Signetics

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Signetics Corporation was an American electronics manufacturer specifically established in Silicon Valley to make integrated circuits.<ref name="SVHA">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Founded in 1961, they went on to develop a number of early microprocessors and support chips, as well as the widely used 555 timer chip. The company was bought by Philips in 1975 and incorporated in Philips Semiconductors (now NXP).<ref name="SVHA"/>

History

Template:Plain image with caption The formation of Signetics at 680 West Maude Avenue<ref>Template:Cite news</ref> in Sunnyvale, California was announced on October 16, 1961 by a group of engineers formerly with Fairchild Semiconductor.<ref name="SVHA"/><ref name="cfc_1961-11-06"/>

Signetics founders<ref name="cfc_1961-11-06">Template:Cite news</ref>
Name Postion at Fairchild
Dr. B. David James President head of Physics Dept
David F. Allison Vice-President head of Device Development Dept
Lionel E. Kattner technical staff
Mark Weissenstern
citation
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}}</ref>

Warren Hellman Lehman Brothers
Theodore Petterson former president of Standard Oil of California
David James
Lionel Kattner
Whit Budge attorney

At the time, Fairchild was concentrating on its discrete component business (mostly transistors), and its management felt that by making integrated circuits (ICs) it would lose its customers. Signetics founders believed that ICs were the future of electronics (much like another contemporary Fairchild spinoff, Amelco) and wished to commercialize them. The name of the new company was coined from Signal Network Electronics.

Lionel Kattner in 2007 recollected that "Sig" and "netics" as common word fragments in the industry had just popped into his head.<ref name="kattner2007">Template:Cite interview</ref>Template:Rp

The venture was financed by a group organized through Lehman Brothers, who invested $1M. The initial idea was to design and manufacture ICs for specific customers. In order to facilitate this goal, Signetics did not have a separate R&D lab; instead, the engineering was all done in technical development department, and was closely tied to marketing.

Signetics first developed a small number of standard DTL ICs, which it announced in 1962.

Early Signetics DTL ICs,<ref name="Khambata63">Template:Cite book</ref>Template:Rp Template:Rp
Name Die Description Pins Transistors DiodesTemplate:Efn Resistors Capacitors
SE101 VF101 4-input NANDTemplate:Efn 10 1 6 3 0
SE102 3-input NANDTemplate:Efn 9
SE104 ?Template:Efn 6 diodes array 8 0 6 1 0
SE120 VF120 flip-flop 7 2 10 8 2
SE121 ?
SE122
SE130 ? buffer 5 5 5 6 0
SE140 VF140 2-input XOR 8 1 7 3 0
TTL
SE200 ? 3-input TTL NAND 7 2Template:Efn 0 2 0

Template:Table alignment

citation
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}}</ref><ref name="annual_1973"/>

Year Revenue Headcount
1963 $1,892,000 307
1964 $4,942,000 309
1965 $5,803,000 646
1966 $12,635,000 1,224
1967 $20,932,000 1,928
1968 $29,054,000 2,745
1969 $41,357,000 4,052
1970 $33,726,000 2,322
1971 $31,840,000 3,698
1972 $48,428,000 5,194
1973 $98,274,000 9,557
1974 $120,836,000 6,688
1975 $77,600,000 6,400
1976 $127,400,000 8,635
1977 $172,300,000 8,042
1978 $201,275,000 9,793
1979 $257,645,000 11,742
1980 $367,805,000 13,888

The standard dies (VF101, VF120, VF140) were the basis for the variFEBSTemplate:Efn customization option, where the interconnect (metallization) layer was specified by the customer. Texas Instruments offered a similar service with their Master Slice product. The preFEBS option on the other hand allowed customers to send in full-custom designs prototyped on breadboards with Signetics-approved discrete components. Fairchild offered a similar service with their Integrated Circuit Breadboards product.<ref name="Khambata63"/>Template:Rp Everything above except the SE200 TTL was advertised for in January 1963 and perhaps a little earlier.<ref>Template:Cite news</ref>

However, it was struggling to sell custom-made circuits, which was the original goal, and was quickly exhausting the initial investment money, so new investors had to be found. In November 1962, Corning Glass Works invested another $1.7M in Signetics, in exchange for 51% ownership. This money enabled Signetics to survive, and much of the funding was put into a marketing and sales campaign.

In 1963, the Department of Defense made a decision to begin a shift towards microelectronics and ICs, due to their small size, higher reliability, and lower power consumption. As a result, military contractors began to explore the field, and as Signetics was one of the few firms selling custom circuits, it benefited greatly. In the fall of 1963 and throughout most of 1964, sales grew quickly, and the company finally became profitable. Signetics also grew rapidly, hiring more engineers and increasing its manufacturing space. In 1964, Signetics opened a large new fabricating plant ("fab") in Sunnyvale, California. At this time, it was by far the largest manufacturer of ICs in Silicon Valley. It later expanded also to factories in Orem, Utah and Albuquerque, New Mexico, where there were two fabs, FAB22 (4-inch) and FAB23 (6-inch).

