ROHM VQFP Design Support Document

This document provides VQFP48, VQFP48C, VQFP64, VQFP80 package dimensions


ROHM VQFP Design Support Document - cover page
Brand
ROHM
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
7
File format
PDF
File size
928 KB
Published
04 June, 2012
Updated
30 September, 2023
MD5 checksum
E3F125E43432BCD1C6EFCAB327D232ED

About this manual

The document describes the structure, materials, and packaging options for ROHM VQFP (48‑lead and 64‑lead) semiconductor packages. It includes tape‑and‑reel dimensions, packing styles, shipping methods, and labeling requirements.

Key technical sections cover recommended storage conditions, footprint dimensions, and detailed soldering profiles for reflow, wave, and hand soldering. The guide also lists peel‑back strength, speed, and handling notes to ensure reliable assembly of VQFP devices.

What's inside

  • Structure and Materials
  • Tape and Reel Information
  • Packing and Shipping Style
  • Storage Conditions
  • Footprint Dimensions
  • Soldering Conditions
  • Reflow Temperature Profile
  • Wave Soldering Parameters
  • Solder Iron Settings
  • Peel‑back Strength and Speed

Specifications

Land pitch (VQFP48C)0.50 mm
Land length (VQFP48C)7.20 mm
Land width (VQFP48C)7.20 mm
Package height (VQFP48C)1.10 mm
Lead thickness (VQFP48C)0.25 mm
Land pitch (VQFP64)0.50 mm
Land length (VQFP64)10.20 mm
Land width (VQFP64)10.20 mm
Package height (VQFP64)1.20 mm
Recommended storage temperature5 °C to 30 °C
Recommended storage humidity40 % to 70 % RH
Maximum storage period1 year
Maximum reflow temperature260 °C
Preheating temperature range (reflow)130 °C to 190 °C
Wave soldering preheat temperature120 °C to 150 °C
Wave soldering solder temperature260 °C ±3 °C
Maximum solder‑iron temperature≤ 380 °C
Peel‑back strength (cover tape)0.2 N to 0.7 N
Peel‑back speed300 mm/min + 10 mm/min

Frequently asked questions

What temperature range should VQFP packages be stored at?

The recommended storage temperature is 5 °C to 30 °C.

What is the maximum reflow soldering temperature for VQFP packages?

The maximum reflow temperature is 260 °C.

What is the allowed peel‑back strength for the cover tape?

Cover tape peel‑back strength should be between 0.2 N and 0.7 N.

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