Christophe Lécuyer
Dados Biográficos
| ID | 87946 |
|---|---|
| NOME | Christophe Lécuyer |
| PRENOMES | Christophe |
| SOBRENOME | Lécuyer |
| ASSINATURA | LÉCUYER C |
| AFILIAÇÕES | Lyon 1 Université |
| ORCID | 0000-0001-9513-2492 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 35 |
| TOTAL DE CITAÇÕES | 126 |
| TOTAL COMO AUTOR | 35 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1999 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2025 |
| ÍNDICE H | 5 |
Labour for Clean Groundwater
The Empire Builders
When Silicon Valley Feared Bhopal
In Silicon Valley, the Bhopal disaster led to a bitter controversy regarding poisonous gases used in high-tech manufacturing. Concerned by the potential release of deadly gases by semiconductor plants, fire departments drafted a stringent ordinance regarding their use, handling, and storage. Microelectronics firms opposed the ordinance and campaigned for a weaker set of rules. As public opinion shifted toward strict regulation, the Inter-Governme…
Geographic origin and social status of the Gallic warriors from Ribemont‐sur‐Ancre (France) studied through isotope systematics of bone remains
Ribemont‐sur‐Ancre, France, is the biggest excavated human skeletal assemblage of Northern Gaul. It is interpreted as a post‐battle deposit constructed to celebrate war. However, the chronology of the site, its organization and the origin of the buried warriors are still poorly understood. These problems are studied by a multi‐proxy approach, based on radiocarbon dating, stable and radiogenic isotope analysis of bone remains from three structures…
Hydrogen isotope measurements of bone and dental tissues from archaeological human and animal samples and their use as climatic and diet proxies
Waziers (France)
La dernière période interglaciaire (Last Interglacial, LIG, ou Stade Isotopique Marin 5.5, SIM 5.5), comprise entre environs 129 et environs 16 milliers d’années avant aujourd’hui (ci-dessous ka), est peu documentée, en particulier en domaine continental en raison de la rareté des dépôts attribuables à cette période qui correspond à l’Eemien dans la chronostratigraphie de l’Europe du nord-ouest. Le manque de documentation est encore plus prononcé…
Climate conditions and dietary practices during the Second Iron Age studied through the multi-isotope analysis of bones and teeth from individuals of Thézy-Glimont, Picardie, France
Mouvement syndical et critique écologique des industries numériques dans la Silicon Valley
La critique écologique des industries numériques apparaît à la fin des années 1970 et au début des années 1980. S'appuyant sur l'examen d'un corpus d'archives et sur des entretiens avec les activistes qui l'ont initiée, cet article démontre que la critique environnementale du numérique nait d'un effort de syndicalisation de l'industrie des semi-conducteurs dans la Silicon Valley. Afin de syndicaliser les fabricants de puces électroniques, des mil…
Climatic change and diet of the pre-Hispanic population of Gran Canaria (Canary Archipelago, Spain) during the Medieval Warm Period and Little Ice Age
Reconstruction of sea-surface temperatures in the Canary Islands during Marine Isotope Stage 11
The study of paleoclimates enables us to improve and better constrain climate models in order to forecast future climate variations. Marine Isotope Stage 11 (MIS11), which began around 425,000 yr BP and lasted about 65,000 yr, is a warm isotope stage of paramount importance, because the astronomical configuration was similar to the one characterizing the Holocene. Therefore, this warm isotope stage is the most appropriate analog to present-day cl…
The Gauls experienced the Roman Warm Period
Driving Semiconductor Innovation
Gordon Moore designed Moore’s Law as a multifunctional tool to drive process and product innovation, sell Fairchild’s and Intel’s microchips, and outcompete other semiconductor firms. Because Intel’s ability to stay on Moore’s Law depended upon other corporations developing materials and manufacturing equipment for exponential scaling, Moore and his closest associates heavily promoted Moore’s Law in the microelectronics community. They also estab…
Organiser la rupture continue dans un écosystème industriel
International audience
Stable isotope analyses of the carbonate component of bones and teeth
Confronting the Japanese Challenge
Like many other American corporations, Intel was outcompeted in manufacturing by Japanese firms in the late 1970s and the first half of the 1980s. By 1985, it became clear that the corporation's weakness in production endangered its long-term survival. Responding to the Japanese challenge, Intel's upper management instigated a fundamental reform of manufacturing. At their behest, production engineers and managers adopted Japanese manufacturing te…
Tsunami sedimentary deposits of Crete records climate during the ‘Minoan Warming Period’ (≈3350 yr BP)