President James F. Riley announced on June 8, 1966 that Signetics would establish a plant in Provo, Utah at 1450 North State Street in a 30,000sqft former bowling alley, with production to begin in September 1966. A payroll of $1 million per year was to support a work force of 150.<ref>Template:Cite news</ref> The plant closed on December 15, 1992, final employment was 900, down from a prior all-time high of 2000. Operations were moved to Albuquerque, Sunnyvale and Caen. Plant additions in 1974, 1981 and 1988 had increased the square footage to an eventual 530,000.<ref>Template:Cite news</ref><ref>Template:Cite news</ref>

In 1964, Fairchild began to muscle its way into the IC business. Since Signetics circuits were the de facto standard in the market, Fairchild decided to copy them. However, it used its superior cash position, marketing power, and manufacturing strength to undercut its competitor by slashing prices and flooding the market. Signetics was struggling to compete, and began losing money again. Corning saw this as proof of poor management, and used its controlling interest to drive out most of the founders and take complete control of the company.

Template:Nowrap
DTL ICs (Sep 12, 1966)<ref name="1966_list"/>
Name Description Price 1-24pcs
SE1xxK SE1xxG SE1xxJ NE1xxJ NE1xxA
-55-125 °C 0-70 °C
TO-5 flat pack DIP
10-lead 14-lead
101 4-input NAND 15.00 16.80
102 3-input NAND 14.70 16.55
105 6-input gate expander 10.50 12.40
106 dual 5-input gate expander 7.30 5.10 4.50
110 3-input high fanout NAND 16.55 18.60
111 dual 4-input high fanout NAND 15.50
112 dual 3-input high fanout NAND 15.50 6.85
113 dual 3-input high fanout NAND 16.55
115 dual 2-input NAND 16.55 18.60
116 dual 4-input NAND 13.35 6.55 5.90
124 RST flip-flop 20.20 22.40 17.85 10.40 6.85
125 J-K flip-flop 19.80 11.55 8.45
150 2-input clock/capacitive line driver 17.20 19.15
155 dual 4-input clock/capacitive line driver 15.50
156 dual 4-input clock/capacitive line driver 15.50 7.65 6.85
157 dual 3-input clock/capacitive line driver 17.20
160 one-shot multivibrator 57.50 59.90
161 one-shot multivibrator 72.00 59.90 26.10
170 triple 3-input NAND 14.80 7.45 5.90
180 quad 2-input NAND 14.80 7.45 5.90
181 quad inverter 20.20
CS7xxK CS7xxG CS7xxJ
700 dual 3-2-input NAND 17.20 19.15
701 dual 3-2-input NAND 17.20 19.15
704 RST flip-flop 21.00 23.20
705 dual 3-input AND 13.00 15.00
709 dual 3-input gate expander 8.30 10.50
715 dual 2-input clock/capacitive line driver 20.00
716 dual 2-input high fanout NAND 19.50
720 quad 2-input NAND 15.60
721 triple 3-input NAND 15.60
727 triple 2-input NAND 15.60
729 RST flip-flop 18.60
730 dual 5-input NAND 14.10
731 quad 2-input gate expander 8.00
732 12-input gate expander 8.00
UTILOGIC (low cost) 10-lead ICs (Sep 12, 1966)<ref name="1966_list"/>
Name Description Price 1-24pcs
SU3xxK SU3xxG LU3xxK
-20-85 °C 10-55 °C
TO-5 flat pack TO-5
300 dual 3-input gate expander 7.35 10.15 3.90
305 6-input AND 8.20 11.00 4.20
306 dual 3-input AND
314 7-input NOR
315 dual 3-input NOR
316 dual 2-input NOR
320 J-K flip-flop 13.30 16.10 5.55
331 dual 2-input OR 8.20 11.00 4.20
332 dual 3-input OR
Low Power ICs (Sep 12, 1966)<ref name="1966_list">Template:Cite book</ref>
Name Description Price 1-24 pcs
SE4xxJ NE4xxJ NE4xxA SP4xxA ST4xxA
-55-125 °C 0-70 °C 0-70 °C 15-55 °C 0-70 °C
flat pack DIP
416 dual 4-input NAND 22.50 11.25 6.60 5.25 5.75
417 dual 3-input NAND
424 dual flip-flop 30.00 15.00 12.00 10.00 11.00
440 dual XOR 23.20 12.00 6.60 5.25 5.75
455 dual 4-input buffer
480 quad 2-input NAND
Linear ICs (Sep 12, 1966)<ref name="1966_list"/>
Name Description Prices 1-24pcs
SE5xxK SE5xxG NE5xxK
-55-125 °C 0-70 °C
TO-5 flat pack TO-5
500 gated sense amplifier 22.50 25.50 11.25
501 video amplifier 34.40 37.40 17.15
504 gated sense amplifier 22.50 25.50 11.25
505 general purpose differential amplifier
506 differential operational amplifer 52.50 54.50 26.25
518 analog comparator 22.50 25.50 11.25
TTL ICs (Sep 12, 1966)<ref name="1966_list"/>
Name Description Prices 1-24pcs
SE8xxJ NE8xxJ SP8xxA ST8xxA NE8xxA
-55-125 °C 0-70 °C 15-55 °C 0-70 °C
flat pack DIP
806 dual 4-input gate expander 10.40 5.20 4.65 4.88 5.25
807 8-input NAND 13.35 6.55 4.65 5.10 5.75
816 dual 4-input NAND
825 J-K flip-flop 19.80 11.55 7.20 7.90 9.00
826 dual AC flip-flop 30.00 15.00 12.60 13.80 15.00
840 dual XOR 14.20 7.10 5.25 5.75 6.60
855 dual 4-input power gate 15.50 7.65
870 triple 3-input NAND 14.80 7.45

