Employees work at the Impossible Foods headquarters in Silicon Valley, in San Francisco, California, U.S., December 19, 2019. REUTERS/Richa Naidu

A banh mi sandwich made with a plant-based Impossible Pork patty at the Impossible Foods headquarters in Silicon Valley, in San Francisco, California, U.S., December 19, 2019. REUTERS/Richa Naidu

A banh mi sandwich made with a plant-based Impossible Pork patty at the Impossible Foods headquarters in Silicon Valley, in San Francisco, California, U.S., December 19, 2019. REUTERS/Richa Naidu

A plant-based Impossible Pork patty is cooked at the Impossible Foods headquarters in Silicon Valley, in San Francisco, California, U.S., December 19, 2019. REUTERS/Richa Naidu

A worker conducts quality-check of a solar module product at a factory of a monocrystalline silicon solar equipment manufacturer LONGi Green Technology Co, in Xian, Shaanxi province, China December 10, 2019. Picture taken December 10, 2019. REUTERS/Muyu Xu

A self-driving vehicle is seen at the Silicon Valley headquarters of software supplier Phantom Auto in Mountain View, California, U.S. September 13, 2019. REUTERS/Alexandria Sage

Phantom Auto co-founders Shai Magzimof and Elliot Katz pose for a photo at the company's Silicon Valley headquarters in Mountain View, California, U.S. September 13, 2019. REUTERS/Alexandria Sage

Remote operator Magi Frazier guides a self-driving vehicle from a console at the Silicon Valley headquarters of software supplier Phantom Auto, as company's co-founder Elliot Katz looks on in Mountain View, California, U.S. September 13, 2019. REUTERS/Alexandria Sage

Remote operator Magi Frazier guides a self-driving vehicle from a console at the Silicon Valley headquarters of software supplier Phantom Auto in Mountain View, California, U.S. September 13, 2019. REUTERS/Alexandria Sage

The Silicon Valley office of Huawei and its U.S. subsidiary Futurewei Technologies Inc. in Santa Clara, California, U.S., July 22, 2019. REUTERS/Lanhee Lee

Buzz Aldrin's extra-vehicular gloves, with silicone rubber fingertips, are pictured at the "Destination Moon: The Apollo 11 Mission" exhibit at the Museum of Flight in Seattle, Washington, U.S., July 16, 2019. REUTERS/Lindsey Wasson

Buzz Aldrin's extra-vehicular visor assembly and extra-vehicular gloves, with silicone rubber fingertips, are pictured at the "Destination Moon: The Apollo 11 Mission" exhibit at the Museum of Flight in Seattle, Washington, U.S., July 16, 2019. REUTERS/Lindsey Wasson

A child hides his face during a photo opportunity with Democratic presidential candidate and Silicon Valley businessman Andrew Yang (R) at the SC Democratic Convention in Columbia, South Carolina, U.S., June 22, 2019. REUTERS/Randall Hill

Democratic presidential candidate and Silicon Valley businessman Andrew Yang enters the SC Democratic Convention in Columbia, South Carolina, U.S., June 22, 2019. REUTERS/Randall Hill

Occupants, inside a car, are seen on a monitor using technology by Silicon Valley company Eyeris, which uses cameras and AI to track drivers and passengers for safety benefits, shown during an interview in San Jose, California, U.S., December 28, 2018. Picture taken December 28, 2018. REUTERS/Alexandria Sage

Modar Alaoui, the founder and CEO of Silicon Valley startup Eyeris, which will be showcasing its technology at the Las Vegas CES international technology conference, points to an interior camera used for driver monitoring and in-vehicle scene understanding, during an interview in San Jose, California, U.S., December 28, 2018. Picture taken December 28, 2018. REUTERS/Alexandria Sage

SunPower Corporation, headquartered in Silicon Valley, recently acquired SolarWorld Hillsboro manufacturing plant is seen in Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

SunPower Corporation, headquartered in Silicon Valley recently acquired SolarWorld Hillsboro manufacturing plant is seen in Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

Vern Edwards, SunPower Corporation, headquartered in Silicon Valley, module production manager stands in front of its solar panel manufacturing plant in Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

