針對封裝半成品IC的條狀并行測試研究
[Abstract]:At present, the demand for all kinds of electronic products in our country is increasing rapidly, and the demand for integrated circuit chips becomes geometric growth every year. With the digitalization and large capacity of all kinds of electronic products, the demand for chips will also increase substantially. As a result, the quantity of IC chips has increased greatly, which requires manufacturers to provide more finished products in the same time, thus putting forward higher requirements for IC design, production and testing. In this paper, a new method of strip parallel testing based on encapsulating semi-finished integrated circuits is proposed, which aims to improve the test production efficiency and reduce the test cost. Based on the analysis of the principle of strip testing, this paper summarizes the requirements of strip testing for hardware equipment, the way of setting up the test software environment, and the solution of difficult problems in production, and discusses the methods and flow chart suitable for strip parallel testing. And to import this new test method into the test production, The main research contents of this topic include: 1, the development of strip parallel test conditions for packaging semi-finished integrated circuits: through the research of the whole strip parallel testing process, In particular, the analysis and comparison of the production efficiency between the strip parallel test method and the traditional single test method, Develop the most suitable conditions for strip parallel testing. 2. Package the process of strip parallel testing for semi-finished integrated circuits: through two different types of packaging, The small shape integrated circuit package (SOP) and the square flat pin free package (QFN) develop the package test flow of the different packaging type required by the strip test. A new method of adding pin separation process (Trim) and square flat pin free (QFN) package type to (SOP) package type of small shape integrated circuit and adding half cut process (Half-cut) to the package type of square flat pin free (QFN) are proposed. 3, in order to package semi finished integrated circuit strip parallel, this paper proposes a new method of adding half cut process (Half-cut) to the package type of small shape integrated circuit. Test environment construction and test method implementation: combined with actual production environment, Build the corresponding software and hardware test environment, and based on this, put forward the method of strip parallel testing. 4, package the semi-finished integrated circuit strip parallel test results analysis: put forward the test result judgment method, the final product screening, the identification method and so on. For each process, the experimental method is specified, the feasibility is determined, the complete scheme is formed and applied to the new method of strip parallel testing for packaging semi-finished integrated circuits in actual production. Breaking through the traditional mode of testing finished product after packaging, innovatively putting forward the test mode of semi-finished IC, after the packaging process is finished, Instead of printing and cutting, a pin separation (Trim), can be used to test the electrical properties of the product on the frame. It breaks through the model that traditional finished product testing must carry out single test, realizes the real large-scale test, greatly improves the testing efficiency in the large-scale process of product production, and can meet the demand of short time market and large supply quantity of chip.
【學(xué)位授予單位】:上海交通大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:TN407
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