Description of Industries and Summary of Findings INDUSTRY 3671, ELECTRON TUBES This industry is made up of establishments primarily engaged in manufacturing electron tubes and tube parts. Establishments primarily engaged in manufacturing X-ray tubes and parts are classified in industry 3844. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3671, Electron Tubes, had employment of 22.2 thousand. The employment figure was 22 percent below the 28.4 thousand reported in 1987. The leading States in employment in 1992 were California, Illinois, Ohio, and Pennsylvania. This represents a shift from 1987 when California, Pennsylvania, Illinois, and Massachusetts were the leading States. The total value of shipments for establishments classified in this industry was $3.1 billion. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3671 shipped $2.8 billion of electron tubes products considered primary to the industry, $135.4 million of secondary products, and had $161.8 million of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 95 percent (specialization ratio). In 1987, the specialization ratio was 83 percent. Establishments in this industry also accounted for 85 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio was 93 percent. The products primary to industry 3671, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $3.4 billion. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the electron tubes industry amounted to $1.9 billion. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 15 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 1 percent of the total value of shipments. INDUSTRY 3672, PRINTED CIRCUIT BOARDS This industry is made up of establishments primarily engaged in manufacturing printed circuit boards. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3672, Printed Circuit Boards, had employment of 75.8 thousand. The employment figure was 14 percent above the 66.6 thousand reported in 1987. Compared with 1991, employment increased 8 percent. The 1991 data are based on the Census Bureau's annual survey of manufactures (ASM), which is a sample survey conducted each year between censuses. The leading States in employment in 1992 were California, New York, Minnesota, and Illinois, accounting for approximately 59 percent of the industry's employment. This represents a shift from 1987 when California, Minnesota, New York, and Massachusetts were the leading States. The total value of shipments for establishments classified in this industry was $7.3 billion. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3672 shipped $5.9 billion of printed circuit boards considered primary to the industry, $1.2 billion of secondary products, and had $271.0 million of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 83 percent (specialization ratio). In 1987, the specialization ratio was 97 percent. Establishments in this industry also accounted for 93 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio was 92 percent. The products primary to industry 3672, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $6.3 billion. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the printed circuit boards industry amounted to $3.0 billion. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 10 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 3 percent of the total value of shipments. INDUSTRY 3674, SEMICONDUCTORS AND RELATED DEVICES This industry is made up of establishments primarily engaged in manufacturing semiconductors and related solid-state devices. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3674, Semiconductors and Related Devices, had employment of 171.9 thousand. The employment figure was 7 percent below the 184.6 thousand reported in 1987. Compared with 1991, employment decreased 2 percent. The 1991 data are based on the Census Bureau's annual survey of manufactures (ASM), which is a sample survey conducted each year between censuses. The leading States in employment in 1992 were California, Texas, Arizona, and Massachusetts, accounting for approximately 60 percent of the industry's employment. This represents a shift from 1987 when California, Arizona, Texas, and New York accounted for approximately 62 percent of the industry's employment. The total value of shipments for establishments classified in this industry was $32.2 billion. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3674 shipped $28.4 billion of semiconductors and related devices products considered primary to the industry, $1.2 billion of secondary products, and had $2.5 billion of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 96 percent (specialization ratio). In 1987, the specialization ratio also was 96 percent. Establishments in this industry also accounted for 97 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio was 95 percent. The products primary to industry 3674, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $29.4 billion. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the semiconductors and related devices industry amounted to $9.8 billion. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 10 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 1 percent of the total value of shipments. INDUSTRY 3675, ELECTRONIC CAPACITORS This industry is made up of establishments primarily engaged in manufacturing electronic capacitors. Establishments primarily engaged in manufacturing electrical capacitors are classified in industry 3629. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3675, Electronic Capacitors, had employment of 17.9 thousand. The employment figure was 18 percent below the 21.7 thousand reported in 1987. The leading States in employment in 1992 were South Carolina, California, North Carolina, and New York, accounting for approximately 56 percent of the industry's employment. This represents a shift from 1987 when South Carolina, California, New York, and Massachusetts accounted for approximately 50 percent of the industry's employment. The total value of shipments for establishments classified in this industry was $1.6 billion. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3675 shipped $1.3 billion of electronic capacitor products considered primary to the industry, $95.2 million of secondary products, and had $205.5 million of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 93 percent (specialization ratio). In 1987, the specialization ratio also was 93 percent. Establishments in this industry also accounted for 95 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio was 97 percent. The products primary to industry 3675, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $1.4 billion. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the electronic capacitors industry amounted to $703.0 million. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 15 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 1 percent of the total value of shipments. INDUSTRY 3676, ELECTRONIC RESISTORS This industry is made up of establishments primarily engaged in manufacturing electronic resistors. Establishments primarily engaged in manufacturing resistors for telephone and telegraph apparatus are classified in industry 3661. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3676, Electronic Resistors, had employment of 11.7 thousand. The employment figure was 25 percent below the 15.7 thousand reported in 1987. Compared with 1991, employment decreased 9 percent. The 1991 data are based on the Census Bureau's annual survey of manufactures (ASM), which is a sample survey conducted each year between censuses. The leading States in employment in 1992 were California, Nebraska, Texas, and Florida. This represents a shift from 1987 when California, Texas, Indiana, and Nebraska were the leading States. The total value of shipments for establishments classified in this industry was $827.2 million. