Chip Solutions


HDI PCBs High Density Interconnects

High Speed PCB

PCB Design

Test Interface Board

PCB Library
Interconnects for electronic circuits

HDI PCBs High Density Interconnects

The HDI design team is backed by a group of experts in electrical simulation, whose primary responsibility is to ensure that the design successfully addresses any critical signal concerns and operates efficiently.

We have established enduring relationships with a carefully chosen group of PCB fab and assembly houses to provide exceptional support for both prototype and volume requirements. Our specialized PCB layout expertise in RF and mixed signal board design, combined with our proficiency in signal integrity and thermal analysis, offers unparalleled value to customers seeking comprehensive solutions for their PCB design process needs.

We take full accountability for the complete board development cycle, from schematic development to delivering fully tested and certified assembled boards (PCA - Printed Circuit Assembly). Our expertise lies in handling tightly constrained, highly complex circuit boards for military applications, avionics, and processor motherboards, making us the ideal partner for those seeking to develop advanced, cutting-edge technology.

Our process

Caliber Interconnects provides top-notch solutions for Printed Circuit Board (PCB) design. Our end-to-end approach delivers competitive schedules and costs while meeting the given schematic and design inputs. We specialize in addressing the challenges associated with high-speed PCBs, including transmission line effects, electromagnetic interference (EMI), and crosstalk. Our proven board design processes and methodologies ensure the delivery of complex and high-quality PCB board designs.

Board Design Skills

As an experienced PCB designer, we possess a wide range of expertise in designing high-speed digital, RF, and mixed-signal circuits. Our design capabilities extend to high-speed backplane PCBs, controlled impedance boards, and precision analog/mixed-signal boards with controlled delay matching. In addition, we have extensive knowledge and experience in RF and microwave design, as well as microvia design, constraint-driven placement, and routing.

Our designs always adhere to IPC/MIL standards, and we specialize in creating high-speed PCBs that involve multi-gigabit series. We are adept at designing low power consuming boards that utilize power management techniques and meet ROHS compliance requirements.

Furthermore, we have extensive experience in HDI layout designs with micro vias, high-speed multilayer PCBs with BGA and FBGA designs, and flexible PCB design (FPCB). Our expertise and commitment to quality enable us to deliver exceptional results to our clients.

Technology Experience

We possess technical expertise in a diverse range of technologies, including High Definition Multimedia Interface (HDMI), Versa Module Europa (VME), Low Voltage Differential Signaling (LVDS), Reduced Voltage Differential Signaling (RVDS), High-speed Universal Serial Bus (USB), Serial Peripheral Interface 4 (SPI-4), Rambus Dynamic Random-Access Memory (RDRAM), Serial Advanced Technology Attachment (SATA), Rapid Input/Output (IO), High-speed Serializer/Deserializer (SERDES), Double Data Rate 2/3/4 (DDR2/3/4), Quad Data Rate-Synchronous Random Access Memory (QDR-SRAM), Ethernet Physical Layer (PHY), Peripheral Component Interconnect (PCI), Peripheral Component Interconnect Express (PCI-e), and Backplane connectors with speeds up to 30 Gbps.

Design Tools

Our design process relies on a variety of tools, each of which serves a specific purpose. For capturing schematics and designing boards, we use software such as Cadence Concept HDL, Allegro, Altium 365, Eagle, KiCad, Zuken CR5000, Cadvance, OrCAD Capture, Mentor Design Capture, DX Designer, Expedition, Mentor PowerLogic, PowerPCB, Zuken CADSTAR, Altium Protel, and PCAD. These tools allow us to create and optimize circuit designs, simulate and verify their functionality, and generate accurate documentation. By utilizing a range of design tools, we can tailor our approach to each project's unique needs and deliver high-quality solutions that meet our clients' requirements.


Our company takes pride in being an IPC member and having IPC certified designers. We have an extensive collection of footprint libraries that are compliant with both IEEE and IPC standards. Additionally, we have a dedicated engineering team that focuses solely on PCB layout verification and SI analysis. Our in-house software team extends the capabilities of our EDA tools by customizing scripts and automation tools. With the ability to scale up in a short time frame, we offer fast and quick turn designs. It is our responsibility to ensure that our products pass the EMI/EMC, vibration, and drop test qualification processes for product certification

PCB Library Management

Our PCB Library Management service supports the development and maintenance of component libraries according to the IPC 7351B standards. In addition, customer specifications can be incorporated alongside the IPC standards, depending on the requirements. The service also provides an enhanced padstack naming convention that allows for unique and simple identification of pads. Symbol library creation and component footprint creation and maintenance for multiple EDA tools are also available. The service can accommodate organization-specific standards as needed. The dedicated library team ensures that new component library requirements have zero defects in their footprints. The service also offers 3D modeling of components in multiple CAD tools and can develop libraries under all EDA tools.