Earthquakes or explosive eruptions generate tsunami, which are at the origin of thick and chaotic coastal sediments. These commonly fossiliferous deposits are formed instantaneously at the historical or geological timescale and therefore have the potential to provide snapshot records of past climates. In Crete, near the city of Palaikastro, crops out a 1- to 9-m-thick sedimentary layer deposited by a huge tsunami that has been previously estimate…
From Clean Rooms to Dirty Water
This article argues that labor activists initiated Silicon Valley’s antitoxics movement and were the driving force behind environmental remediation in the region in the first half of the 1980s. In order to unionize semiconductor plants, activists associated with SCCOSH and United Electrical, Radio, and Machine Workers, a left-wing union, attacked corporate negligence regarding worker safety and health. SCCOSH later allied itself with the Central …
Carbon, nitrogen and oxygen isotope fractionation during food cooking
OBJECTIVES: Stable isotope data provide insight into the reconstruction of ancient human diet. However, cooking may alter the original stable isotope compositions of food due to losses and modifications of biochemical and water components. METHODS: To address this issue, carbon, nitrogen and oxygen isotope ratios were measured on meat aliquots sampled from various animals such as pork, beef, duck and chicken, and also from the flesh of fishes suc…
Summer air temperature, reconstructions from the last glacial stage based on rodents from the site Taillis-des-Coteaux (Vienne), Western France
The oxygen isotope composition of phosphate from tooth enamel of rodents (δ 18 O p ) constitutes a valuable proxy to reconstruct past air temperatures in continental environments. This method has been applied to rodent dental remains from three genera, Arvicola sp., Microtus sp. and Dicrostonyx sp., coming from Taillis-des-Coteaux, Vienne, France. This archaeological site contains an exceptionally preserved sedimentary sequence spanning almost th…
Diet of ancient Egyptians inferred from stable isotope systematics
Late Pleistocene (MIS 3–4) climate inferred from micromammal communities and δ 18 O of rodents from Les Pradelles, France
The middle Paleolithic stratigraphic sequence of Les Pradelles (Charente, France) spans from the end of Marine Isotope Stage (MIS) 4 until the middle of MIS 3. Micromammal remains are present in all the stratigraphic levels, offering a rare opportunity to address the questions of both environmental and climatic fluctuations throughout this period. Climate modes were studied through the taphonomy, biodiversity and oxygen isotope compositions of ph…
Stable isotope ecology of Miocene bovids from northern Greece and the ape/monkey turnover in the Balkans
The Logics of Materials Innovation
This article examines the rise of gallium nitride as a major semiconductor material at the center of a new industry, solid-state lighting. It argues that the development of gallium nitride was shaped by the interplay of three contextual logics: material logic (the materiality of substances, tools, and fabrication techniques); market logic (the needs, demands, and interests of intended users); and competitive logic (the competitive tensions among …
Les secrets de la Silicon Valley ou les entreprises américaines de microélectronique face à l'incertitude technique
Les entreprises de semi-conducteurs ont développé plusieurs stratégies pour réduire les grandes incertitudes techniques auxquelles elles ont fait face depuis plus d'un demi-siècle. Ces incertitudes étaient à la fois cognitives, matérielles et prospectives. Pour gérer ces incertitudes, les entreprises de semi-conducteurs ont dans un premier temps cherché à trouver un bon équilibre entre recherche fondamentale et ingénierie par tâtonnements. Pour c…
Digital Foundations
From 1960 onward, the expanding use of microchips played a major role in the establishment of the digital world. This paper examines the dominant manufacturing technology for microchips in this period: silicon-gate MOS technology . It reconstructs the development of silicon gate technology from its emergence at Bell Labs, Fairchild, General Micro-electronics, and Hughes in the mid-1960s to its stabilization at Intel and its augmentation with ion …
Oxygen isotope fractionation between human phosphate and water revisited
Diet of ancient Egyptians inferred from stable isotope systematics
Carbon, nitrogen and oxygen isotope fractionation during food cooking
OBJECTIVES: Stable isotope data provide insight into the reconstruction of ancient human diet. However, cooking may alter the original stable isotope compositions of food due to losses and modifications of biochemical and water components. METHODS: To address this issue, carbon, nitrogen and oxygen isotope ratios were measured on meat aliquots sampled from various animals such as pork, beef, duck and chicken, and also from the flesh of fishes suc…
Climatic change and diet of the pre-Hispanic population of Gran Canaria (Canary Archipelago, Spain) during the Medieval Warm Period and Little Ice Age