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3676 shipped $715.9 million of electronic resistor products considered primary to the industry, $45.8 million of secondary products, and had $65.5 million of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 94 percent (specialization ratio). In 1987, the specialization ratio was 95 percent. Establishments in this industry also accounted for 95 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio was 94 percent. The products primary to industry 3676, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $753.7 million. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the electronic resistors industry amounted to $258.3 million. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 15 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 1 percent of the total value of shipments. INDUSTRY 3677, ELECTRONIC COILS AND TRANSFORMERS This industry is made up of establishments primarily engaged in manufacturing electronic coils, transformers, and inductors. Establishments primarily engaged in manufacturing electrical transformers are classified in industry 3612. Establishments primarily engaged in manufacturing transformers and inductors for telephone and telegraph apparatus are classified in industry 3661, and those manufacturing semiconductors and related devices are classified in industry 3674. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3677, Electronic Coils and Transformers, had employment of 19.2 thousand. The employment figure was 20 percent below the 23.9 thousand reported in 1987. Compared with 1991, employment decreased 12 percent. The 1991 data are based on the Census Bureau's annual survey of manufactures (ASM), which is a sample survey conducted each year between censuses. The leading States in employment in 1992 were Illinois, California, New York, and Indiana, accounting for approximately 45 percent of the industry's employment. These same States were the leaders in 1987. The total value of shipments for establishments classified in this industry was $1.1 billion. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3677 shipped $1.0 billion of electronic coils and transformers considered primary to the industry, $64.7 million of secondary products, and had $20.3 million of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 94 percent (specialization ratio). In 1987, the specialization ratio was 90 percent. Establishments in this industry also accounted for 90 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio was 91 percent. The products primary to industry 3677, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $1.2 billion. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the electronic coils and transformers industry amounted to $452.3 million. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 10 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 2 percent of the total value of shipments. INDUSTRY 3678, ELECTRONIC CONNECTORS This industry is made up of establishments primarily engaged in manufacturing electronic connectors. Establishments primarily engaged in manufacturing electrical connectors are classified in industry 3643. Establishments primarily engaged in manufacturing electronic capacitors are classified in industry 3675, and those manufacturing electronic coils, transformers, and other inductors are classified in industry 3677. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3678, Electronic Connectors, had employment of 30.7 thousand. The employment figure was 28 percent below the 42.8 thousand reported in 1987. Compared with 1991, employment decreased 9 percent. The 1991 data are based on the Census Bureau's annual survey of manufactures (ASM), which is a sample survey conducted each year between censuses. The leading States in employment in 1992 were California, Pennsylvania, New York, and Missouri, accounting for approximately 55 percent of the industry's employment. This represents a shift from 1987 when California, Pennsylvania, New York, and Connecticut accounted for approximately 61 percent of the industry's employment. The total value of shipments for establishments classified in this industry was $3.8 billion. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3678 shipped $3.3 billion of electronic connectors products considered primary to the industry, $312.3 million of secondary products, and had $136.3 million of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 91 percent (specialization ratio). In 1987, the specialization ratio was 87 percent. Establishments in this industry also accounted for 89 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio was 92 percent. The products primary to industry 3678, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $3.7 billion. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the electronic connectors industry amounted to $1.4 billion. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 20 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 10 percent of the total value of shipments. INDUSTRY 3679, ELECTRONIC COMPONENTS, N.E.C. This industry is made up of establishments primarily engaged in manufacturing electronic components, not elsewhere classified, such as receiving antennas, switches, and waveguides. Establishments primarily engaged in manufacturing radio and television transmitting antennas are classified in industry 3663. The 1992 definition of this industry is the same as that used in the 1987 Standard Industrial Classification (SIC) system. The SIC number and title also are the same. In the 1992 Census of Manufactures, Industry 3679, Electronic Components, N.E.C., had employment of 182.4 thousand. The employment figure was 12 percent below the 162.6 thousand reported in 1987. Compared with 1991, employment decreased 10 percent. The 1991 data are based on the Census Bureau's annual survey of manufactures (ASM), which is a sample survey conducted each year between censuses. The leading States in employment in 1992 were California, Texas, Massachusetts, and New York, accounting for approximately 46 percent of the industry's employment. These same States were the leaders in 1987 when they accounted for 52 percent of the industry's employment. The total value of shipments for establishments classified in this industry was $23.9 billion. Establishments in virtually all industries ship secondary products as well as products primary to the industry in which they are classified and have some miscellaneous receipts, such as resales and contract receipts. Industry 3679 shipped $19.8 billion of electronic components, not elsewhere classified, considered primary to the industry, $2.9 billion of secondary products, and had $1.1 billion of miscellaneous receipts, resales, and contract work. Thus, the ratio of primary products to the total of both secondary and primary products shipped by establishments in this industry was 87 percent (specialization ratio). In 1987, the specialization ratio was 83 percent. Establishments in this industry also accounted for 78 percent of products considered primary to the industry no matter where they were actually produced (coverage ratio). In 1987, the coverage ratio was 83 percent. The products primary to industry 3679, no matter in what industry they were produced, appear in file MC92F6A and aggregate to $25.4 billion. For further explanation of specialization and coverage ratios, see file MC92F5B and the appendixes. The total cost of materials, services, and fuels and energy used by establishments classified in the electronic components, not elsewhere classified, industry amounted to $11.8 billion. Data on specific materials consumed appear in file MC92F7. Single-establishment companies in this industry with less than 10 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were obtained from administrative records of other agencies or developed from industry averages. These establishments accounted for 1 percent of the total value of shipments.