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In computer science and mathematical logic, satisfiability modulo theories (SMT) is the problem of determining whether a mathematical formula is satisfiable.It generalizes the Boolean satisfiability problem (SAT) to more complex formulas involving real numbers, integers, and/or various data structures such as lists, arrays, bit vectors, and strings.
Many companies use different CAD systems and exchange CAD data file format with suppliers, customers, and subcontractors. [2] Such formats are often proprietary. [ 1 ] : 157 Transfer of data is necessary so that, for example, one organization can be developing a CAD model, while another performs analysis work on the same model; at the same time ...
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Surface-mount technology (SMT), originally called planar mounting, [1] is a method in which the electrical components are mounted directly onto the surface of a printed circuit board (PCB). [2] An electrical component mounted in this manner is referred to as a surface-mount device ( SMD ).
Hermes is a machine-to-machine communication standard used in the SMT assembly industry. [1]IPC-HERMES-9852. It is a successor to the SMEMA standard, introducing improvements such as: simpler physical wiring (Ethernet), use of popular data transmission formats (TCP/IP and XML), reduced number of barcode scanners (required only once at the beginning of the line), transmission of board data ...
In 1993, SMT sold the first Windows NT application for oil & gas industry to Barrett Bros. In 1996, the first integrated 2D and 3D seismic package into the Windows environment. In 2000, SMT software was in 23 of the top 50 oil & gas operators. [4] In 2003, SMT Europe opened its office in Croydon, England. In 2006, SMT Asia opened its office in ...
During automated SMT pick-and-place, this happens mostly if the mechanical pressure of the SMD placer nozzle is too low. If the MELF components are placed into the solder paste with enough pressure, then this problem can be minimized. Care must be taken with glass diodes which are less mechanically robust than resistors and other MELF components.
Imagination Technologies MIPS CPUs have two SMT threads per core. IBM's Blue Gene/Q has 4-way SMT. The IBM POWER5, announced in May 2004, comes as either a dual core dual-chip module (DCM), or quad-core or oct-core multi-chip module (MCM), with each core including a two-thread SMT engine.