Stable isotope analyses of the carbonate component of bones and teeth
Climate conditions and dietary practices during the Second Iron Age studied through the multi-isotope analysis of bones and teeth from individuals of Thézy-Glimont, Picardie, France
Confronting the Japanese Challenge
Like many other American corporations, Intel was outcompeted in manufacturing by Japanese firms in the late 1970s and the first half of the 1980s. By 1985, it became clear that the corporation's weakness in production endangered its long-term survival. Responding to the Japanese challenge, Intel's upper management instigated a fundamental reform of manufacturing. At their behest, production engineers and managers adopted Japanese manufacturing te…
Stable isotope ecology of Miocene bovids from northern Greece and the ape/monkey turnover in the Balkans
Geographic origin and social status of the Gallic warriors from Ribemont‐sur‐Ancre (France) studied through isotope systematics of bone remains
Ribemont‐sur‐Ancre, France, is the biggest excavated human skeletal assemblage of Northern Gaul. It is interpreted as a post‐battle deposit constructed to celebrate war. However, the chronology of the site, its organization and the origin of the buried warriors are still poorly understood. These problems are studied by a multi‐proxy approach, based on radiocarbon dating, stable and radiogenic isotope analysis of bone remains from three structures…
Waziers (France)
La dernière période interglaciaire (Last Interglacial, LIG, ou Stade Isotopique Marin 5.5, SIM 5.5), comprise entre environs 129 et environs 16 milliers d’années avant aujourd’hui (ci-dessous ka), est peu documentée, en particulier en domaine continental en raison de la rareté des dépôts attribuables à cette période qui correspond à l’Eemien dans la chronostratigraphie de l’Europe du nord-ouest. Le manque de documentation est encore plus prononcé…
Mouvement syndical et critique écologique des industries numériques dans la Silicon Valley
La critique écologique des industries numériques apparaît à la fin des années 1970 et au début des années 1980. S'appuyant sur l'examen d'un corpus d'archives et sur des entretiens avec les activistes qui l'ont initiée, cet article démontre que la critique environnementale du numérique nait d'un effort de syndicalisation de l'industrie des semi-conducteurs dans la Silicon Valley. Afin de syndicaliser les fabricants de puces électroniques, des mil…
The Gauls experienced the Roman Warm Period
Tsunami sedimentary deposits of Crete records climate during the ‘Minoan Warming Period’ (≈3350 yr BP)
Earthquakes or explosive eruptions generate tsunami, which are at the origin of thick and chaotic coastal sediments. These commonly fossiliferous deposits are formed instantaneously at the historical or geological timescale and therefore have the potential to provide snapshot records of past climates. In Crete, near the city of Palaikastro, crops out a 1- to 9-m-thick sedimentary layer deposited by a huge tsunami that has been previously estimate…
Hydrogen isotope measurements of bone and dental tissues from archaeological human and animal samples and their use as climatic and diet proxies
Driving Semiconductor Innovation
Gordon Moore designed Moore’s Law as a multifunctional tool to drive process and product innovation, sell Fairchild’s and Intel’s microchips, and outcompete other semiconductor firms. Because Intel’s ability to stay on Moore’s Law depended upon other corporations developing materials and manufacturing equipment for exponential scaling, Moore and his closest associates heavily promoted Moore’s Law in the microelectronics community. They also estab…
Digital Foundations
From 1960 onward, the expanding use of microchips played a major role in the establishment of the digital world. This paper examines the dominant manufacturing technology for microchips in this period: silicon-gate MOS technology . It reconstructs the development of silicon gate technology from its emergence at Bell Labs, Fairchild, General Micro-electronics, and Hughes in the mid-1960s to its stabilization at Intel and its augmentation with ion …
High-Tech Corporatism
In this article I examine corporative management practices in electronics firms in Boston and in Silicon Valley from the 1920s to the 1960s. Managers in several key firms developed these practices in response to political and professional ideologies and as a way to address the problems of hiring, using, and retaining a highly skilled work force. They did this independently of the welfare capitalism plans of corporations such as Eastman Kodak and …
Silicon for industry
Most accounts of the microelectronics revolution have emphasized the role of military patronage and procurement in the shaping of silicon technology and the consolidation of the semiconductor industry. Little attention has been devoted, however, to the silicon industry's shift from military to commercial markets in the early and mid‐1960s. Drawing on an examination of Fairchild Semiconductor, the firm that initiated this shift, this essay argues …