P-Series solar panel manufacturing technology is seen at SunPower Corporation, headquartered in Silicon Valley, Hillsboro manufacturing plant Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

P-Series solar panel manufacturing technology is seen at SunPower Corporation, headquartered in Silicon Valley, Hillsboro manufacturing plant Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

SunPower Corporation, headquartered in Silicon Valley, equipment technicians install P-Series solar panel manufacturing technology at its Hillsboro manufacturing plant in Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

SunPower Corporation, headquartered in Silicon Valley, equipment technicians install P-Series solar panel manufacturing technology at its Hillsboro manufacturing plant in Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

SunPower Corporation, headquartered in Silicon Valley, equipment technicians install P-Series solar panel manufacturing technology at its Hillsboro manufacturing plant in Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

SunPower Corporation, headquartered in Silicon Valley, equipment technicians install P-Series solar panel manufacturing technology at its Hillsboro manufacturing plant in Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

P-Series solar panel manufacturing technology is seen at SunPower Corporation, headquartered in Silicon Valley, Hillsboro manufacturing plant Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

P-Series solar panel manufacturing technology is seen at Sunpower Corporation, headquartered in Silicon Valley, Hillsboro manufacturing plant Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

P-Series solar panel manufacturing technology is seen at SunPower Corporation, headquartered in Silicon Valley, Hillsboro manufacturing plant Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

P-Series solar panel manufacturing technology is seen at SunPower Corporation, headquartered in Silicon Valley, Hillsboro manufacturing plant Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

SunPower Corporation, headquartered in Silicon Valley, equipment technicians install P-Series solar panel manufacturing technology at its Hillsboro manufacturing plant in Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

A SunPower Corporation, headquartered in Silicon Valley, equipment technician installs P-Series solar panel manufacturing technology at its Hillsboro manufacturing plant in Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

SunPower Corporation, headquartered in Silicon Valley, recently acquired SolarWorld Hillsboro manufacturing plant is seen in Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

SunPower Corporation, headquartered in Silicon Valley, recently acquired SolarWorld Hillsboro manufacturing plant is seen in Hillsboro, Oregon, U.S., November 7, 2018. REUTERS/Steve Dipaola

Young Sohn, Samsung's Silicon Valley-based president and chief strategy officer, attends an interview with Reuters during the Web Summit in Lisbon, Portugal November 6, 2018. REUTERS/Axel Bugge

Solar panel components are seen at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

Solar panel components are seen at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

Employees work at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

An employee works at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

An employee works at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

Employees work at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

An employee works at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

An employee works at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

An employee works at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

Employees work at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

Employees work at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

An employee works at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

An employee works at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

An employee works at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

Employees work at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

Employees work at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

Employees work at Veolia’s solar panel recycling plant in Rousset, France, June 25, 2018. At the plant, photovoltaic panels are dissembled and their constituent parts such as glass, aluminium, silicon and plastics are recycled. REUTERS/Jean-Paul Pelissier

Silicon bath toys and blocks of soap sit on racks in the bathroom of Marion de la Porte, founding member of cooperative Sin Plastico (Without Plastic), which offers environmentally friendly household items free from plastic materials and packaging, in Bilbao, Spain April 6, 2018. REUTERS/Vincent West

Luo Xixi, a U.S.-based Chinese software engineer, poses for pictures in Silicon Valley, San Francisco Bay Area, U.S., January 28, 2018. Picture taken January 28, 2018. REUTERS/Stephen Lam

Luo Xixi, a U.S.-based Chinese software engineer, poses for pictures in Silicon Valley, San Francisco Bay Area, U.S., January 28, 2018. Picture taken January 28, 2018. REUTERS/Stephen Lam

Luo Xixi, a U.S.-based Chinese software engineer, poses for pictures in Silicon Valley, San Francisco Bay Area, U.S., January 28, 2018. Picture taken January 28, 2018. REUTERS/Stephen Lam

Luo Xixi, a U.S.-based Chinese software engineer, poses for pictures in Silicon Valley, San Francisco Bay Area, U.S., January 28, 2018. Picture taken January 28, 2018. REUTERS/Stephen Lam