Conference Proceedings

Resources for SEMI Members

Welcome to a premium content section which provides additional valuable resources for SEMI Members. This includes important industry information and key content from major SEMI events.

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SEMI Membership is required to access these SEMI Members Only content. If your company is a SEMI member, but you do not have a profile create one now. Be sure to use your company e-mail when you create or update your profile. SEMI recognizes your membership status using your company email address.

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Highlighted Content

WTO Forum Seeks to Redefine International Trade and Investment
October 2016

Fab Investments, and the Equipment and Material Market Outlook
October 2016

SEMI Midwest Member Day 2016
October 17-18, 2016

SEMI Northeast Forum 2016
October 6, 2016

SEMICON Taiwan 2016: 12 Selected Presentations
September 2016

Market Data Update: SEMI Equipment and Materials Outlook
September 2016

SEMICON West 2016
July 12-14, 2016

Advanced Packaging Overview
July 2016

International Printed Electronics Conference
June 29-30, 2016

Strategic Materials Conference Korea 2016
May 18, 2016

EU Machinery Directive Review
May 17, 2016 (wmv file)

ASMC 2016 Selected Presentations
May 16-19, 2016

SEMICON Southeast Asia 2016 Semiconductor Outlook
April 26, 2016

SEMI Northeast Forum: Wafers to Wall St. -- Industry Cycles and the New Normal
March 30, 2016

FlexTech-Lux Webinar: Growth Areas for Flex Electronics Start Ups
March 23,2016

Arizona Breakfast Forum: Selected Presentations
March 22, 2016

ISS Europe: Selected Presentations
March 7, 2016

2016 Flexible & Hybrid Electronics Conference and Exhibition
February 29 - March 3, 2016

SEMICON Korea 2016 Keynotes and Semiconductor Materials Outlook
January 27, 2016

European 3D Summit
January 18-20, 2016

Industry Strategy Symposium
January 11, 2016

Packaging and Materials
January 11, 2016; presented at the Industry Strategy Symposium

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SEMI Japan Member Only Updates


Event Archive

Highlighted Content from Past SEMI Events

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Semiconductor Equipment Briefs

Member Only Content


SEMI Equipment Brief: Wafer Fab Brief (PDF)
Semiconductor fabrication consists of a series of processes in which a device structure is manufactured by applying a series of layers onto a substrate, most commonly on silicon. This involves the deposition and removal of various thin film layers. The areas of the thin film that are to be deposited or removed are controlled through photolithography. Each deposition and removal process is generally followed by cleaning as well as inspection steps.

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SEMI Equipment Brief: Test Equipment (PDF)
There are various types of electrical and reliability tests conducted at different stages of assembly and for different purposes once the wafer fabrication process is finished. Tests include die sort test on wafers, electrical and environmental testing, and burn-in on packaged devices.

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SEMI Equipment Brief: Assembly and Packaging (PDF)
There are two main purposes for assembling the bare semiconductor device into a package. First, the package provides mechanical and environmental protection to the bare die. Second, the package provides an electrical connection between the die and the printed circuit board (PCB). Nowadays, there are a tremendous number of package types, form factors, and process techniques used in assembly and packaging.

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SEMI Equipment Brief: Other Front-End Equipment Brief (PDF)
Other Front-End equipment is a “catch-all” phrase for equipment that is used in frontend manufacturing but not in wafer processing. It includes: Wafer Manufacturing equipment, Photomask/Reticle equipment and Fabrication Facility equipment.

Semiconductor Materials Briefs

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SEMI Materials Brief: Silicon-on-Insulator (SOI) Wafers (PDF)
Silicon-on-insulator (SOI) wafers were first developed for military applications in the 1960s. During the past 45 years, SOI technology has evolved and is being be adopted in the production of very sophisticated semiconductor devices.

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SEMI Materials Brief: Sputtering Targets (PDF)
Sputtering is a type of physical vapor deposition (PVD) that is used to deposit thin films onto various surfaces (e.g. semiconductor wafers) by physical means, as compared to chemical vapor deposition (CVD). In PVD, the target source is bombarded with argon ions, which knock off atoms from the target that coat a receiving wafer creating a uniform metal film on the wafer.

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SEMI Materials Brief: Semiconductor Process Chemicals (PDF)
The International Technology Road Map for Semiconductors (ITRS) outlines increasingly higher chemical purity levels required by the semiconductor industry. Currently, there are several grades of chemicals available, and the migration to the highest purity levels has been relatively slow. This can be attributed to the substantially higher costs associated with producing these chemicals and their associated higher prices.

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SEMI Materials Brief: Organic Substrates (PDF)
In the past decade, high volume IC packaging has shifted from the era of ceramic packages to organic substrate-based packages, especially the plastic ball grid array (PBGA). The shift from ceramic to laminate substrates for packaging central processing unit (CPU) microprocessors facilitated this migration to organic substrates by providing a volume application that enabled the technology to mature faster. Flex circuit or tape substrates are a niche market for large die packaging, but are also used in volume for chip scale packages (CSPs) including some stacked die packages. Increasingly many of the new CSP designs are using a rigid laminate substrate rather than flex circuit.