Making Silicon Valley
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High-Tech Corporatism
In this article I examine corporative management practices in electronics firms in Boston and in Silicon Valley from the 1920s to the 1960s. Managers in several key firms developed these practices in response to political and professional ideologies and as a way to address the problems of hiring, using, and retaining a highly skilled work force. They did this independently of the welfare capitalism plans of corporations such as Eastman Kodak and …
Oxygen isotope compositions of phosphate from arvicoline teeth and Quaternary climatic changes, Gigny, French Jura
Oxygen isotope compositions of biogenic phosphates from mammals are widely used as proxies of the isotopic compositions of meteoric waters that are roughly linearly related to the air temperature at high- and mid-latitudes. An oxygen isotope fractionation equation was determined by using present-day European arvicoline (rodents) tooth phosphate: δ 18 O p = 20.98(±0.59) + 0.572(±0.065) δ 18 O w . This fractionation equation was applied to the Late…
The Materiality of Microelectronics
This study advocates for ‘materials‐centered’ accounts in the history of technology, and presents such an analysis for the early history of microelectronics. Innovations in semiconductor crystal production were central to the emergence of solid state electronics and the dynamics of the early semiconductor industry. In the late 1940s and early 1950s, the Bell Telephone Laboratories developed novel techniques for growing semiconductor single crysta…
Early Pleistocene climate changes in the central Mediterranean region as inferred from integrated pollen and planktonic foraminiferal stable isotope analyses
Vegetation inherited from a Pliocene subtropical climate evolved through obliquity oscillations and global cooling leading to modern conditions. An integrated, highly time-resolved record of pollen and stable isotopes ( δ 18 O and δ 13 C of Globigerina bulloides ) was obtained to understand vegetation responses to Early Pleistocene climate changes. Continental and marine responses are compared in the Central Mediterranean region with a particular…
Oxygen isotope fractionation between human phosphate and water revisited
High tech manufacturing
Responding to changes in both the US economy and society, in the late 1960s and 1970s social theorists forecasted the emergence of a new social and economic order: the post‐industrial society. Prom
From nuclear physics to semiconductor manufacturing
This article examines the emergence of ion implantation as a major semiconductor manufacturing process from the early 1960s through the late 1970s. Ion implantation techniques originated in nuclear physics research and were first employed to make solar cells for military satellites at the Ion Physics Corporation (IPC). This work at IPC inspired a research group at Sprague Electric to use ion implantation techniques to make transistors. Sprague's …
Late Pleistocene climatic change in the French Jura (Gigny) recorded in the δ 18 O of phosphate from ungulate tooth enamel
Oxygen isotope compositions of phosphate in tooth enamel from large mammals (i.e. horse and red deer) were measured to quantify past mean annual air temperatures and seasonal variations between 145 ka and 33 ka in eastern France. The method is based on interdependent relationships between the δ 18 O of apatite phosphate, environmental waters and air temperatures. Horse ( Equus caballus germanicus ) and red deer ( Cervus elaphus ) remains have δ 1…
The Logics of Materials Innovation
This article examines the rise of gallium nitride as a major semiconductor material at the center of a new industry, solid-state lighting. It argues that the development of gallium nitride was shaped by the interplay of three contextual logics: material logic (the materiality of substances, tools, and fabrication techniques); market logic (the needs, demands, and interests of intended users); and competitive logic (the competitive tensions among …
Les secrets de la Silicon Valley ou les entreprises américaines de microélectronique face à l'incertitude technique
Les entreprises de semi-conducteurs ont développé plusieurs stratégies pour réduire les grandes incertitudes techniques auxquelles elles ont fait face depuis plus d'un demi-siècle. Ces incertitudes étaient à la fois cognitives, matérielles et prospectives. Pour gérer ces incertitudes, les entreprises de semi-conducteurs ont dans un premier temps cherché à trouver un bon équilibre entre recherche fondamentale et ingénierie par tâtonnements. Pour c…
Digital Foundations
From 1960 onward, the expanding use of microchips played a major role in the establishment of the digital world. This paper examines the dominant manufacturing technology for microchips in this period: silicon-gate MOS technology . It reconstructs the development of silicon gate technology from its emergence at Bell Labs, Fairchild, General Micro-electronics, and Hughes in the mid-1960s to its stabilization at Intel and its augmentation with ion …
