| Our Capabilities |
Our technology is state of the art. This page shows our
routine capabilities. We love challenges and frequently
do which are beyond the capabilities show here. Call our
technical advisors to discuss any capabilities not shown here.
PCB Express Inc., constantly upgrade our PCB Assembly line as
per the technological changes and requirements in the fast flourishing
PCB Assembly industry. It is PCB Printed Circuit Board motto to
manufacture Prototype Printed Circuit Boards to suit the exact
requirement of our client ranging from small business to huge
manufacturing unitsPCB Express Inc. Prototype Circuit Boards’
CAD/CAM department serves as a solid starting point for prototypes.
The old adage goes, “fail to plan, and plan to fail.”
Our planning department performs design rule checks (DRC’s)
for all PCB’s we produce. . If you are interested in any
styles of PCB Prototypes, please feel free to contact us.
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Manufacturers
of Printed Circuit Board (PCB), Prototype Printed Circuit Boards: |
PCB Express Inc is a Printed Circuit Board (PCB) manufacturer
producing high quality, low cost barebones PCB's and Prototype
Printed Circuit Boards. PCB Express Inc is one of the
reliable manufacturers of PCB prototypes - Prototype Printed Circuit
Boards. PCB Express serves the PCB
printed circuit board industry. We meet your PCB Prototypes
and fabrication needs with 24-hour turnarounds and with the highest
quality printed
circuit boards.
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| MULTILAYER LAMINATION |
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Maximum Board Size: 19" X 27" |
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Maximum number of layers: 32 |
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Panel Thickness tolerance |
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Panel Thickness |
Tolerance |
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.015"- .030" |
+/- 10% |
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>.031 |
+/- 10% |
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| MATERIALS
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Laminate with the following parameters: |
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Material types used: FR-4, Polyamid,
G- |
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Tek, Teflon, G- 10 |
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Inner layer copper cladding |
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Maximum cu weights (planes) |
3oz |
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Maximum cu weight (signals) |
3oz |
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Minimum cu weight |
1/2oz |
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| ETCHING
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Cupric Chloride Etching |
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Ammonia Etching |
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Minimum conductor width: .002" |
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Minimum feature spacing: .003"
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Finished conductor widths from the
original |
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artwork |
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CU weight |
Internal |
External |
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1oz and |
+.001" |
+.001" |
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below 2oz |
+/- .002 |
+/- .002 |
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DRILLING
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Buried & Blind Vias |
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Minimum drilled holes size: .008"
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(finished .004") |
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Minimum slot width size: .029(finished
.025") |
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Minimum hole size tolerances |
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Hole Size |
Unplated |
Plated |
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< .040" |
+/- .001" |
+/- .002" |
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.040"- .093" |
+/- .015" |
+/- .004" |
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Minimum distance, edge to edge,
from plated |
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hole to internal circuitry or plane:
.010" |
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Minimum distance, edge to edge,
from non- |
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plated hole to circuitry: .010 internal/
.007" external |
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Standard finished minimum annular
ring if |
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not specified otherwise: .001 |
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Desired Minimum pad size is .014
over hole |
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dia |
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Tighter annular ring is possible
with |
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teardrops or by reducing finished
annular ring requirements |
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Controlled depth drill available |
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PLATING
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Maximum Hole Aspect Ratio:
12:1 |
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(SMOBC) Solder mask over bare copper, |
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HASL/Immersion Tin |
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SMOBC with OSP, ENTEK Coating 56A |
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Immersion Silver |
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Palladium Plating |
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Immersion Gold, Selective or complete |
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board |
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Electroless Gold, Selective or complete |
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board |
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Electrolytic Gold, Selective or complete |
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board |
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Soft Bondable Gold, Selective or complete |
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board |
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| LAYER
CONSTRUCTIONS/ IMPEDANCE DESIGN |
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Minimum core thickness: .004" |
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Minimum dielectric: .0035" (2113) |
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Impedance stack-up design and |
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Verification service |
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Buried and blind vias |
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Sequential lamination structure |
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Differential Impedance |
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| FABRICATION |
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Tolerance on overall dimensions:
+/- .005 |
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Minimum inside radius: .015 |
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Scoring, In-Board Beveling, Beveling |
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Countersinking, Counter-boring, Edge |
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Milling |
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| SOLDERMASK/ LEGEND |
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Per IPC-SM-840 |
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Wet types: SR 1000, SR 1020, SR 2030 |
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LPI |
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Dry Film Types: Dupont RISTON MM, |
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SHIPLEY 5050 |
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Soldermask colors: Red, Green, Blue, |
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Black, Clear |
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Minimum clearance: LPI- .002", Dry Film |
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-.003", Wet Mask - .006" |
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Legend colors: White, Yellow, Black, Red, |
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Orange |
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| ELECTRICAL
TEST |
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CAD net-list testing |
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Electrical test parameters compliant with |
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IPC and Bellcore specifications |
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Probe testing down to .006" |
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Standard test parameters: isolation-
10 |
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meg ohms, continuity- 10 ohms |
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Voltage up to 250 Volts |
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| IMPEDANCE MEASUREMENTS |
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Printouts of Impedance measurements
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Impedance measurements of specific traces |
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Single ended and differential impedances |
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| LABORATORY |
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Standard and thermal stress cross-section
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evaluation |
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Layer construction verification |
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Fully equipped chemical analysis lab |
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| DELIVERY |
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Quick Turn Delivery is as fast
as 48 hours |
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Standard Delivery |
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Turn time is based on business days |
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counted in 24 hour cycles |
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| Terms and Conditions |
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We offer Net 30 on approved Credit
Application. |
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We accept Visa and Master Card. We don't process
your credit card, unless we start your job. |
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Quotation is based on the specifications provided.
Changes require a new quotation. We reserve the right to re-quote
after an Engineering review of |
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the files provided. |
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