{"id":19791,"date":"2024-04-15T05:44:07","date_gmt":"2024-04-15T05:44:07","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=19791"},"modified":"2024-04-15T05:44:07","modified_gmt":"2024-04-15T05:44:07","slug":"silicon-oxide-is-patterned-on-a-substrate-using-a-physical-lithography-b-photolithography-c-chemical-lithography-d-mechanical-lithography","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/silicon-oxide-is-patterned-on-a-substrate-using-a-physical-lithography-b-photolithography-c-chemical-lithography-d-mechanical-lithography\/","title":{"rendered":"Silicon oxide is patterned on a substrate using . . . . . . . . A. Physical lithography B. Photolithography C. Chemical lithography D. Mechanical lithography"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6a9c4c45df46b\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    Physical lithography                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"true\">\r\n                    Photolithography                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    Chemical lithography                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    Mechanical lithography                <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is B. Photolithography.<\/p>\n<p>Photolithography is a process used to create patterns on a substrate by exposing it to light through a mask. The light causes a chemical reaction that changes the properties of the substrate, such as its solubility or electrical conductivity. This allows for the creation of precise patterns on the substrate, which can be used to create integrated circuits, microelectromechanical systems (MEMS), and other devices.<\/p>\n<p>Physical lithography is a process that uses a physical mask to transfer a pattern to a substrate. The mask is typically made of a material such as chrome or silicon dioxide, and it has the desired pattern etched into it. The substrate is then placed in contact with the mask, and a pressure is applied to transfer the pattern to the substrate.<\/p>\n<p>Chemical lithography is a process that uses a chemical reaction to transfer a pattern to a substrate. The substrate is typically coated with a photoresist, which is a material that is sensitive to light. The substrate is then exposed to light through a mask, which causes the photoresist to react in the exposed areas. The unexposed photoresist is then washed away, leaving behind the desired pattern on the substrate.<\/p>\n<p>Mechanical lithography is a process that uses a mechanical tool to transfer a pattern to a substrate. The tool is typically made of a material such as diamond or tungsten carbide, and it has the desired pattern etched into it. The substrate is then placed in contact with the tool, and the tool is used to scratch the pattern into the substrate.<\/p>\n<p>Photolithography is <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n              <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div>   <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> the most common type of lithography used in the semiconductor industry. It is a very precise process that can be used to create patterns with features as small as a few nanometers.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Join Our Telegram Channel Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[687],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Silicon oxide is patterned on a substrate using . . . . . . . . A. Physical lithography B. Photolithography C. Chemical lithography D. 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