cov txheej txheem hlau tseem ceeb, dyeing ntawm ntau hom dej, thiab ROM code point dyeing.
4. Kev yees duab lub nti Lub nti tau yees duab los ntawm lub tshuab ntsuas hluav taws xob (SEM).
5. Cov duab stitching: stitch cov duab hauv cheeb tsam uas ntes tau (software stitching, phau ntawv stitching tom qab yees duab tsim).
6. Kev txheeb xyuas Circuit Court tuaj yeem rho tawm cov circuits digital thiab analog circuits hauv cov chips, npaj lawv rau hauv kev nkag siab yooj yim hierarchical circuit diagrams, thiab muab lawv rau cov neeg siv khoom hauv daim ntawv sau cov ntaub ntawv thiab cov ntaub ntawv hluav taws xob.