Member Only Content


SEMI Materials Brief: Leadframes (PDF)
A leadframe consists of a die mounting paddle and lead fingers. The die paddle serves primarily to mechanically support the die during package manufacture. The lead fingers connect the die to the circuitry external to the package.

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SEMI Materials Brief: Die Attach Materials (PDF)
Die attach materials provide the mechanical and thermal connection between the semiconductor device and the package. These materials are used in paste, tape or solder form. This market brief covers paste and tape materials only.

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SEMI Materials Brief: Encapsulant Materials (PDF)
Encapsulant materials are polymeric-based materials used to provide mechanical and environmental protection of a semiconductor device. Mold compounds, underfill, and liquid encapsulants fall into this category. At the most basic level, these materials are formulated using a combination of raw materials: organic resins, fillers, catalysts, and a pigment or coloration. Additives include flame retardants, adhesion promoters, mold release materials, ion traps, and stress relievers.

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SEMI Materials Brief: Bonding Wire (PDF)
Wire bonding is used throughout the microelectronics industry as a means of interconnecting chips, substrates, and output pins. Wire forms the connections between the bond pad on the IC and the bonding fingers of the leadframe, plastic laminate, or ceramic substrate. The bonding method utilized is a function of the wire material and the substrate.

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SEMI Materials Brief: Semiconductor Photoresists (PDF)
Improvements in semiconductor performance continue to be made, largely driven by advances in optical lithography equipment, photomask, and photoresist (resist) materials. In particular, the design and development of photoresists that are sensitive to short exposure wavelengths have enabled the industry to migrate to smaller device sizes. Photoresist allows precise pattern formation upon exposure to light through a template called a photomask and subsequent etching of portions of the photoresist, resulting in the permanent transfer of patterns to the wafer substrate.

Member Only Content


SEMI Materials Brief: Prime Polished Silicon Wafers (PDF)
A wafer is a thin slice of semiconducting material upon which microcircuits are constructed by doping (via diffusion or ion implantation), chemical etching, and deposition of various materials.

Member Only Content


SEMI Materials Brief: Semiconductor Photoresist Removers (PDF)
Removal Materials are wet chemical solutions used to remove the photoresist left on the wafer after processing as well as for cleaning wafers immediately after etch processes on aluminum (Al), tungsten (W), titanium (Ti), titanium nitride (TiN), dielectric oxides, and polysilicon surfaces. Resist removal for greater than 0.50 micron geometries is referred to as a wet-wet process, since these chemical solutions are used to remove both the photoresist mask and photoresist residues.

Member Only Content


SEMI Materials Brief: Polycrystalline Silicon (PDF)
Polycrystalline silicon, also called poly or polysilicon, is one of the purest materials ever manufactured by mankind. Nonetheless, much work is still being done to reduce metal contamination levels and improve uniformity. It is used as the charge material in the silicon ingot growth process and therefore dictates the purity of wafers.

Member Only Content


Materials Brief: Semiconductor Photomasks (PDF)
A photomask, also called a reticle, is a transparent glass or quartz plate with an array of patterns or images. These materials permit the passage of light in intricate and precise patterns. The patterns or images emerge by creating transparent and opaque regions on the plate through the photolithography process in semiconductor manufacturing. Each pattern consists of opaque and transparent areas that precisely control the passage of light to cast the image of the size and shape of the device elements in a semiconductor circuit.

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SEMI Materials Brief: Epitaxial or Epi Silicon Wafers (PDF)
There are two types of epitaxial or epi silicon wafers used in the semiconductor industry: discrete and MOS.

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SEMI Materials Brief: Chemical Mechanical Planarization Materials (PDF)
The manufacture of a semiconductor device is essentially achieved by building alternating layers of metal and insulator materials on a silicon substrate. Prior to the 1990s Chemical Mechanical Planarization (CMP) was looked on as too "dirty" to be included in high-precision fabrication processes, since abrasion tends to create particles and the abrasives themselves are not without impurities. However, given the small size and complexity of today’s advanced semiconductor devices, it is essential that these layers be extremely flat for lithographic processing. In order to achieve the required flatness, CMP is utilized.

Member Only Content


SEMI Materials Brief: Semiconductor Photoresists Developers (PDF)
Aqueous or water-based developers are used in the lithography process to pattern photoresist films immediately after the exposure process. For positive photoresists, the developer removes film in the exposed wafer regions to produce device patterns. For negative photoresists, the developer removes film in the unexposed wafer regions to produce device patterns.

Member Only Content


SEMI Materials Brief: Semiconductor Anti-Reflective Coatings (PDF)
Extending performance of lithography and photoresists to meet shrinking device requirements is challenged by film properties on levels such as polysilicon, aluminum, and copper. Patterning devices during lithography exposure is difficult due to the highly reflective nature of these films, varying photoresist thickness, and device topography. In order to minimize these effects, materials called anti-reflective coatings (ARC) are applied to wafers either immediately before or after photoresist coating.




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