Business Model

Our business model offers flexible resource placement solutions. We provide on-site resource placement and off-site design services on an hourly or project basis. Clients can also opt for a cost-effective retainership model to retain our resources for a fixed cost. Our model caters to the varying needs of clients and ensures they receive the best value for their investment.

Advanced PCB Tools from Cadence

ASC200 - System capture designer

ALG200 - Designer II

ALG300 - Venture

ALG3130 - Manufacturing option

ALG3150 - Productivity toolboxOption

ASC1220 - Design publisher

ATE PCBs Services

At Caliber Interconnects, we provide premium design and routing support services to vendors of ATE test interface boards. Our team of skilled designers works closely with your engineers, strictly adhering to your design and DFM specifications, to ensure the efficient and timely creation of high-yield ATE boards. As a reliable design partner, we take pride in being an offshore extension of your design team, dedicated to delivering top-quality results.

Our team is highly experienced in working with leading test board and ATE IC test system vendors. We specialize in designing boards for a variety of ATE templates using various EDA design tools, delivering high-yield design solutions. Our team of experts has developed a reliable design and signal routing process that ensures the timely delivery of the right design with high-quality results achieved in the first attempt. We thoroughly analyze each ATE board for electrical issues to ensure signal integrity, and our signal routing is meticulously performed by hand, taking into account the PCB stack-up, distance to reference planes, and power-to-ground configurations to minimize crosstalk and distortion. Our designs feature lower inductance and higher signal strength, resulting in optimal performance.

ATE Board Design - Service Highlights

Our team has expertise in designing test boards across popular tester platforms. We have handled over 6000 test board designs and can quickly ramp up resources to achieve a quick turnaround time. We have experience working with major ATE board fab houses and specs, as well as major probe card assembly houses. Our team has the capability to route 40000 nets in just 2 days for memory probe cards. Additionally, we are capable of designing RF probe cards and load boards. We also have in-house signal integrity analysis capability for high-speed load boards and probecards.

ATE Testboards

Universal and specialty probe cards, blade probecards

Device interface board(DIB)

Handler interface boards

Probe interface boards

Load boards

Bench boards

Evaluation boards

Characterization boards

Adapter cards

Burn in boards

Hast boards, ESD and latch up boards

Board Design Capabilities

We offer placement and routing services for various types of boards such as probe cards, load boards, DUT, and handler interface boards. We ensure proper impedance and length matching for precise testing. We design prototype load boards for both manual and fully automated handler applications. Our expertise includes various types of probe cards such as epoxy cantilever, blade, WLP, and vertical contact, including COBRA probe cards. We also design burn-in tests, ESD, bench, and reference boards for different types of testing. We specialize in low power and high-speed testing for digital, analog, mixed signal, and RF devices. We use high-speed layout techniques to reduce distortion, delays, and noise. We carefully select PCB fabrication materials to ensure boards have less inductance and higher signal strength, and we have industry-wide knowledge on test sockets, probers, handlers, and docking systems. We support various tester platforms like Verigy, Advantest, Teradyne, LTX-Credence, Yokogawa, etc.

Board Design Experience

Our design process prioritizes signal integrity, utilizing schematic-driven and layout techniques that follow IPC standards, such as IPC-2221, -2222, -2223, and IPC-7351. Our experienced team is well-versed in a range of manufacturing processes, including DFM, DFA, DFT, and ICT, ensuring the best possible product. We incorporate precision analog and mixed signal integration, utilizing edge-coupled and tandem differential pairs, and carefully consider skew matching based on signal rise time. Our board stack-up is optimized with controlled impedance for micro stripline, stripline, and dual stripline stackups. For faster routing, we use our in-house tools, which result in aesthetically pleasing designs with minimal vias. We also employ advanced routing techniques, including blind and buried vias, micro-via and via-less routing, constraint-driven placement, and routing.

Tester Types







National instruments







Interface Board Design

Our team has extensive experience designing probecards for various applications and providing services to leading probecard vendors worldwide. We have a strong track record of delivering high-quality designs on schedule, regardless of complexity, which has earned us repeat business requests.

Designing probecards with high pin counts and densities is a routing-intensive task that requires meticulous attention to detail. Routing signal and ground traces typically accounts for more than 50% of the total design time. Achieving board planarity requires evenly spacing the traces across the spider area, and their lengths must be matched to zero tolerance to ensure optimal performance. Completing a design of this complexity in a short period requires significant manpower.

At Caliber Interconnects Private Limited, we have the expertise to overcome the challenges of designing a probecard in a short period. We accomplish this by extending the capabilities of EDA tools through our customization capabilities. Our in-house software team has developed intelligent software tools and utilities that enable designers to achieve fast turnarounds in each design process. Our entire design process is tool-driven, and we continuously innovate new tools to facilitate manual routing. Our team can route 2000 traces in a day, enabling us to meet customer-specified timelines.