Late Pleistocene (MIS 3–4) climate inferred from micromammal communities and δ 18 O of rodents from Les Pradelles, France
The middle Paleolithic stratigraphic sequence of Les Pradelles (Charente, France) spans from the end of Marine Isotope Stage (MIS) 4 until the middle of MIS 3. Micromammal remains are present in all the stratigraphic levels, offering a rare opportunity to address the questions of both environmental and climatic fluctuations throughout this period. Climate modes were studied through the taphonomy, biodiversity and oxygen isotope compositions of ph…
Stable isotope ecology of Miocene bovids from northern Greece and the ape/monkey turnover in the Balkans
Summer air temperature, reconstructions from the last glacial stage based on rodents from the site Taillis-des-Coteaux (Vienne), Western France
The oxygen isotope composition of phosphate from tooth enamel of rodents (δ 18 O p ) constitutes a valuable proxy to reconstruct past air temperatures in continental environments. This method has been applied to rodent dental remains from three genera, Arvicola sp., Microtus sp. and Dicrostonyx sp., coming from Taillis-des-Coteaux, Vienne, France. This archaeological site contains an exceptionally preserved sedimentary sequence spanning almost th…
Diet of ancient Egyptians inferred from stable isotope systematics
From Clean Rooms to Dirty Water
This article argues that labor activists initiated Silicon Valley’s antitoxics movement and were the driving force behind environmental remediation in the region in the first half of the 1980s. In order to unionize semiconductor plants, activists associated with SCCOSH and United Electrical, Radio, and Machine Workers, a left-wing union, attacked corporate negligence regarding worker safety and health. SCCOSH later allied itself with the Central …
Carbon, nitrogen and oxygen isotope fractionation during food cooking
OBJECTIVES: Stable isotope data provide insight into the reconstruction of ancient human diet. However, cooking may alter the original stable isotope compositions of food due to losses and modifications of biochemical and water components. METHODS: To address this issue, carbon, nitrogen and oxygen isotope ratios were measured on meat aliquots sampled from various animals such as pork, beef, duck and chicken, and also from the flesh of fishes suc…
Tsunami sedimentary deposits of Crete records climate during the ‘Minoan Warming Period’ (≈3350 yr BP)
Earthquakes or explosive eruptions generate tsunami, which are at the origin of thick and chaotic coastal sediments. These commonly fossiliferous deposits are formed instantaneously at the historical or geological timescale and therefore have the potential to provide snapshot records of past climates. In Crete, near the city of Palaikastro, crops out a 1- to 9-m-thick sedimentary layer deposited by a huge tsunami that has been previously estimate…
Stable isotope analyses of the carbonate component of bones and teeth
Confronting the Japanese Challenge
Like many other American corporations, Intel was outcompeted in manufacturing by Japanese firms in the late 1970s and the first half of the 1980s. By 1985, it became clear that the corporation's weakness in production endangered its long-term survival. Responding to the Japanese challenge, Intel's upper management instigated a fundamental reform of manufacturing. At their behest, production engineers and managers adopted Japanese manufacturing te…
Reconstruction of sea-surface temperatures in the Canary Islands during Marine Isotope Stage 11
The study of paleoclimates enables us to improve and better constrain climate models in order to forecast future climate variations. Marine Isotope Stage 11 (MIS11), which began around 425,000 yr BP and lasted about 65,000 yr, is a warm isotope stage of paramount importance, because the astronomical configuration was similar to the one characterizing the Holocene. Therefore, this warm isotope stage is the most appropriate analog to present-day cl…
The Gauls experienced the Roman Warm Period
Driving Semiconductor Innovation
Gordon Moore designed Moore’s Law as a multifunctional tool to drive process and product innovation, sell Fairchild’s and Intel’s microchips, and outcompete other semiconductor firms. Because Intel’s ability to stay on Moore’s Law depended upon other corporations developing materials and manufacturing equipment for exponential scaling, Moore and his closest associates heavily promoted Moore’s Law in the microelectronics community. They also estab…
Archaeology and ancient environmental studies (13 obras) · Isotope Analysis in Ecology (13 obras) · Stable isotope ratio (12 obras) · Isotopes of oxygen (11 obras) · Engineering (9 obras) · Geochemistry (9 obras) · Geology (9 obras) · Business (8 obras) · Geology and Paleoclimatology Research (8 obras) · Political science (8 obras)