Signetics managed to stabilize and become profitable again, but it never regained its market leadership, which was now firmly held by Fairchild. Its engineers continued to innovate in IC technology, and remained a significant force. Around 1971, the Signetics introduced the innovative 555 timer IC, which it called "The IC Time Machine".<ref name="Cimbala"/> This was the first and only low-cost commercial IC timer available at the time, and soon became a best-seller. Signetics was known for creating innovative ICs for both analog electronics and the rapidly-growing digital electronics applications.

In November 1973, Signetics raised $20,600,000 with the sale of 1,300,000 shares of common stock to the public. This diluted Corning's stake from 92% to 70.2%. The first annual report to shareholders was published for the year ending December 30, 1973.<ref name="annual_1973">Template:Cite report</ref>

In 1975 second source production began of 2 chips of the Intel 3000 series bit slice microprocessor.<ref>Template:Cite news</ref>

Template:Plain image with caption In 1975, the company was acquired by Philips, who continued the brand for some years. In the United States, Signetics reached its manufacturing height at around 1980. Later it was fully integrated into Philips Semiconductors (now NXP).<ref name="SVHA" />

In 1995, Philips spun off the assembly and test operation in South Korea, which was started by Signetics in 1966, as an independent subcontract service provider. They continue to use the name "Signetics". Since 2000, the Signetics brand is primarily used by the Young Poong Group.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Notable devices

Signetics introduced a number of innovative analog and digital integrated circuits which became de facto standard products widely used in mass-produced electronics. Freely-distributed application notes published by Signetics were key in educating students and practicing engineers in the usefulness and simplicity of their ICs. Some designs remain iconic and are still used today in basic electronics lab exercises.<ref name="Cimbala">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

  • The Signetics 555 timer IC was probably their best-known new product. Still widely manufactured and used today in original and updated versions, the basic design appears in many simple electronic timers, oscillators, and other basic electronic systems.
  • The Signetics NE565 was a pioneering implementation of powerful phase-locked loop technology in an IC, which along with the voltage-controlled oscillator (VCO) NE566, helped advance digital communications.
  • The Signetics 2650 was an 8-bit microprocessor introduced in the early 1970s and used in several video games and game systems (e.g. the Arcadia 2001).<ref name="arcadia">{{#invoke:citation/CS1|citation

|CitationClass=web }}</ref> and in the early telesoftware broadcasts.

|CitationClass=web }}</ref> was a character generator chip used in the TV Typewriter,<ref>Template:Cite journal</ref> Apple I, and early versions of the Apple II, as well as Atari's earliest arcade games.

  • The Signetics 82S100 FPLA (Field Programmable Logic Array) was the first commercially successful user programmable logic device, the forerunner of the modern FPGA.<ref name = "Signetics 82S100">Template:Cite journal Press release on Signetics 82S100 and 82S101 field programmable logic arrays. Sixteen inputs pins, 8 output pins and 48 product terms. NiCr fuse link programming.</ref><ref>Template:Cite journal</ref>
  • NE5532, a widely used audio op amp, now generic and produced by many other manufacturers. According to one 1993 article, NE5532 was "the standard audio op amp to which others are compared".<ref>Template:Cite book</ref>
  • NE5517, an operational transconductance amplifier, still in production by NXP Semiconductors and also generically made by other manufacturers; it is given as a classic OTA example in a number of textbooks.<ref name="Rybin2011">Template:Cite book</ref><ref name="Haidekker2013">Template:Cite book</ref>

See also

References

Template:Reflist Template:Notelist

Further reading

  • Lécuyer, C. Making Silicon Valley: Innovation and the Growth of High Tech, 1930-1970, MIT Press, 2006. Template:ISBN

Template:NXP Semiconductors Template:Programmable Logic