SiP Design EDA Tool Expertise

Cadence SiP digital

Cadence SiP RF

Design Highlights

We have extensive experience in designing a wide range of probecards, including fine pitch, high density, multi dut diagonal, and RF cantilever probecards. Additionally, we have designed vertical probecards and space transformers, MLO/MLC substrates, low leakage parametric probecards, blade cards, motherboards, and RF probecards. We also have experience in designing wafer sort performance interface boards and motherboards.

Our expertise extends beyond design to include electrical simulation of probecard and probe pins. We are able to keep the layer count low and achieve zero tolerances routes, resulting in efficient and effective designs. We have designed boards for high frequency memory, logic, and RF devices, and have an in-depth understanding of tester instrumentation and prober technology.

Load Board Design

A properly designed loadboard is critical for testing ICs as it significantly reduces the risk of test pass failures. At Caliber interconnects, we specialize in creating high-performance loadboards that allow for accurate testing of your device as per your test plan. Our experienced ATE testing engineers are skilled in designing flexible ATE test schematics that can accommodate future test requirements.

Our loadboard design expertise covers a wide range of devices, including SoC/Mixed signals, LCD, Memory, Image sensor, Power, Digital, Analog, and RF devices. We have also designed boards for high pin-count BGA devices up to 2016 with pitches as small as 0.4mm, and devices operating at frequencies up to 28Ghz.

We apply high-speed design techniques and conduct signal integrity analysis to ensure the highest possible performance. Additionally, we have access to tester template libraries, socket and component footprints, and handler libraries to further streamline the design process.

Our knowledge of handlers and tester instrumentation allows us to ensure zero tolerance for both high-performance and low-speed digital signals. We have extensive experience working with popular ATE systems, tester instrumentation, handlers, and sockets.

Advantages that Set us Apart:

Our team includes highly skilled and experienced professionals, and we have access to extensive libraries and ATE templates

We are experts in using EDA tools and can customize them to meet specific project needs

We have developed our own software tools to streamline the design and layout process

We can route up to 20000 nets per day

Our interactive design environment includes video and web conferencing for seamless collaboration

All critical load boards undergo thorough simulation

Our test and application engineers verify all deliveries for quality assurance


Caliber Interconnects is a leading design and manufacturing service provider with advanced proficiency in burn-in designs. Our comprehensive expertise encompasses BIB layout design, burn-in board design, universal boards, and more. We meticulously select materials and components based on test requirements, ensuring that every specification is met while avoiding unnecessary costs.

We specialize in burn-in board designs that can withstand peak temperatures ranging from 125°C to 250°C. We use High Tg FR4 or special polyimide materials, depending on the required test temperature.

We offer both Universal board designs and Custom specific designs, and our turnaround time is quick. Our team is experienced in handling boards of all sizes, with versatile complexities, including BGA, LGA, QFP, DIP, custom sockets, and multiple layers, for both prototypes and production.

Our broad knowledge across the product development cycle allows us to understand all the requirements, including dielectric material choices, soldering and assembling materials, required plating thickness and material combinations, and more. This results in faster delivery cycles throughout the development process.

Quick Facts

We offer temperature-accelerated and humid testing services for custom-specific ASICs, using universal boards and a range of materials including high tg FR4, polymide, and special polymides suitable for temperatures ranging from 125°C to 250°C. Our team of experts has extensive knowledge and experience in all aspects of product development, including design, fabrication, assembly, and testing.

EMS/Contract Manufacturing Services/ PCB Turnkey Solutions

Caliber interconnects is a trailblazer in EMS/contract manufacturing services, with a proven track record and unmatched expertise in the PCB industry. Our cutting-edge engineering analysis and NPI solutions seamlessly bridge the gap between idea and final product, delivering exceptional value to our clients. Our advanced PCBs and expert engineering analysis not only meet but exceed the highest performance standards, empowering our clients to thrive in their core business.

With our NPI (New Product Introduction) and product engineering process, we can effectively synchronize our development efforts with our customers' requirements. Our approach is centered on end product performance, allowing our customers to anticipate and plan for PCB (Printed Circuit Board) costs and requirements well in advance of volume production through quick-turnaround prototypes.

Our cross-functional team collaborates on design, PCB fabrication, assembly, and sourcing activities to ensure a smooth transition from new product development to cost-efficient and high-volume production.


By following our NPI & product engineering process, we ensure that our development efforts are aligned with our customers' needs. We offer intelligent sourcing of suppliers based on board complexity and requirements, which allows our customers to benefit from our expertise. Our cross-functional analysis enables us to select the right materials and use cost-efficient manufacturing methods, thereby facilitating assembly.

Best cost in industry

Best timeline and quick turnarounds

Both prototype PCB and Volume PCB production

Component Procurement

We choose components based on their intended use and application field, and source them from around the world. Our costing analysis and comparisons ensure that you get the best value for your money.

EMS Related Services

We provide a range of services related to Electronics Manufacturing Services (EMS), including PCB CAM and programming, as well as DFM/DFA/DFT analysis. We also offer PCB panelization, stack-ups and impedance analysis, custom-made BPO, assembly stencil creation, and bare board testing.