National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
FR4 base material - evaluation of flame retardant properties
Růžička, Miroslav ; Zatloukal, Miroslav (referee) ; Starý, Jiří (advisor)
This work examines the flammability material FR4 (EN 61248-2-8) from different manufacturers, comparing their self-extinguishing properties to the standards and information from the manufacturer. Assesses the impact of latitude and longitude leads to the maximum possible current load associated with the occurrence of burning and compares the influence of the examined solder mask materials FR4.
HAL Technology and Selected Parameters Influence on Quality
Jakub, Miroslav ; Jana, Toulová (referee) ; Starý, Jiří (advisor)
Bachelor thesis describes and deals the problems of printed circuit boards production. It focuses on issues of process of lead – free HAL and influence of selected parameters on quality in production process GATEMA s.r.o. in Boskovice. Bachelor thesis contains analysis of PCB using microsection, optical microscopy and a sample of defects created during this process. Bachelor thesis presents on the test boards quality of solder mask developing, evaluates flux contamination with water, residual water on the PCB and it compares the PCB delay in liquid solder. It also determines the limit of non defective cover with the solder and determines the typical thickness of solder mask on the Cu pads and the ratio between the width of font and solder mask thickness.
HAL Technology and Selected Parameters Influence on Quality
Jakub, Miroslav ; Jana, Toulová (referee) ; Starý, Jiří (advisor)
Bachelor thesis describes and deals the problems of printed circuit boards production. It focuses on issues of process of lead – free HAL and influence of selected parameters on quality in production process GATEMA s.r.o. in Boskovice. Bachelor thesis contains analysis of PCB using microsection, optical microscopy and a sample of defects created during this process. Bachelor thesis presents on the test boards quality of solder mask developing, evaluates flux contamination with water, residual water on the PCB and it compares the PCB delay in liquid solder. It also determines the limit of non defective cover with the solder and determines the typical thickness of solder mask on the Cu pads and the ratio between the width of font and solder mask thickness.
FR4 base material - evaluation of flame retardant properties
Růžička, Miroslav ; Zatloukal, Miroslav (referee) ; Starý, Jiří (advisor)
This work examines the flammability material FR4 (EN 61248-2-8) from different manufacturers, comparing their self-extinguishing properties to the standards and information from the manufacturer. Assesses the impact of latitude and longitude leads to the maximum possible current load associated with the occurrence of burning and compares the influence of the examined solder mask materials FR4.

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