{"id":572,"date":"2019-07-09T13:14:48","date_gmt":"2019-07-09T11:14:48","guid":{"rendered":"https:\/\/www.fabsurplus.com\/blog\/?p=572"},"modified":"2022-04-01T16:33:57","modified_gmt":"2022-04-01T14:33:57","slug":"semiconductor-manufacturing-process-explained","status":"publish","type":"post","link":"https:\/\/www.fabsurplus.com\/blog\/semiconductor-manufacturing-process-explained\/","title":{"rendered":"Semiconductor Manufacturing Process Explained"},"content":{"rendered":"\n

Ever wondered what is the semiconductor manufacturing process?<\/p>\n\n\n\n

What are the steps involved and what are the machines required?<\/p>\n\n\n\n

Here’s an explanation!<\/p>\n\n\n\n

The Semiconductor production process consists of the Front End<\/strong>, in which circuits are placed on silicon wafers, and the Back End<\/strong>, which involves assembly and packaging. SDI Fabsurplus.com equipment for sale<\/a> covers all aspects of this process. <\/p>\n\n\n\n

Points 1 to 10 of the Workflow below belong to the Front End<\/strong> semiconductor process.<\/p>\n\n\n\n

Semiconductor manufacturing process flow<\/h3>\n\n\n\n
\"\"\/

<\/figcaption><\/figure>\n\n\n\n

Let’s go into detail into most of the processes outlined above.<\/p>\n\n\n\n

Oxidation formation<\/h4>\n\n\n\n

Wafers are placed into a rapid thermal processing system and heated to approximately 1000\u00b0 Celsius. By exposing wafers to a flow of gas, various films , the oxidation, are created on the wafer surface. <\/p>\n\n\n\n

View Rapid Thermal Processing Systems for sale<\/a><\/p>\n\n\n\n

Photoresist Coating<\/h4>\n\n\n\n

While the wafers are rotated at a high speed in a coater, they are covered by a uniform coat of photoresist. The resist characteristics change when exposed to ultraviolet light thus, placing an image on the wafer. <\/p>\n\n\n\n

View Coaters\/Developers for sale<\/a><\/p>\n\n\n\n

Mask Alignment Exposure<\/h4>\n\n\n\n

After glass masks with integrated circuit (IC) patterns are aligned with the wafers, ultraviolet (UV) liht is applied to transfer the patterns to the photoresist using a stepper.<\/p>\n\n\n\n

View Steppers, Scanners and Photolithography Equipment for sale <\/a><\/p>\n\n\n\n

Develop<\/h4>\n\n\n\n

In a developer, the wafers are uniformly covered with a developing solution to develop the mask patterns. With positive photoresist, the portion that has been exposed to light becomes soluble, leaving the mask patterns on the wafer surfaces.<\/p>\n\n\n\n

View Coaters\/Developers for sale<\/a> <\/p>\n\n\n\n

Etching<\/h4>\n\n\n\n

A plasma dry etch system is used to strip the dielectric films in accordance with the patterns developed on the photoresist. The portion protected by the photoresist remains intact, preserving the original film structure under the resist<\/p>\n\n\n\n

View Dry Etch equipment for sale <\/a><\/p>\n\n\n\n

Ion Implantation<\/h4>\n\n\n\n

Ion implantation dopes or implants the surface of the wafer with a known quantity of impurities, such as boron and arsenic. These elements are then shot into the wafer in a bullet-like fashion. Sacrificial films exist, preventing ions from being implanted in unwanted areas of the wafer. Subsequent annealing will diffuse these impurities to a more uniform density.<\/p>\n\n\n\n

View Ion implanters for sale<\/a><\/p>\n\n\n\n

Interconnect Dielectric Film Deposition<\/h4>\n\n\n\n

Films are deposited to insulate the devices (transistors) and wires. The deposition technique may use a CVD (Chemical Vapor Deposition) system that accumulates gaseous materials through chemical reactions or an SOD (Spin-on Dielectric) coater that applies liquid material through spinning. <\/p>\n\n\n\n

View Photoresist Coat and Development equipment for sale<\/a><\/p>\n\n\n\n

Metal Deposision \/ Etching<\/h4>\n\n\n\n

After the inter-layer dielectric (ILD) films are etched, a CVD (Chemical Vapor Deposition) or PVD (Physical Vapor Deposition) system is used to deposit metal films to form wiring. <\/p>\n\n\n\n

View PVD equipment for sale<\/a>
View CVD equipment for sale<\/a><\/p>\n\n\n\n

Wafer Test<\/h4>\n\n\n\n

Each completed wafer contains hundred of identical ICs. A wafer prober and a tester work together to inspect these individual ICs . Results of these tests determine “good” and “bad” ICs.<\/p>\n\n\n\n

View Wafer probers for sale<\/a><\/p>\n\n\n\n

View Testers for sale<\/a> <\/p>\n\n\n\n

Assembly Process : Dicing<\/h4>\n\n\n\n

Following wafer test, the ICs on the wafer are cut into IC chips several square-millimeters in size utilizing either a diamond cutter or laser technology.<\/p>\n\n\n\n

View Dicing Saws for sale<\/a><\/p>\n\n\n\n

Assembly Process: Bonding \/ Completed LSI<\/h4>\n\n\n\n

Each IC chip pads and package terminals are connected via metal wiring and the chip is enclosed in the appropriate packaging (e.g. plastic). The LSI manufacturing process is now complete. <\/p>\n\n\n\n

View Assembly Bonders for sale<\/a><\/p>\n\n\n\n

Hope you have enjoyed this introduction to the semiconductor manufacturing process, brought to you by SDI Fabsurpus.com. Are you looking for used semiconductor manufacturing equipment for sale? <\/p>\n\n\n\n

Look at our website: www.fabsurplus.com <\/a>


<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Ever wondered what is the semiconductor manufacturing process? What are the steps involved and what are the machines required? Here’s an explanation! The Semiconductor production process consists of the Front End, in which circuits are placed on silicon wafers, and the Back End, which involves assembly and packaging. In this article we will go into detail for each process.<\/p>\n","protected":false},"author":1,"featured_media":585,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[1],"tags":[29,30,28,26],"yoast_head":"\nSemiconductor Manufacturing Process Explained - SDI Fabsurplus News<\/title>\n<meta name=\"description\" content=\"Ever wondered about the semiconductor manufacturing process? SDI explains it all! Including a flowchart of the processes sequence! 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