What Is a Chip? Definition, Types and the IC Design Process

A chip is a small semiconductor device that performs an electronic function. In component catalogs, the word often means an integrated circuit (IC): interconnected electronic devices formed together on a semiconductor die. Some ICs perform simple logic; others amplify signals, store data, regulate power or execute software.

For engineering and purchasing, three questions make the term useful: what function does the chip provide, how is that function implemented, and which exact packaged device does the design require?

What is a chip, a die and a package?

A wafer is the substrate on which many semiconductor devices are fabricated. Individual circuit areas become dies when separated. The package provides connections and protection for one or more dies. A packaged IC is the component normally specified on a printed circuit board bill of materials. See Samsung’s wafer terminology and Intel’s assembly and test explanation.

These terms describe different physical levels. A package can contain several dies, while a development board contains packaged components and supporting circuitry. Neither the number of transistors nor a particular manufacturing node defines whether a component is a chip.

How are chips classified?

Start with the signal domain. Analog circuits work with continuously varying electrical signals; digital circuits interpret discrete states. Mixed-signal ICs contain both types of circuitry. Analog-to-digital converters and digital-to-analog converters are familiar mixed-signal examples, as explained in Analog Devices’ mixed-signal glossary.

A second classification describes function: logic, memory, processing, power management, communication or signal conditioning. These labels can overlap. A microcontroller may combine a digital processor, memory, timers and analog converters.

A third classification concerns implementation and integration:

• ASIC: an application-specific integrated circuit customized for a particular requirement. Its fabricated circuitry is defined during design, but it can still contain processor cores or configurable operating registers. Bosch’s ASIC explanation distinguishes customization from a standard product; it does not make ASIC a universal performance ranking.
• FPGA: a field-programmable gate array provides logic resources and routing controlled by configuration. Engineers implement a hardware design within those resources. Capacity, timing, I/O and power limits still apply. AMD’s FPGA architecture guide describes this structure.
• SoC: a system on chip integrates several system functions, such as processing, memory interfaces and peripherals. The actual block diagram determines what is included. The term alone does not specify a GPU, AI accelerator, radio or built-in working memory.

These are different classification axes. An SoC can be application-specific, and an adaptive SoC can combine processors with programmable logic. Compare the actual devices against the workload; a three-column ASIC/FPGA/SoC ranking cannot establish unit price, power consumption or project duration.

Two exact part numbers show why details matter

The TI SNx4HC00 datasheet and SN74HC00DR ordering page identify the logic device. ST’s STM32F103x8/xB datasheet gives the MCU specifications and ordering code. A family-wide maximum must be checked against the selected member: the C8 part has 64 KB Flash, even though the shared datasheet also covers 128 KB devices.

These are different components for different jobs. Their temperature ranges do not establish automotive qualification or interchangeability. Supply ranges also do not mean every signal pin tolerates the supply maximum; check the pin-specific electrical limits.

The chip design process, from requirement to silicon

A digital IC typically follows the stages below. Analog and mixed-signal blocks also require circuit-level design and simulation. Work moves between stages as problems are found; this is not a guaranteed one-pass sequence.

1. Define requirements and architecture. Specify functions, interfaces, operating conditions, power budgets and performance targets. Decide which functions belong in hardware and which in software, and select reusable intellectual-property blocks where appropriate.
2. Describe and verify behavior. Digital designers commonly use register-transfer-level (RTL) descriptions in languages such as Verilog or VHDL. Simulation, formal methods, emulation and prototypes address different verification questions. Passing the selected checks provides evidence against the specification; it cannot promise the absence of every defect.
3. Synthesize the digital logic. Synthesis maps the hardware description to interconnected cells from a target library, using constraints such as timing. This creates a netlist. RTL is a behavioral and structural description, rather than the final transistor layout. See Synopsys’ synthesis explanation.
4. Implement and check the physical design. Floorplanning, placement, clock distribution and routing turn the design into a manufacturable layout. Engineers analyze timing, power and physical constraints and revise the implementation as needed. Synopsys’ physical design overview explains these steps.
5. Release the manufacturing design. Tape-out releases the checked design data for manufacturing preparation. Wafer fabrication builds devices and interconnections through repeated processing operations. The process technology determines the equipment and materials used; EUV lithography is not a requirement for every chip.
6. Assemble, test and validate. Dies are assembled into packages and tested. Silicon validation checks the physical device against intended behavior and operating conditions. Board and system validation then address the application in which the packaged component will operate.

Arm’s SoC development guide connects specification, IP integration, implementation, verification and silicon validation. Samsung’s wafer fabrication introduction explains how circuit patterns are built through repeated processing. Programming an existing FPGA configures its available hardware resources; designing a new ASIC adds a separate semiconductor manufacturing flow.

Turn a chip description into a purchase requirement

Use the manufacturer’s complete ordering code in the BOM and RFQ. Record the package and pin count, temperature grade, supply requirements, required interfaces and relevant electrical limits. For programmable parts, include firmware or configuration requirements and applicable errata. Similar names or matching package outlines are insufficient to approve a substitute.

Keep documentation dates separate from product introduction dates. The TI datasheet is SCLS181H, revised August 2021; the ST datasheet is DS5319 revision 20, dated July 2025, with a revision-history entry of 28 July 2025. Those are document revisions, not evidence of when either exact ordering code first launched.

A useful sourcing request adds quantity, acceptable packaging, required delivery date and any traceability documents needed for the project. Availability, lead time and supporting documents require confirmation for the specific offer. The engineering specification remains the basis for accepting the component.